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/*
* Copyright 2011-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
* the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
*/
package com.amazonaws.services.dynamodbv2.model;
import java.io.Serializable;
import com.amazonaws.AmazonWebServiceRequest;
/**
*
* Represents the input of a Query operation.
*
*/
public class QueryRequest extends com.amazonaws.AmazonWebServiceRequest implements Serializable, Cloneable {
/**
*
* The name of the table containing the requested items.
*
*/
private String tableName;
/**
*
* The name of an index to query. This index can be any local secondary index or global secondary index on the
* table. Note that if you use the IndexName parameter, you must also provide TableName.
*
*/
private String indexName;
/**
*
* The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the
* count of matching items, or in the case of an index, some or all of the attributes projected into the index.
*
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query
* a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the
* parent table. If the index is configured to project all item attributes, then all of the data can be obtained
* from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have
* been projected into the index. If the index is configured to project all attributes, this return value is
* equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return
* value is equivalent to specifying AttributesToGet without specifying any value for Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an
* index. You cannot use both Select and AttributesToGet together in a single request, unless the
* value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
*
*/
private String select;
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use ProjectionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve individual
* elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes will be
* returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request, unless
* the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*/
private java.util.List attributesToGet;
/**
*
* The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the
* number of items up to the limit while processing the results, it stops the operation and returns the matching
* values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can
* pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit,
* it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to
* apply in a subsequent operation to continue the operation. For more information, see Query and Scan in
* the Amazon DynamoDB Developer Guide.
*
*/
private Integer limit;
/**
*
* Determines the read consistency model: If set to true, then the operation uses strongly consistent
* reads; otherwise, the operation uses eventually consistent reads.
*
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index
* with ConsistentRead set to true, you will receive a ValidationException.
*
*/
private Boolean consistentRead;
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use KeyConditionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* The selection criteria for the query. For a query on a table, you can have conditions only on the table primary
* key attributes. You must provide the partition key name and value as an EQ condition. You can
* optionally provide a second condition, referring to the sort key.
*
*
*
* If you don't provide a sort key condition, all of the items that match the partition key will be retrieved. If a
* FilterExpression or QueryFilter is present, it will be applied after the items are retrieved.
*
*
*
* For a query on an index, you can have conditions only on the index key attributes. You must provide the index
* partition key name and value as an EQ condition. You can optionally provide a second condition,
* referring to the index sort key.
*
*
* Each KeyConditions element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the ComparisonOperator being used.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes, for example, equals, greater than, less than,
* and so on.
*
*
* For KeyConditions, only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* The following are descriptions of these comparison operators.
*
*
* -
*
* EQ : Equal.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one specified in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
*
*
* -
*
* LE : Less than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* LT : Less than.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one provided in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GE : Greater than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GT : Greater than.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* BEGINS_WITH : Checks for a prefix.
*
*
* AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a
* set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type).
*
*
* -
*
* BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
*
*
* AttributeValueList must contain two AttributeValue elements of the same type, either String,
* Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to,
* the first element and less than, or equal to, the second element. If an item contains an AttributeValue
* element of a different type than the one provided in the request, the value does not match. For example,
* {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare
* to {"NS":["6", "2", "1"]}
*
*
*
*
*
*
* For usage examples of AttributeValueList and ComparisonOperator, see Legacy
* Conditional Parameters in the Amazon DynamoDB Developer Guide.
*
*/
private java.util.Map keyConditions;
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A condition that evaluates the query results after the items are read and returns only the desired values.
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* A QueryFilter is applied after the items have already been read; the process of filtering does not consume
* any additional read capacity units.
*
*
*
* If you provide more than one condition in the QueryFilter map, then by default all of the conditions must
* evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator
* parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to
* true, rather than all of them.)
*
*
* Note that QueryFilter does not allow key attributes. You cannot define a filter condition on a partition
* key or a sort key.
*
*
* Each QueryFilter element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the operator specified in ComparisonOperator.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For type Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* For information on specifying data types in JSON, see JSON Data Format in
* the Amazon DynamoDB Developer Guide.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes. For example, equals, greater than, less than,
* etc.
*
*
* The following comparison operators are available:
*
*
* EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
*
*
* For complete descriptions of all comparison operators, see the Condition data type.
*
*
*
*/
private java.util.Map queryFilter;
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
*
*/
private String conditionalOperator;
/**
*
* Specifies the order for index traversal: If true (default), the traversal is performed in ascending
* order; if false, the traversal is performed in descending order.
*
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is
* Number, the results are stored in numeric order. For type String, the results are stored in order of ASCII
* character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they are
* stored (by sort key value). This is the default behavior. If ScanIndexForward is false,
* DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
*
*/
private Boolean scanIndexForward;
/**
*
* The primary key of the first item that this operation will evaluate. Use the value that was returned for
* LastEvaluatedKey in the previous operation.
*
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
*
*/
private java.util.Map exclusiveStartKey;
private String returnConsumedCapacity;
/**
*
* A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars,
* sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
*
*
* If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are
* not found, they will not appear in the result.
*
*
* For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
*
* ProjectionExpression replaces the legacy AttributesToGet parameter.
*
*
*/
private String projectionExpression;
/**
*
* A string that contains conditions that DynamoDB applies after the Query operation, but before the data is
* returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
*
*
*
* A FilterExpression is applied after the items have already been read; the process of filtering does not
* consume any additional read capacity units.
*
*
*
* For more information, see Filter
* Expressions in the Amazon DynamoDB Developer Guide.
*
*
*
* FilterExpression replaces the legacy QueryFilter and ConditionalOperator parameters.
*
*
*/
private String filterExpression;
/**
*
* The condition that specifies the key value(s) for items to be retrieved by the Query action.
*
*
* The condition must perform an equality test on a single partition key value. The condition can also perform one
* of several comparison tests on a single sort key value. Query can use KeyConditionExpression to
* retrieve one item with a given partition key value and sort key value, or several items that have the same
* partition key value but different sort key values.
*
*
* The partition key equality test is required, and must be specified in the following format:
*
*
* partitionKeyName = :partitionkeyval
*
*
* If you also want to provide a condition for the sort key, it must be combined using AND with the condition
* for the sort key. Following is an example, using the = comparison operator for the sort key:
*
*
* partitionKeyName = :partitionkeyval AND sortKeyName =
* :sortkeyval
*
*
* Valid comparisons for the sort key condition are as follows:
*
*
* -
*
* sortKeyName = :sortkeyval - true if the sort key value is equal to
* :sortkeyval.
*
*
* -
*
* sortKeyName < :sortkeyval - true if the sort key value is less than
* :sortkeyval.
*
*
* -
*
* sortKeyName <= :sortkeyval - true if the sort key value is less than or equal
* to :sortkeyval.
*
*
* -
*
* sortKeyName > :sortkeyval - true if the sort key value is greater than
* :sortkeyval.
*
*
* -
*
* sortKeyName >= :sortkeyval - true if the sort key value is greater than or
* equal to :sortkeyval.
*
*
* -
*
* sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if
* the sort key value is greater than or equal to :sortkeyval1, and less than or equal to
* :sortkeyval2.
*
*
* -
*
* begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value
* begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note
* that the function name begins_with is case-sensitive.
*
*
*
*
* Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and
* :sortval with actual values at runtime.
*
*
* You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key
* and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a
* DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error
* because Size is a reserved word:
*
*
* -
*
* Size = :myval
*
*
*
*
* To work around this, define a placeholder (such a #S) to represent the attribute name Size.
* KeyConditionExpression then is as follows:
*
*
* -
*
* #S = :myval
*
*
*
*
* For a list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide.
*
*
* For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using
* Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
*
*
*
* KeyConditionExpression replaces the legacy KeyConditions parameter.
*
*
*/
private String keyConditionExpression;
/**
*
* One or more substitution tokens for attribute names in an expression. The following are some use cases for using
* ExpressionAttributeNames:
*
*
* -
*
* To access an attribute whose name conflicts with a DynamoDB reserved word.
*
*
* -
*
* To create a placeholder for repeating occurrences of an attribute name in an expression.
*
*
* -
*
* To prevent special characters in an attribute name from being misinterpreted in an expression.
*
*
*
*
* Use the # character in an expression to dereference an attribute name. For example, consider the following
* attribute name:
*
*
* -
*
* Percentile
*
*
*
*
* The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For
* the complete list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
* ExpressionAttributeNames:
*
*
* -
*
* {"#P":"Percentile"}
*
*
*
*
* You could then use this substitution in an expression, as in this example:
*
*
* -
*
* #P = :val
*
*
*
*
*
* Tokens that begin with the : character are expression attribute values, which are placeholders for
* the actual value at runtime.
*
*
*
* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*/
private java.util.Map expressionAttributeNames;
/**
*
* One or more values that can be substituted in an expression.
*
*
* Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that
* you wanted to check whether the value of the ProductStatus attribute was one of the following:
*
*
* Available | Backordered | Discontinued
*
*
* You would first need to specify ExpressionAttributeValues as follows:
*
*
* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
*
*
* You could then use these values in an expression, such as this:
*
*
* ProductStatus IN (:avail, :back, :disc)
*
*
* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
*
*/
private java.util.Map expressionAttributeValues;
/**
* Default constructor for QueryRequest object. Callers should use the setter or fluent setter (with...) methods to
* initialize the object after creating it.
*/
public QueryRequest() {
}
/**
* Constructs a new QueryRequest object. Callers should use the setter or fluent setter (with...) methods to
* initialize any additional object members.
*
* @param tableName
* The name of the table containing the requested items.
*/
public QueryRequest(String tableName) {
setTableName(tableName);
}
/**
*
* The name of the table containing the requested items.
*
*
* @param tableName
* The name of the table containing the requested items.
*/
public void setTableName(String tableName) {
this.tableName = tableName;
}
/**
*
* The name of the table containing the requested items.
*
*
* @return The name of the table containing the requested items.
*/
public String getTableName() {
return this.tableName;
}
/**
*
* The name of the table containing the requested items.
*
*
* @param tableName
* The name of the table containing the requested items.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withTableName(String tableName) {
setTableName(tableName);
return this;
}
/**
*
* The name of an index to query. This index can be any local secondary index or global secondary index on the
* table. Note that if you use the IndexName parameter, you must also provide TableName.
*
*
* @param indexName
* The name of an index to query. This index can be any local secondary index or global secondary index on
* the table. Note that if you use the IndexName parameter, you must also provide TableName.
*/
public void setIndexName(String indexName) {
this.indexName = indexName;
}
/**
*
* The name of an index to query. This index can be any local secondary index or global secondary index on the
* table. Note that if you use the IndexName parameter, you must also provide TableName.
*
*
* @return The name of an index to query. This index can be any local secondary index or global secondary index on
* the table. Note that if you use the IndexName parameter, you must also provide TableName.
*/
public String getIndexName() {
return this.indexName;
}
/**
*
* The name of an index to query. This index can be any local secondary index or global secondary index on the
* table. Note that if you use the IndexName parameter, you must also provide TableName.
*
*
* @param indexName
* The name of an index to query. This index can be any local secondary index or global secondary index on
* the table. Note that if you use the IndexName parameter, you must also provide TableName.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withIndexName(String indexName) {
setIndexName(indexName);
return this;
}
/**
*
* The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the
* count of matching items, or in the case of an index, some or all of the attributes projected into the index.
*
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query
* a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the
* parent table. If the index is configured to project all item attributes, then all of the data can be obtained
* from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have
* been projected into the index. If the index is configured to project all attributes, this return value is
* equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return
* value is equivalent to specifying AttributesToGet without specifying any value for Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an
* index. You cannot use both Select and AttributesToGet together in a single request, unless the
* value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
*
*
* @param select
* The attributes to be returned in the result. You can retrieve all item attributes, specific item
* attributes, the count of matching items, or in the case of an index, some or all of the attributes
* projected into the index.
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you
* query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire
* item from the parent table. If the index is configured to project all item attributes, then all of the
* data can be obtained from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that
* have been projected into the index. If the index is configured to project all attributes, this return
* value is equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This
* return value is equivalent to specifying AttributesToGet without specifying any value for
* Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected
* into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This
* extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when
* accessing an index. You cannot use both Select and AttributesToGet together in a single
* request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
* @see Select
*/
public void setSelect(String select) {
this.select = select;
}
/**
*
* The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the
* count of matching items, or in the case of an index, some or all of the attributes projected into the index.
*
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query
* a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the
* parent table. If the index is configured to project all item attributes, then all of the data can be obtained
* from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have
* been projected into the index. If the index is configured to project all attributes, this return value is
* equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return
* value is equivalent to specifying AttributesToGet without specifying any value for Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an
* index. You cannot use both Select and AttributesToGet together in a single request, unless the
* value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
*
*
* @return The attributes to be returned in the result. You can retrieve all item attributes, specific item
* attributes, the count of matching items, or in the case of an index, some or all of the attributes
* projected into the index.
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If
* you query a local secondary index, then for each matching item in the index DynamoDB will fetch the
* entire item from the parent table. If the index is configured to project all item attributes, then all of
* the data can be obtained from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes
* that have been projected into the index. If the index is configured to project all attributes, this
* return value is equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This
* return value is equivalent to specifying AttributesToGet without specifying any value for
* Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not
* projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent
* table. This extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when
* accessing an index. You cannot use both Select and AttributesToGet together in a single
* request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is
* equivalent to specifying AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
* @see Select
*/
public String getSelect() {
return this.select;
}
/**
*
* The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the
* count of matching items, or in the case of an index, some or all of the attributes projected into the index.
*
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query
* a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the
* parent table. If the index is configured to project all item attributes, then all of the data can be obtained
* from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have
* been projected into the index. If the index is configured to project all attributes, this return value is
* equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return
* value is equivalent to specifying AttributesToGet without specifying any value for Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an
* index. You cannot use both Select and AttributesToGet together in a single request, unless the
* value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
*
*
* @param select
* The attributes to be returned in the result. You can retrieve all item attributes, specific item
* attributes, the count of matching items, or in the case of an index, some or all of the attributes
* projected into the index.
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you
* query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire
* item from the parent table. If the index is configured to project all item attributes, then all of the
* data can be obtained from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that
* have been projected into the index. If the index is configured to project all attributes, this return
* value is equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This
* return value is equivalent to specifying AttributesToGet without specifying any value for
* Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected
* into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This
* extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when
* accessing an index. You cannot use both Select and AttributesToGet together in a single
* request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
* @return Returns a reference to this object so that method calls can be chained together.
* @see Select
*/
public QueryRequest withSelect(String select) {
setSelect(select);
return this;
}
/**
*
* The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the
* count of matching items, or in the case of an index, some or all of the attributes projected into the index.
*
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query
* a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the
* parent table. If the index is configured to project all item attributes, then all of the data can be obtained
* from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have
* been projected into the index. If the index is configured to project all attributes, this return value is
* equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return
* value is equivalent to specifying AttributesToGet without specifying any value for Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an
* index. You cannot use both Select and AttributesToGet together in a single request, unless the
* value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
*
*
* @param select
* The attributes to be returned in the result. You can retrieve all item attributes, specific item
* attributes, the count of matching items, or in the case of an index, some or all of the attributes
* projected into the index.
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you
* query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire
* item from the parent table. If the index is configured to project all item attributes, then all of the
* data can be obtained from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that
* have been projected into the index. If the index is configured to project all attributes, this return
* value is equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This
* return value is equivalent to specifying AttributesToGet without specifying any value for
* Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected
* into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This
* extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when
* accessing an index. You cannot use both Select and AttributesToGet together in a single
* request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
* @see Select
*/
public void setSelect(Select select) {
this.select = select.toString();
}
/**
*
* The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the
* count of matching items, or in the case of an index, some or all of the attributes projected into the index.
*
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query
* a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the
* parent table. If the index is configured to project all item attributes, then all of the data can be obtained
* from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have
* been projected into the index. If the index is configured to project all attributes, this return value is
* equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return
* value is equivalent to specifying AttributesToGet without specifying any value for Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an
* index. You cannot use both Select and AttributesToGet together in a single request, unless the
* value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
*
*
* @param select
* The attributes to be returned in the result. You can retrieve all item attributes, specific item
* attributes, the count of matching items, or in the case of an index, some or all of the attributes
* projected into the index.
*
* -
*
* ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you
* query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire
* item from the parent table. If the index is configured to project all item attributes, then all of the
* data can be obtained from the local secondary index, and no fetching is required.
*
*
* -
*
* ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that
* have been projected into the index. If the index is configured to project all attributes, this return
* value is equivalent to specifying ALL_ATTRIBUTES.
*
*
* -
*
* COUNT - Returns the number of matching items, rather than the matching items themselves.
*
*
* -
*
* SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This
* return value is equivalent to specifying AttributesToGet without specifying any value for
* Select.
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected
* into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This
* extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
*
*
*
*
* If neither Select nor AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when
* accessing an index. You cannot use both Select and AttributesToGet together in a single
* request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
*
* If you use the ProjectionExpression parameter, then the value for Select can only be
* SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
*
* @return Returns a reference to this object so that method calls can be chained together.
* @see Select
*/
public QueryRequest withSelect(Select select) {
setSelect(select);
return this;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use ProjectionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve individual
* elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes will be
* returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request, unless
* the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
* @return
* This is a legacy parameter, for backward compatibility. New applications should use
* ProjectionExpression instead. Do not combine legacy parameters and expression parameters in a
* single API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve
* individual elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes
* will be returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request,
* unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not
* projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent
* table. This extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
*/
public java.util.List getAttributesToGet() {
return attributesToGet;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use ProjectionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve individual
* elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes will be
* returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request, unless
* the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
* @param attributesToGet
*
* This is a legacy parameter, for backward compatibility. New applications should use
* ProjectionExpression instead. Do not combine legacy parameters and expression parameters in a
* single API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve
* individual elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes
* will be returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request,
* unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected
* into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This
* extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
*/
public void setAttributesToGet(java.util.Collection attributesToGet) {
if (attributesToGet == null) {
this.attributesToGet = null;
return;
}
this.attributesToGet = new java.util.ArrayList(attributesToGet);
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use ProjectionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve individual
* elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes will be
* returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request, unless
* the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
* NOTE: This method appends the values to the existing list (if any). Use
* {@link #setAttributesToGet(java.util.Collection)} or {@link #withAttributesToGet(java.util.Collection)} if you
* want to override the existing values.
*
*
* @param attributesToGet
*
* This is a legacy parameter, for backward compatibility. New applications should use
* ProjectionExpression instead. Do not combine legacy parameters and expression parameters in a
* single API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve
* individual elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes
* will be returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request,
* unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected
* into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This
* extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withAttributesToGet(String... attributesToGet) {
if (this.attributesToGet == null) {
setAttributesToGet(new java.util.ArrayList(attributesToGet.length));
}
for (String ele : attributesToGet) {
this.attributesToGet.add(ele);
}
return this;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use ProjectionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve individual
* elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes will be
* returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request, unless
* the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying
* AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected into
* the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra
* fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index. Global
* secondary index queries cannot fetch attributes from the parent table.
*
*
* @param attributesToGet
*
* This is a legacy parameter, for backward compatibility. New applications should use
* ProjectionExpression instead. Do not combine legacy parameters and expression parameters in a
* single API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
* This parameter allows you to retrieve attributes of type List or Map; however, it cannot retrieve
* individual elements within a List or a Map.
*
*
*
* The names of one or more attributes to retrieve. If no attribute names are provided, then all attributes
* will be returned. If any of the requested attributes are not found, they will not appear in the result.
*
*
* Note that AttributesToGet has no effect on provisioned throughput consumption. DynamoDB determines
* capacity units consumed based on item size, not on the amount of data that is returned to an application.
*
*
* You cannot use both AttributesToGet and Select together in a Query request,
* unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent
* to specifying AttributesToGet without any value for Select.)
*
*
* If you query a local secondary index and request only attributes that are projected into that index, the
* operation will read only the index and not the table. If any of the requested attributes are not projected
* into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This
* extra fetching incurs additional throughput cost and latency.
*
*
* If you query a global secondary index, you can only request attributes that are projected into the index.
* Global secondary index queries cannot fetch attributes from the parent table.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withAttributesToGet(java.util.Collection attributesToGet) {
setAttributesToGet(attributesToGet);
return this;
}
/**
*
* The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the
* number of items up to the limit while processing the results, it stops the operation and returns the matching
* values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can
* pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit,
* it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to
* apply in a subsequent operation to continue the operation. For more information, see Query and Scan in
* the Amazon DynamoDB Developer Guide.
*
*
* @param limit
* The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB
* processes the number of items up to the limit while processing the results, it stops the operation and
* returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a
* subsequent operation, so that you can pick up where you left off. Also, if the processed data set size
* exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up
* to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the
* operation. For more information, see Query and
* Scan in the Amazon DynamoDB Developer Guide.
*/
public void setLimit(Integer limit) {
this.limit = limit;
}
/**
*
* The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the
* number of items up to the limit while processing the results, it stops the operation and returns the matching
* values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can
* pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit,
* it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to
* apply in a subsequent operation to continue the operation. For more information, see Query and Scan in
* the Amazon DynamoDB Developer Guide.
*
*
* @return The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB
* processes the number of items up to the limit while processing the results, it stops the operation and
* returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a
* subsequent operation, so that you can pick up where you left off. Also, if the processed data set size
* exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values
* up to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the
* operation. For more information, see Query and
* Scan in the Amazon DynamoDB Developer Guide.
*/
public Integer getLimit() {
return this.limit;
}
/**
*
* The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the
* number of items up to the limit while processing the results, it stops the operation and returns the matching
* values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can
* pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit,
* it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to
* apply in a subsequent operation to continue the operation. For more information, see Query and Scan in
* the Amazon DynamoDB Developer Guide.
*
*
* @param limit
* The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB
* processes the number of items up to the limit while processing the results, it stops the operation and
* returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a
* subsequent operation, so that you can pick up where you left off. Also, if the processed data set size
* exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up
* to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the
* operation. For more information, see Query and
* Scan in the Amazon DynamoDB Developer Guide.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withLimit(Integer limit) {
setLimit(limit);
return this;
}
/**
*
* Determines the read consistency model: If set to true, then the operation uses strongly consistent
* reads; otherwise, the operation uses eventually consistent reads.
*
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index
* with ConsistentRead set to true, you will receive a ValidationException.
*
*
* @param consistentRead
* Determines the read consistency model: If set to true, then the operation uses strongly
* consistent reads; otherwise, the operation uses eventually consistent reads.
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary
* index with ConsistentRead set to true, you will receive a ValidationException.
*/
public void setConsistentRead(Boolean consistentRead) {
this.consistentRead = consistentRead;
}
/**
*
* Determines the read consistency model: If set to true, then the operation uses strongly consistent
* reads; otherwise, the operation uses eventually consistent reads.
*
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index
* with ConsistentRead set to true, you will receive a ValidationException.
*
*
* @return Determines the read consistency model: If set to true, then the operation uses strongly
* consistent reads; otherwise, the operation uses eventually consistent reads.
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary
* index with ConsistentRead set to true, you will receive a ValidationException.
*/
public Boolean getConsistentRead() {
return this.consistentRead;
}
/**
*
* Determines the read consistency model: If set to true, then the operation uses strongly consistent
* reads; otherwise, the operation uses eventually consistent reads.
*
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index
* with ConsistentRead set to true, you will receive a ValidationException.
*
*
* @param consistentRead
* Determines the read consistency model: If set to true, then the operation uses strongly
* consistent reads; otherwise, the operation uses eventually consistent reads.
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary
* index with ConsistentRead set to true, you will receive a ValidationException.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withConsistentRead(Boolean consistentRead) {
setConsistentRead(consistentRead);
return this;
}
/**
*
* Determines the read consistency model: If set to true, then the operation uses strongly consistent
* reads; otherwise, the operation uses eventually consistent reads.
*
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index
* with ConsistentRead set to true, you will receive a ValidationException.
*
*
* @return Determines the read consistency model: If set to true, then the operation uses strongly
* consistent reads; otherwise, the operation uses eventually consistent reads.
*
* Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary
* index with ConsistentRead set to true, you will receive a ValidationException.
*/
public Boolean isConsistentRead() {
return this.consistentRead;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use KeyConditionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* The selection criteria for the query. For a query on a table, you can have conditions only on the table primary
* key attributes. You must provide the partition key name and value as an EQ condition. You can
* optionally provide a second condition, referring to the sort key.
*
*
*
* If you don't provide a sort key condition, all of the items that match the partition key will be retrieved. If a
* FilterExpression or QueryFilter is present, it will be applied after the items are retrieved.
*
*
*
* For a query on an index, you can have conditions only on the index key attributes. You must provide the index
* partition key name and value as an EQ condition. You can optionally provide a second condition,
* referring to the index sort key.
*
*
* Each KeyConditions element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the ComparisonOperator being used.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes, for example, equals, greater than, less than,
* and so on.
*
*
* For KeyConditions, only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* The following are descriptions of these comparison operators.
*
*
* -
*
* EQ : Equal.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one specified in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
*
*
* -
*
* LE : Less than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* LT : Less than.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one provided in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GE : Greater than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GT : Greater than.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* BEGINS_WITH : Checks for a prefix.
*
*
* AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a
* set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type).
*
*
* -
*
* BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
*
*
* AttributeValueList must contain two AttributeValue elements of the same type, either String,
* Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to,
* the first element and less than, or equal to, the second element. If an item contains an AttributeValue
* element of a different type than the one provided in the request, the value does not match. For example,
* {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare
* to {"NS":["6", "2", "1"]}
*
*
*
*
*
*
* For usage examples of AttributeValueList and ComparisonOperator, see Legacy
* Conditional Parameters in the Amazon DynamoDB Developer Guide.
*
*
* @return
* This is a legacy parameter, for backward compatibility. New applications should use
* KeyConditionExpression instead. Do not combine legacy parameters and expression parameters in a
* single API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* The selection criteria for the query. For a query on a table, you can have conditions only on the table
* primary key attributes. You must provide the partition key name and value as an EQ
* condition. You can optionally provide a second condition, referring to the sort key.
*
*
*
* If you don't provide a sort key condition, all of the items that match the partition key will be
* retrieved. If a FilterExpression or QueryFilter is present, it will be applied after the
* items are retrieved.
*
*
*
* For a query on an index, you can have conditions only on the index key attributes. You must provide the
* index partition key name and value as an EQ condition. You can optionally provide a second
* condition, referring to the index sort key.
*
*
* Each KeyConditions element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of
* values in the list depends on the ComparisonOperator being used.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values.
* For example, a is greater than A, and a is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
*
* For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes, for example, equals, greater than,
* less than, and so on.
*
*
* For KeyConditions, only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* The following are descriptions of these comparison operators.
*
*
* -
*
* EQ : Equal.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one
* specified in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
*
*
* -
*
* LE : Less than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than
* the one provided in the request, the value does not match. For example, {"S":"6"} does not
* equal {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* LT : Less than.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one
* provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* GE : Greater than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than
* the one provided in the request, the value does not match. For example, {"S":"6"} does not
* equal {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* GT : Greater than.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than
* the one provided in the request, the value does not match. For example, {"S":"6"} does not
* equal {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* BEGINS_WITH : Checks for a prefix.
*
*
* AttributeValueList can contain only one AttributeValue of type String or Binary (not a
* Number or a set type). The target attribute of the comparison must be of type String or Binary (not a
* Number or a set type).
*
*
* -
*
* BETWEEN : Greater than or equal to the first value, and less than or equal to the second
* value.
*
*
* AttributeValueList must contain two AttributeValue elements of the same type, either
* String, Number, or Binary (not a set type). A target attribute matches if the target value is greater
* than, or equal to, the first element and less than, or equal to, the second element. If an item contains
* an AttributeValue element of a different type than the one provided in the request, the value does
* not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also,
* {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
*
*
*
*
*
*
* For usage examples of AttributeValueList and ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide.
*/
public java.util.Map getKeyConditions() {
return keyConditions;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use KeyConditionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* The selection criteria for the query. For a query on a table, you can have conditions only on the table primary
* key attributes. You must provide the partition key name and value as an EQ condition. You can
* optionally provide a second condition, referring to the sort key.
*
*
*
* If you don't provide a sort key condition, all of the items that match the partition key will be retrieved. If a
* FilterExpression or QueryFilter is present, it will be applied after the items are retrieved.
*
*
*
* For a query on an index, you can have conditions only on the index key attributes. You must provide the index
* partition key name and value as an EQ condition. You can optionally provide a second condition,
* referring to the index sort key.
*
*
* Each KeyConditions element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the ComparisonOperator being used.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes, for example, equals, greater than, less than,
* and so on.
*
*
* For KeyConditions, only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* The following are descriptions of these comparison operators.
*
*
* -
*
* EQ : Equal.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one specified in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
*
*
* -
*
* LE : Less than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* LT : Less than.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one provided in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GE : Greater than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GT : Greater than.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* BEGINS_WITH : Checks for a prefix.
*
*
* AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a
* set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type).
*
*
* -
*
* BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
*
*
* AttributeValueList must contain two AttributeValue elements of the same type, either String,
* Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to,
* the first element and less than, or equal to, the second element. If an item contains an AttributeValue
* element of a different type than the one provided in the request, the value does not match. For example,
* {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare
* to {"NS":["6", "2", "1"]}
*
*
*
*
*
*
* For usage examples of AttributeValueList and ComparisonOperator, see Legacy
* Conditional Parameters in the Amazon DynamoDB Developer Guide.
*
*
* @param keyConditions
*
* This is a legacy parameter, for backward compatibility. New applications should use
* KeyConditionExpression instead. Do not combine legacy parameters and expression parameters in a
* single API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* The selection criteria for the query. For a query on a table, you can have conditions only on the table
* primary key attributes. You must provide the partition key name and value as an EQ condition.
* You can optionally provide a second condition, referring to the sort key.
*
*
*
* If you don't provide a sort key condition, all of the items that match the partition key will be
* retrieved. If a FilterExpression or QueryFilter is present, it will be applied after the
* items are retrieved.
*
*
*
* For a query on an index, you can have conditions only on the index key attributes. You must provide the
* index partition key name and value as an EQ condition. You can optionally provide a second
* condition, referring to the index sort key.
*
*
* Each KeyConditions element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of
* values in the list depends on the ComparisonOperator being used.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values.
* For example, a is greater than A, and a is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
*
* For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes, for example, equals, greater than,
* less than, and so on.
*
*
* For KeyConditions, only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* The following are descriptions of these comparison operators.
*
*
* -
*
* EQ : Equal.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one
* specified in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
*
*
* -
*
* LE : Less than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than the
* one provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* LT : Less than.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one
* provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* GE : Greater than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than the
* one provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* GT : Greater than.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than the
* one provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* BEGINS_WITH : Checks for a prefix.
*
*
* AttributeValueList can contain only one AttributeValue of type String or Binary (not a
* Number or a set type). The target attribute of the comparison must be of type String or Binary (not a
* Number or a set type).
*
*
* -
*
* BETWEEN : Greater than or equal to the first value, and less than or equal to the second
* value.
*
*
* AttributeValueList must contain two AttributeValue elements of the same type, either String,
* Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or
* equal to, the first element and less than, or equal to, the second element. If an item contains an
* AttributeValue element of a different type than the one provided in the request, the value does not
* match. For example, {"S":"6"} does not compare to {"N":"6"}. Also,
* {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
*
*
*
*
*
*
* For usage examples of AttributeValueList and ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide.
*/
public void setKeyConditions(java.util.Map keyConditions) {
this.keyConditions = keyConditions;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use KeyConditionExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* The selection criteria for the query. For a query on a table, you can have conditions only on the table primary
* key attributes. You must provide the partition key name and value as an EQ condition. You can
* optionally provide a second condition, referring to the sort key.
*
*
*
* If you don't provide a sort key condition, all of the items that match the partition key will be retrieved. If a
* FilterExpression or QueryFilter is present, it will be applied after the items are retrieved.
*
*
*
* For a query on an index, you can have conditions only on the index key attributes. You must provide the index
* partition key name and value as an EQ condition. You can optionally provide a second condition,
* referring to the index sort key.
*
*
* Each KeyConditions element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the ComparisonOperator being used.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes, for example, equals, greater than, less than,
* and so on.
*
*
* For KeyConditions, only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* The following are descriptions of these comparison operators.
*
*
* -
*
* EQ : Equal.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one specified in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
*
*
* -
*
* LE : Less than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* LT : Less than.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set
* type). If an item contains an AttributeValue element of a different type than the one provided in the
* request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}.
* Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GE : Greater than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* GT : Greater than.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one provided
* in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
*
*
* -
*
* BEGINS_WITH : Checks for a prefix.
*
*
* AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a
* set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type).
*
*
* -
*
* BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
*
*
* AttributeValueList must contain two AttributeValue elements of the same type, either String,
* Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to,
* the first element and less than, or equal to, the second element. If an item contains an AttributeValue
* element of a different type than the one provided in the request, the value does not match. For example,
* {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare
* to {"NS":["6", "2", "1"]}
*
*
*
*
*
*
* For usage examples of AttributeValueList and ComparisonOperator, see Legacy
* Conditional Parameters in the Amazon DynamoDB Developer Guide.
*
*
* @param keyConditions
*
* This is a legacy parameter, for backward compatibility. New applications should use
* KeyConditionExpression instead. Do not combine legacy parameters and expression parameters in a
* single API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* The selection criteria for the query. For a query on a table, you can have conditions only on the table
* primary key attributes. You must provide the partition key name and value as an EQ condition.
* You can optionally provide a second condition, referring to the sort key.
*
*
*
* If you don't provide a sort key condition, all of the items that match the partition key will be
* retrieved. If a FilterExpression or QueryFilter is present, it will be applied after the
* items are retrieved.
*
*
*
* For a query on an index, you can have conditions only on the index key attributes. You must provide the
* index partition key name and value as an EQ condition. You can optionally provide a second
* condition, referring to the index sort key.
*
*
* Each KeyConditions element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of
* values in the list depends on the ComparisonOperator being used.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values.
* For example, a is greater than A, and a is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
*
* For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes, for example, equals, greater than,
* less than, and so on.
*
*
* For KeyConditions, only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* The following are descriptions of these comparison operators.
*
*
* -
*
* EQ : Equal.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one
* specified in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
*
*
* -
*
* LE : Less than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than the
* one provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* LT : Less than.
*
*
* AttributeValueList can contain only one AttributeValue of type String, Number, or Binary
* (not a set type). If an item contains an AttributeValue element of a different type than the one
* provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* GE : Greater than or equal.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than the
* one provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* GT : Greater than.
*
*
* AttributeValueList can contain only one AttributeValue element of type String, Number, or
* Binary (not a set type). If an item contains an AttributeValue element of a different type than the
* one provided in the request, the value does not match. For example, {"S":"6"} does not equal
* {"N":"6"}. Also, {"N":"6"} does not compare to
* {"NS":["6", "2", "1"]}.
*
*
* -
*
* BEGINS_WITH : Checks for a prefix.
*
*
* AttributeValueList can contain only one AttributeValue of type String or Binary (not a
* Number or a set type). The target attribute of the comparison must be of type String or Binary (not a
* Number or a set type).
*
*
* -
*
* BETWEEN : Greater than or equal to the first value, and less than or equal to the second
* value.
*
*
* AttributeValueList must contain two AttributeValue elements of the same type, either String,
* Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or
* equal to, the first element and less than, or equal to, the second element. If an item contains an
* AttributeValue element of a different type than the one provided in the request, the value does not
* match. For example, {"S":"6"} does not compare to {"N":"6"}. Also,
* {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
*
*
*
*
*
*
* For usage examples of AttributeValueList and ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withKeyConditions(java.util.Map keyConditions) {
setKeyConditions(keyConditions);
return this;
}
public QueryRequest addKeyConditionsEntry(String key, Condition value) {
if (null == this.keyConditions) {
this.keyConditions = new java.util.HashMap();
}
if (this.keyConditions.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.keyConditions.put(key, value);
return this;
}
/**
* Removes all the entries added into KeyConditions.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest clearKeyConditionsEntries() {
this.keyConditions = null;
return this;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A condition that evaluates the query results after the items are read and returns only the desired values.
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* A QueryFilter is applied after the items have already been read; the process of filtering does not consume
* any additional read capacity units.
*
*
*
* If you provide more than one condition in the QueryFilter map, then by default all of the conditions must
* evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator
* parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to
* true, rather than all of them.)
*
*
* Note that QueryFilter does not allow key attributes. You cannot define a filter condition on a partition
* key or a sort key.
*
*
* Each QueryFilter element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the operator specified in ComparisonOperator.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For type Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* For information on specifying data types in JSON, see JSON Data Format in
* the Amazon DynamoDB Developer Guide.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes. For example, equals, greater than, less than,
* etc.
*
*
* The following comparison operators are available:
*
*
* EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
*
*
* For complete descriptions of all comparison operators, see the Condition data type.
*
*
*
*
* @return
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A condition that evaluates the query results after the items are read and returns only the desired
* values.
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* A QueryFilter is applied after the items have already been read; the process of filtering does not
* consume any additional read capacity units.
*
*
*
* If you provide more than one condition in the QueryFilter map, then by default all of the
* conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the
* ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of
* the conditions must evaluate to true, rather than all of them.)
*
*
* Note that QueryFilter does not allow key attributes. You cannot define a filter condition on a
* partition key or a sort key.
*
*
* Each QueryFilter element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of
* values in the list depends on the operator specified in ComparisonOperator.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values.
* For example, a is greater than A, and a is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
*
* For type Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* For information on specifying data types in JSON, see JSON Data
* Format in the Amazon DynamoDB Developer Guide.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes. For example, equals, greater than,
* less than, etc.
*
*
* The following comparison operators are available:
*
*
* EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
*
*
* For complete descriptions of all comparison operators, see the Condition
* data type.
*
*
*/
public java.util.Map getQueryFilter() {
return queryFilter;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A condition that evaluates the query results after the items are read and returns only the desired values.
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* A QueryFilter is applied after the items have already been read; the process of filtering does not consume
* any additional read capacity units.
*
*
*
* If you provide more than one condition in the QueryFilter map, then by default all of the conditions must
* evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator
* parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to
* true, rather than all of them.)
*
*
* Note that QueryFilter does not allow key attributes. You cannot define a filter condition on a partition
* key or a sort key.
*
*
* Each QueryFilter element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the operator specified in ComparisonOperator.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For type Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* For information on specifying data types in JSON, see JSON Data Format in
* the Amazon DynamoDB Developer Guide.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes. For example, equals, greater than, less than,
* etc.
*
*
* The following comparison operators are available:
*
*
* EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
*
*
* For complete descriptions of all comparison operators, see the Condition data type.
*
*
*
*
* @param queryFilter
*
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A condition that evaluates the query results after the items are read and returns only the desired values.
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* A QueryFilter is applied after the items have already been read; the process of filtering does not
* consume any additional read capacity units.
*
*
*
* If you provide more than one condition in the QueryFilter map, then by default all of the
* conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the
* ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of
* the conditions must evaluate to true, rather than all of them.)
*
*
* Note that QueryFilter does not allow key attributes. You cannot define a filter condition on a
* partition key or a sort key.
*
*
* Each QueryFilter element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of
* values in the list depends on the operator specified in ComparisonOperator.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values.
* For example, a is greater than A, and a is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
*
* For type Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* For information on specifying data types in JSON, see JSON Data
* Format in the Amazon DynamoDB Developer Guide.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes. For example, equals, greater than,
* less than, etc.
*
*
* The following comparison operators are available:
*
*
* EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
*
*
* For complete descriptions of all comparison operators, see the Condition data
* type.
*
*
*/
public void setQueryFilter(java.util.Map queryFilter) {
this.queryFilter = queryFilter;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A condition that evaluates the query results after the items are read and returns only the desired values.
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* A QueryFilter is applied after the items have already been read; the process of filtering does not consume
* any additional read capacity units.
*
*
*
* If you provide more than one condition in the QueryFilter map, then by default all of the conditions must
* evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator
* parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to
* true, rather than all of them.)
*
*
* Note that QueryFilter does not allow key attributes. You cannot define a filter condition on a partition
* key or a sort key.
*
*
* Each QueryFilter element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values
* in the list depends on the operator specified in ComparisonOperator.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values. For
* example, a is greater than A, and a is greater than B. For a
* list of code values, see http://en.wikipedia
* .org/wiki/ASCII#ASCII_printable_characters.
*
*
* For type Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* For information on specifying data types in JSON, see JSON Data Format in
* the Amazon DynamoDB Developer Guide.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes. For example, equals, greater than, less than,
* etc.
*
*
* The following comparison operators are available:
*
*
* EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
*
*
* For complete descriptions of all comparison operators, see the Condition data type.
*
*
*
*
* @param queryFilter
*
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A condition that evaluates the query results after the items are read and returns only the desired values.
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* A QueryFilter is applied after the items have already been read; the process of filtering does not
* consume any additional read capacity units.
*
*
*
* If you provide more than one condition in the QueryFilter map, then by default all of the
* conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the
* ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of
* the conditions must evaluate to true, rather than all of them.)
*
*
* Note that QueryFilter does not allow key attributes. You cannot define a filter condition on a
* partition key or a sort key.
*
*
* Each QueryFilter element consists of an attribute name to compare, along with the following:
*
*
* -
*
* AttributeValueList - One or more values to evaluate against the supplied attribute. The number of
* values in the list depends on the operator specified in ComparisonOperator.
*
*
* For type Number, value comparisons are numeric.
*
*
* String value comparisons for greater than, equals, or less than are based on ASCII character code values.
* For example, a is greater than A, and a is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
*
* For type Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
*
*
* For information on specifying data types in JSON, see JSON Data
* Format in the Amazon DynamoDB Developer Guide.
*
*
* -
*
* ComparisonOperator - A comparator for evaluating attributes. For example, equals, greater than,
* less than, etc.
*
*
* The following comparison operators are available:
*
*
* EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
*
*
* For complete descriptions of all comparison operators, see the Condition data
* type.
*
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withQueryFilter(java.util.Map queryFilter) {
setQueryFilter(queryFilter);
return this;
}
public QueryRequest addQueryFilterEntry(String key, Condition value) {
if (null == this.queryFilter) {
this.queryFilter = new java.util.HashMap();
}
if (this.queryFilter.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.queryFilter.put(key, value);
return this;
}
/**
* Removes all the entries added into QueryFilter.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest clearQueryFilterEntries() {
this.queryFilter = null;
return this;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* @param conditionalOperator
*
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to
* true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
* @see ConditionalOperator
*/
public void setConditionalOperator(String conditionalOperator) {
this.conditionalOperator = conditionalOperator;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* @return
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to
* true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
* @see ConditionalOperator
*/
public String getConditionalOperator() {
return this.conditionalOperator;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* @param conditionalOperator
*
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to
* true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
* @return Returns a reference to this object so that method calls can be chained together.
* @see ConditionalOperator
*/
public QueryRequest withConditionalOperator(String conditionalOperator) {
setConditionalOperator(conditionalOperator);
return this;
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* @param conditionalOperator
*
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to
* true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
* @see ConditionalOperator
*/
public void setConditionalOperator(ConditionalOperator conditionalOperator) {
this.conditionalOperator = conditionalOperator.toString();
}
/**
*
*
* This is a legacy parameter, for backward compatibility. New applications should use FilterExpression
* instead. Do not combine legacy parameters and expression parameters in a single API call; otherwise, DynamoDB
* will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
*
*
* @param conditionalOperator
*
* This is a legacy parameter, for backward compatibility. New applications should use
* FilterExpression instead. Do not combine legacy parameters and expression parameters in a single
* API call; otherwise, DynamoDB will return a ValidationException exception.
*
*
*
* A logical operator to apply to the conditions in a QueryFilter map:
*
*
* -
*
* AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
*
*
* -
*
* OR - If at least one of the conditions evaluate to true, then the entire map evaluates to
* true.
*
*
*
*
* If you omit ConditionalOperator, then AND is the default.
*
*
* The operation will succeed only if the entire map evaluates to true.
*
*
*
* This parameter does not support attributes of type List or Map.
*
* @return Returns a reference to this object so that method calls can be chained together.
* @see ConditionalOperator
*/
public QueryRequest withConditionalOperator(ConditionalOperator conditionalOperator) {
setConditionalOperator(conditionalOperator);
return this;
}
/**
*
* Specifies the order for index traversal: If true (default), the traversal is performed in ascending
* order; if false, the traversal is performed in descending order.
*
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is
* Number, the results are stored in numeric order. For type String, the results are stored in order of ASCII
* character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they are
* stored (by sort key value). This is the default behavior. If ScanIndexForward is false,
* DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
*
*
* @param scanIndexForward
* Specifies the order for index traversal: If true (default), the traversal is performed in
* ascending order; if false, the traversal is performed in descending order.
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type
* is Number, the results are stored in numeric order. For type String, the results are stored in order of
* ASCII character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they
* are stored (by sort key value). This is the default behavior. If ScanIndexForward is
* false, DynamoDB reads the results in reverse order by sort key value, and then returns the
* results to the client.
*/
public void setScanIndexForward(Boolean scanIndexForward) {
this.scanIndexForward = scanIndexForward;
}
/**
*
* Specifies the order for index traversal: If true (default), the traversal is performed in ascending
* order; if false, the traversal is performed in descending order.
*
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is
* Number, the results are stored in numeric order. For type String, the results are stored in order of ASCII
* character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they are
* stored (by sort key value). This is the default behavior. If ScanIndexForward is false,
* DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
*
*
* @return Specifies the order for index traversal: If true (default), the traversal is performed in
* ascending order; if false, the traversal is performed in descending order.
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type
* is Number, the results are stored in numeric order. For type String, the results are stored in order of
* ASCII character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they
* are stored (by sort key value). This is the default behavior. If ScanIndexForward is
* false, DynamoDB reads the results in reverse order by sort key value, and then returns the
* results to the client.
*/
public Boolean getScanIndexForward() {
return this.scanIndexForward;
}
/**
*
* Specifies the order for index traversal: If true (default), the traversal is performed in ascending
* order; if false, the traversal is performed in descending order.
*
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is
* Number, the results are stored in numeric order. For type String, the results are stored in order of ASCII
* character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they are
* stored (by sort key value). This is the default behavior. If ScanIndexForward is false,
* DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
*
*
* @param scanIndexForward
* Specifies the order for index traversal: If true (default), the traversal is performed in
* ascending order; if false, the traversal is performed in descending order.
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type
* is Number, the results are stored in numeric order. For type String, the results are stored in order of
* ASCII character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they
* are stored (by sort key value). This is the default behavior. If ScanIndexForward is
* false, DynamoDB reads the results in reverse order by sort key value, and then returns the
* results to the client.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withScanIndexForward(Boolean scanIndexForward) {
setScanIndexForward(scanIndexForward);
return this;
}
/**
*
* Specifies the order for index traversal: If true (default), the traversal is performed in ascending
* order; if false, the traversal is performed in descending order.
*
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is
* Number, the results are stored in numeric order. For type String, the results are stored in order of ASCII
* character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they are
* stored (by sort key value). This is the default behavior. If ScanIndexForward is false,
* DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
*
*
* @return Specifies the order for index traversal: If true (default), the traversal is performed in
* ascending order; if false, the traversal is performed in descending order.
*
* Items with the same partition key value are stored in sorted order by sort key. If the sort key data type
* is Number, the results are stored in numeric order. For type String, the results are stored in order of
* ASCII character code values. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
*
*
* If ScanIndexForward is true, DynamoDB returns the results in the order in which they
* are stored (by sort key value). This is the default behavior. If ScanIndexForward is
* false, DynamoDB reads the results in reverse order by sort key value, and then returns the
* results to the client.
*/
public Boolean isScanIndexForward() {
return this.scanIndexForward;
}
/**
*
* The primary key of the first item that this operation will evaluate. Use the value that was returned for
* LastEvaluatedKey in the previous operation.
*
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
*
*
* @return The primary key of the first item that this operation will evaluate. Use the value that was returned for
* LastEvaluatedKey in the previous operation.
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are
* allowed.
*/
public java.util.Map getExclusiveStartKey() {
return exclusiveStartKey;
}
/**
*
* The primary key of the first item that this operation will evaluate. Use the value that was returned for
* LastEvaluatedKey in the previous operation.
*
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
*
*
* @param exclusiveStartKey
* The primary key of the first item that this operation will evaluate. Use the value that was returned for
* LastEvaluatedKey in the previous operation.
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are
* allowed.
*/
public void setExclusiveStartKey(java.util.Map exclusiveStartKey) {
this.exclusiveStartKey = exclusiveStartKey;
}
/**
*
* The primary key of the first item that this operation will evaluate. Use the value that was returned for
* LastEvaluatedKey in the previous operation.
*
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
*
*
* @param exclusiveStartKey
* The primary key of the first item that this operation will evaluate. Use the value that was returned for
* LastEvaluatedKey in the previous operation.
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are
* allowed.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withExclusiveStartKey(java.util.Map exclusiveStartKey) {
setExclusiveStartKey(exclusiveStartKey);
return this;
}
public QueryRequest addExclusiveStartKeyEntry(String key, AttributeValue value) {
if (null == this.exclusiveStartKey) {
this.exclusiveStartKey = new java.util.HashMap();
}
if (this.exclusiveStartKey.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.exclusiveStartKey.put(key, value);
return this;
}
/**
* Removes all the entries added into ExclusiveStartKey.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest clearExclusiveStartKeyEntries() {
this.exclusiveStartKey = null;
return this;
}
/**
* @param returnConsumedCapacity
* @see ReturnConsumedCapacity
*/
public void setReturnConsumedCapacity(String returnConsumedCapacity) {
this.returnConsumedCapacity = returnConsumedCapacity;
}
/**
* @return
* @see ReturnConsumedCapacity
*/
public String getReturnConsumedCapacity() {
return this.returnConsumedCapacity;
}
/**
* @param returnConsumedCapacity
* @return Returns a reference to this object so that method calls can be chained together.
* @see ReturnConsumedCapacity
*/
public QueryRequest withReturnConsumedCapacity(String returnConsumedCapacity) {
setReturnConsumedCapacity(returnConsumedCapacity);
return this;
}
/**
* @param returnConsumedCapacity
* @see ReturnConsumedCapacity
*/
public void setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity) {
this.returnConsumedCapacity = returnConsumedCapacity.toString();
}
/**
* @param returnConsumedCapacity
* @return Returns a reference to this object so that method calls can be chained together.
* @see ReturnConsumedCapacity
*/
public QueryRequest withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity) {
setReturnConsumedCapacity(returnConsumedCapacity);
return this;
}
/**
*
* A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars,
* sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
*
*
* If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are
* not found, they will not appear in the result.
*
*
* For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
*
* ProjectionExpression replaces the legacy AttributesToGet parameter.
*
*
*
* @param projectionExpression
* A string that identifies one or more attributes to retrieve from the table. These attributes can include
* scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by
* commas.
*
* If no attribute names are specified, then all attributes will be returned. If any of the requested
* attributes are not found, they will not appear in the result.
*
*
* For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
*
* ProjectionExpression replaces the legacy AttributesToGet parameter.
*
*/
public void setProjectionExpression(String projectionExpression) {
this.projectionExpression = projectionExpression;
}
/**
*
* A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars,
* sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
*
*
* If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are
* not found, they will not appear in the result.
*
*
* For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
*
* ProjectionExpression replaces the legacy AttributesToGet parameter.
*
*
*
* @return A string that identifies one or more attributes to retrieve from the table. These attributes can include
* scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by
* commas.
*
* If no attribute names are specified, then all attributes will be returned. If any of the requested
* attributes are not found, they will not appear in the result.
*
*
* For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
*
* ProjectionExpression replaces the legacy AttributesToGet parameter.
*
*/
public String getProjectionExpression() {
return this.projectionExpression;
}
/**
*
* A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars,
* sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
*
*
* If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are
* not found, they will not appear in the result.
*
*
* For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
*
* ProjectionExpression replaces the legacy AttributesToGet parameter.
*
*
*
* @param projectionExpression
* A string that identifies one or more attributes to retrieve from the table. These attributes can include
* scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by
* commas.
*
* If no attribute names are specified, then all attributes will be returned. If any of the requested
* attributes are not found, they will not appear in the result.
*
*
* For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
*
* ProjectionExpression replaces the legacy AttributesToGet parameter.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withProjectionExpression(String projectionExpression) {
setProjectionExpression(projectionExpression);
return this;
}
/**
*
* A string that contains conditions that DynamoDB applies after the Query operation, but before the data is
* returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
*
*
*
* A FilterExpression is applied after the items have already been read; the process of filtering does not
* consume any additional read capacity units.
*
*
*
* For more information, see Filter
* Expressions in the Amazon DynamoDB Developer Guide.
*
*
*
* FilterExpression replaces the legacy QueryFilter and ConditionalOperator parameters.
*
*
*
* @param filterExpression
* A string that contains conditions that DynamoDB applies after the Query operation, but before the
* data is returned to you. Items that do not satisfy the FilterExpression criteria are not
* returned.
*
* A FilterExpression is applied after the items have already been read; the process of filtering does
* not consume any additional read capacity units.
*
*
*
* For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
*
*
*
* FilterExpression replaces the legacy QueryFilter and ConditionalOperator parameters.
*
*/
public void setFilterExpression(String filterExpression) {
this.filterExpression = filterExpression;
}
/**
*
* A string that contains conditions that DynamoDB applies after the Query operation, but before the data is
* returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
*
*
*
* A FilterExpression is applied after the items have already been read; the process of filtering does not
* consume any additional read capacity units.
*
*
*
* For more information, see Filter
* Expressions in the Amazon DynamoDB Developer Guide.
*
*
*
* FilterExpression replaces the legacy QueryFilter and ConditionalOperator parameters.
*
*
*
* @return A string that contains conditions that DynamoDB applies after the Query operation, but before the
* data is returned to you. Items that do not satisfy the FilterExpression criteria are not
* returned.
*
* A FilterExpression is applied after the items have already been read; the process of filtering
* does not consume any additional read capacity units.
*
*
*
* For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
*
*
*
* FilterExpression replaces the legacy QueryFilter and ConditionalOperator parameters.
*
*/
public String getFilterExpression() {
return this.filterExpression;
}
/**
*
* A string that contains conditions that DynamoDB applies after the Query operation, but before the data is
* returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
*
*
*
* A FilterExpression is applied after the items have already been read; the process of filtering does not
* consume any additional read capacity units.
*
*
*
* For more information, see Filter
* Expressions in the Amazon DynamoDB Developer Guide.
*
*
*
* FilterExpression replaces the legacy QueryFilter and ConditionalOperator parameters.
*
*
*
* @param filterExpression
* A string that contains conditions that DynamoDB applies after the Query operation, but before the
* data is returned to you. Items that do not satisfy the FilterExpression criteria are not
* returned.
*
* A FilterExpression is applied after the items have already been read; the process of filtering does
* not consume any additional read capacity units.
*
*
*
* For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
*
*
*
* FilterExpression replaces the legacy QueryFilter and ConditionalOperator parameters.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withFilterExpression(String filterExpression) {
setFilterExpression(filterExpression);
return this;
}
/**
*
* The condition that specifies the key value(s) for items to be retrieved by the Query action.
*
*
* The condition must perform an equality test on a single partition key value. The condition can also perform one
* of several comparison tests on a single sort key value. Query can use KeyConditionExpression to
* retrieve one item with a given partition key value and sort key value, or several items that have the same
* partition key value but different sort key values.
*
*
* The partition key equality test is required, and must be specified in the following format:
*
*
* partitionKeyName = :partitionkeyval
*
*
* If you also want to provide a condition for the sort key, it must be combined using AND with the condition
* for the sort key. Following is an example, using the = comparison operator for the sort key:
*
*
* partitionKeyName = :partitionkeyval AND sortKeyName =
* :sortkeyval
*
*
* Valid comparisons for the sort key condition are as follows:
*
*
* -
*
* sortKeyName = :sortkeyval - true if the sort key value is equal to
* :sortkeyval.
*
*
* -
*
* sortKeyName < :sortkeyval - true if the sort key value is less than
* :sortkeyval.
*
*
* -
*
* sortKeyName <= :sortkeyval - true if the sort key value is less than or equal
* to :sortkeyval.
*
*
* -
*
* sortKeyName > :sortkeyval - true if the sort key value is greater than
* :sortkeyval.
*
*
* -
*
* sortKeyName >= :sortkeyval - true if the sort key value is greater than or
* equal to :sortkeyval.
*
*
* -
*
* sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if
* the sort key value is greater than or equal to :sortkeyval1, and less than or equal to
* :sortkeyval2.
*
*
* -
*
* begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value
* begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note
* that the function name begins_with is case-sensitive.
*
*
*
*
* Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and
* :sortval with actual values at runtime.
*
*
* You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key
* and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a
* DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error
* because Size is a reserved word:
*
*
* -
*
* Size = :myval
*
*
*
*
* To work around this, define a placeholder (such a #S) to represent the attribute name Size.
* KeyConditionExpression then is as follows:
*
*
* -
*
* #S = :myval
*
*
*
*
* For a list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide.
*
*
* For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using
* Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
*
*
*
* KeyConditionExpression replaces the legacy KeyConditions parameter.
*
*
*
* @param keyConditionExpression
* The condition that specifies the key value(s) for items to be retrieved by the Query action.
*
* The condition must perform an equality test on a single partition key value. The condition can also
* perform one of several comparison tests on a single sort key value. Query can use
* KeyConditionExpression to retrieve one item with a given partition key value and sort key value, or
* several items that have the same partition key value but different sort key values.
*
*
* The partition key equality test is required, and must be specified in the following format:
*
*
* partitionKeyName = :partitionkeyval
*
*
* If you also want to provide a condition for the sort key, it must be combined using AND with the
* condition for the sort key. Following is an example, using the = comparison operator for the sort
* key:
*
*
* partitionKeyName = :partitionkeyval AND sortKeyName
* = :sortkeyval
*
*
* Valid comparisons for the sort key condition are as follows:
*
*
* -
*
* sortKeyName = :sortkeyval - true if the sort key value is equal to
* :sortkeyval.
*
*
* -
*
* sortKeyName < :sortkeyval - true if the sort key value is less than
* :sortkeyval.
*
*
* -
*
* sortKeyName <= :sortkeyval - true if the sort key value is less than
* or equal to :sortkeyval.
*
*
* -
*
* sortKeyName > :sortkeyval - true if the sort key value is greater than
* :sortkeyval.
*
*
* -
*
* sortKeyName >= :sortkeyval - true if the sort key value is greater
* than or equal to :sortkeyval.
*
*
* -
*
* sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 -
* true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal
* to :sortkeyval2.
*
*
* -
*
* begins_with ( sortKeyName, :sortkeyval ) - true if the sort key
* value begins with a particular operand. (You cannot use this function with a sort key that is of type
* Number.) Note that the function name begins_with is case-sensitive.
*
*
*
*
* Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval
* and :sortval with actual values at runtime.
*
*
* You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition
* key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts
* with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes
* an error because Size is a reserved word:
*
*
* -
*
* Size = :myval
*
*
*
*
* To work around this, define a placeholder (such a #S) to represent the attribute name
* Size. KeyConditionExpression then is as follows:
*
*
* -
*
* #S = :myval
*
*
*
*
* For a list of reserved words, see Reserved
* Words in the Amazon DynamoDB Developer Guide.
*
*
* For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using
* Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
*
*
*
* KeyConditionExpression replaces the legacy KeyConditions parameter.
*
*/
public void setKeyConditionExpression(String keyConditionExpression) {
this.keyConditionExpression = keyConditionExpression;
}
/**
*
* The condition that specifies the key value(s) for items to be retrieved by the Query action.
*
*
* The condition must perform an equality test on a single partition key value. The condition can also perform one
* of several comparison tests on a single sort key value. Query can use KeyConditionExpression to
* retrieve one item with a given partition key value and sort key value, or several items that have the same
* partition key value but different sort key values.
*
*
* The partition key equality test is required, and must be specified in the following format:
*
*
* partitionKeyName = :partitionkeyval
*
*
* If you also want to provide a condition for the sort key, it must be combined using AND with the condition
* for the sort key. Following is an example, using the = comparison operator for the sort key:
*
*
* partitionKeyName = :partitionkeyval AND sortKeyName =
* :sortkeyval
*
*
* Valid comparisons for the sort key condition are as follows:
*
*
* -
*
* sortKeyName = :sortkeyval - true if the sort key value is equal to
* :sortkeyval.
*
*
* -
*
* sortKeyName < :sortkeyval - true if the sort key value is less than
* :sortkeyval.
*
*
* -
*
* sortKeyName <= :sortkeyval - true if the sort key value is less than or equal
* to :sortkeyval.
*
*
* -
*
* sortKeyName > :sortkeyval - true if the sort key value is greater than
* :sortkeyval.
*
*
* -
*
* sortKeyName >= :sortkeyval - true if the sort key value is greater than or
* equal to :sortkeyval.
*
*
* -
*
* sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if
* the sort key value is greater than or equal to :sortkeyval1, and less than or equal to
* :sortkeyval2.
*
*
* -
*
* begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value
* begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note
* that the function name begins_with is case-sensitive.
*
*
*
*
* Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and
* :sortval with actual values at runtime.
*
*
* You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key
* and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a
* DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error
* because Size is a reserved word:
*
*
* -
*
* Size = :myval
*
*
*
*
* To work around this, define a placeholder (such a #S) to represent the attribute name Size.
* KeyConditionExpression then is as follows:
*
*
* -
*
* #S = :myval
*
*
*
*
* For a list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide.
*
*
* For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using
* Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
*
*
*
* KeyConditionExpression replaces the legacy KeyConditions parameter.
*
*
*
* @return The condition that specifies the key value(s) for items to be retrieved by the Query action.
*
* The condition must perform an equality test on a single partition key value. The condition can also
* perform one of several comparison tests on a single sort key value. Query can use
* KeyConditionExpression to retrieve one item with a given partition key value and sort key value,
* or several items that have the same partition key value but different sort key values.
*
*
* The partition key equality test is required, and must be specified in the following format:
*
*
* partitionKeyName = :partitionkeyval
*
*
* If you also want to provide a condition for the sort key, it must be combined using AND with the
* condition for the sort key. Following is an example, using the = comparison operator for the sort
* key:
*
*
* partitionKeyName = :partitionkeyval AND sortKeyName
* = :sortkeyval
*
*
* Valid comparisons for the sort key condition are as follows:
*
*
* -
*
* sortKeyName = :sortkeyval - true if the sort key value is equal to
* :sortkeyval.
*
*
* -
*
* sortKeyName < :sortkeyval - true if the sort key value is less than
* :sortkeyval.
*
*
* -
*
* sortKeyName <= :sortkeyval - true if the sort key value is less than
* or equal to :sortkeyval.
*
*
* -
*
* sortKeyName > :sortkeyval - true if the sort key value is greater
* than :sortkeyval.
*
*
* -
*
* sortKeyName >= :sortkeyval - true if the sort key value is greater
* than or equal to :sortkeyval.
*
*
* -
*
* sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 -
* true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal
* to :sortkeyval2.
*
*
* -
*
* begins_with ( sortKeyName, :sortkeyval ) - true if the sort key
* value begins with a particular operand. (You cannot use this function with a sort key that is of type
* Number.) Note that the function name begins_with is case-sensitive.
*
*
*
*
* Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval
* and :sortval with actual values at runtime.
*
*
* You can optionally use the ExpressionAttributeNames parameter to replace the names of the
* partition key and sort key with placeholder tokens. This option might be necessary if an attribute name
* conflicts with a DynamoDB reserved word. For example, the following KeyConditionExpression
* parameter causes an error because Size is a reserved word:
*
*
* -
*
* Size = :myval
*
*
*
*
* To work around this, define a placeholder (such a #S) to represent the attribute name
* Size. KeyConditionExpression then is as follows:
*
*
* -
*
* #S = :myval
*
*
*
*
* For a list of reserved words, see Reserved
* Words in the Amazon DynamoDB Developer Guide.
*
*
* For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using
* Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
*
*
*
* KeyConditionExpression replaces the legacy KeyConditions parameter.
*
*/
public String getKeyConditionExpression() {
return this.keyConditionExpression;
}
/**
*
* The condition that specifies the key value(s) for items to be retrieved by the Query action.
*
*
* The condition must perform an equality test on a single partition key value. The condition can also perform one
* of several comparison tests on a single sort key value. Query can use KeyConditionExpression to
* retrieve one item with a given partition key value and sort key value, or several items that have the same
* partition key value but different sort key values.
*
*
* The partition key equality test is required, and must be specified in the following format:
*
*
* partitionKeyName = :partitionkeyval
*
*
* If you also want to provide a condition for the sort key, it must be combined using AND with the condition
* for the sort key. Following is an example, using the = comparison operator for the sort key:
*
*
* partitionKeyName = :partitionkeyval AND sortKeyName =
* :sortkeyval
*
*
* Valid comparisons for the sort key condition are as follows:
*
*
* -
*
* sortKeyName = :sortkeyval - true if the sort key value is equal to
* :sortkeyval.
*
*
* -
*
* sortKeyName < :sortkeyval - true if the sort key value is less than
* :sortkeyval.
*
*
* -
*
* sortKeyName <= :sortkeyval - true if the sort key value is less than or equal
* to :sortkeyval.
*
*
* -
*
* sortKeyName > :sortkeyval - true if the sort key value is greater than
* :sortkeyval.
*
*
* -
*
* sortKeyName >= :sortkeyval - true if the sort key value is greater than or
* equal to :sortkeyval.
*
*
* -
*
* sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if
* the sort key value is greater than or equal to :sortkeyval1, and less than or equal to
* :sortkeyval2.
*
*
* -
*
* begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value
* begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note
* that the function name begins_with is case-sensitive.
*
*
*
*
* Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and
* :sortval with actual values at runtime.
*
*
* You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key
* and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a
* DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error
* because Size is a reserved word:
*
*
* -
*
* Size = :myval
*
*
*
*
* To work around this, define a placeholder (such a #S) to represent the attribute name Size.
* KeyConditionExpression then is as follows:
*
*
* -
*
* #S = :myval
*
*
*
*
* For a list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide.
*
*
* For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using
* Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
*
*
*
* KeyConditionExpression replaces the legacy KeyConditions parameter.
*
*
*
* @param keyConditionExpression
* The condition that specifies the key value(s) for items to be retrieved by the Query action.
*
* The condition must perform an equality test on a single partition key value. The condition can also
* perform one of several comparison tests on a single sort key value. Query can use
* KeyConditionExpression to retrieve one item with a given partition key value and sort key value, or
* several items that have the same partition key value but different sort key values.
*
*
* The partition key equality test is required, and must be specified in the following format:
*
*
* partitionKeyName = :partitionkeyval
*
*
* If you also want to provide a condition for the sort key, it must be combined using AND with the
* condition for the sort key. Following is an example, using the = comparison operator for the sort
* key:
*
*
* partitionKeyName = :partitionkeyval AND sortKeyName
* = :sortkeyval
*
*
* Valid comparisons for the sort key condition are as follows:
*
*
* -
*
* sortKeyName = :sortkeyval - true if the sort key value is equal to
* :sortkeyval.
*
*
* -
*
* sortKeyName < :sortkeyval - true if the sort key value is less than
* :sortkeyval.
*
*
* -
*
* sortKeyName <= :sortkeyval - true if the sort key value is less than
* or equal to :sortkeyval.
*
*
* -
*
* sortKeyName > :sortkeyval - true if the sort key value is greater than
* :sortkeyval.
*
*
* -
*
* sortKeyName >= :sortkeyval - true if the sort key value is greater
* than or equal to :sortkeyval.
*
*
* -
*
* sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 -
* true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal
* to :sortkeyval2.
*
*
* -
*
* begins_with ( sortKeyName, :sortkeyval ) - true if the sort key
* value begins with a particular operand. (You cannot use this function with a sort key that is of type
* Number.) Note that the function name begins_with is case-sensitive.
*
*
*
*
* Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval
* and :sortval with actual values at runtime.
*
*
* You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition
* key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts
* with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes
* an error because Size is a reserved word:
*
*
* -
*
* Size = :myval
*
*
*
*
* To work around this, define a placeholder (such a #S) to represent the attribute name
* Size. KeyConditionExpression then is as follows:
*
*
* -
*
* #S = :myval
*
*
*
*
* For a list of reserved words, see Reserved
* Words in the Amazon DynamoDB Developer Guide.
*
*
* For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using
* Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
*
*
*
* KeyConditionExpression replaces the legacy KeyConditions parameter.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withKeyConditionExpression(String keyConditionExpression) {
setKeyConditionExpression(keyConditionExpression);
return this;
}
/**
*
* One or more substitution tokens for attribute names in an expression. The following are some use cases for using
* ExpressionAttributeNames:
*
*
* -
*
* To access an attribute whose name conflicts with a DynamoDB reserved word.
*
*
* -
*
* To create a placeholder for repeating occurrences of an attribute name in an expression.
*
*
* -
*
* To prevent special characters in an attribute name from being misinterpreted in an expression.
*
*
*
*
* Use the # character in an expression to dereference an attribute name. For example, consider the following
* attribute name:
*
*
* -
*
* Percentile
*
*
*
*
* The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For
* the complete list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
* ExpressionAttributeNames:
*
*
* -
*
* {"#P":"Percentile"}
*
*
*
*
* You could then use this substitution in an expression, as in this example:
*
*
* -
*
* #P = :val
*
*
*
*
*
* Tokens that begin with the : character are expression attribute values, which are placeholders for
* the actual value at runtime.
*
*
*
* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
* @return One or more substitution tokens for attribute names in an expression. The following are some use cases
* for using ExpressionAttributeNames:
*
* -
*
* To access an attribute whose name conflicts with a DynamoDB reserved word.
*
*
* -
*
* To create a placeholder for repeating occurrences of an attribute name in an expression.
*
*
* -
*
* To prevent special characters in an attribute name from being misinterpreted in an expression.
*
*
*
*
* Use the # character in an expression to dereference an attribute name. For example, consider the
* following attribute name:
*
*
* -
*
* Percentile
*
*
*
*
* The name of this attribute conflicts with a reserved word, so it cannot be used directly in an
* expression. (For the complete list of reserved words, see Reserved
* Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
* following for ExpressionAttributeNames:
*
*
* -
*
* {"#P":"Percentile"}
*
*
*
*
* You could then use this substitution in an expression, as in this example:
*
*
* -
*
* #P = :val
*
*
*
*
*
* Tokens that begin with the : character are expression attribute values, which are
* placeholders for the actual value at runtime.
*
*
*
* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*/
public java.util.Map getExpressionAttributeNames() {
return expressionAttributeNames;
}
/**
*
* One or more substitution tokens for attribute names in an expression. The following are some use cases for using
* ExpressionAttributeNames:
*
*
* -
*
* To access an attribute whose name conflicts with a DynamoDB reserved word.
*
*
* -
*
* To create a placeholder for repeating occurrences of an attribute name in an expression.
*
*
* -
*
* To prevent special characters in an attribute name from being misinterpreted in an expression.
*
*
*
*
* Use the # character in an expression to dereference an attribute name. For example, consider the following
* attribute name:
*
*
* -
*
* Percentile
*
*
*
*
* The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For
* the complete list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
* ExpressionAttributeNames:
*
*
* -
*
* {"#P":"Percentile"}
*
*
*
*
* You could then use this substitution in an expression, as in this example:
*
*
* -
*
* #P = :val
*
*
*
*
*
* Tokens that begin with the : character are expression attribute values, which are placeholders for
* the actual value at runtime.
*
*
*
* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
* @param expressionAttributeNames
* One or more substitution tokens for attribute names in an expression. The following are some use cases for
* using ExpressionAttributeNames:
*
* -
*
* To access an attribute whose name conflicts with a DynamoDB reserved word.
*
*
* -
*
* To create a placeholder for repeating occurrences of an attribute name in an expression.
*
*
* -
*
* To prevent special characters in an attribute name from being misinterpreted in an expression.
*
*
*
*
* Use the # character in an expression to dereference an attribute name. For example, consider the
* following attribute name:
*
*
* -
*
* Percentile
*
*
*
*
* The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression.
* (For the complete list of reserved words, see Reserved
* Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
* following for ExpressionAttributeNames:
*
*
* -
*
* {"#P":"Percentile"}
*
*
*
*
* You could then use this substitution in an expression, as in this example:
*
*
* -
*
* #P = :val
*
*
*
*
*
* Tokens that begin with the : character are expression attribute values, which are
* placeholders for the actual value at runtime.
*
*
*
* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*/
public void setExpressionAttributeNames(java.util.Map expressionAttributeNames) {
this.expressionAttributeNames = expressionAttributeNames;
}
/**
*
* One or more substitution tokens for attribute names in an expression. The following are some use cases for using
* ExpressionAttributeNames:
*
*
* -
*
* To access an attribute whose name conflicts with a DynamoDB reserved word.
*
*
* -
*
* To create a placeholder for repeating occurrences of an attribute name in an expression.
*
*
* -
*
* To prevent special characters in an attribute name from being misinterpreted in an expression.
*
*
*
*
* Use the # character in an expression to dereference an attribute name. For example, consider the following
* attribute name:
*
*
* -
*
* Percentile
*
*
*
*
* The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For
* the complete list of reserved words, see Reserved Words in
* the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
* ExpressionAttributeNames:
*
*
* -
*
* {"#P":"Percentile"}
*
*
*
*
* You could then use this substitution in an expression, as in this example:
*
*
* -
*
* #P = :val
*
*
*
*
*
* Tokens that begin with the : character are expression attribute values, which are placeholders for
* the actual value at runtime.
*
*
*
* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
*
*
* @param expressionAttributeNames
* One or more substitution tokens for attribute names in an expression. The following are some use cases for
* using ExpressionAttributeNames:
*
* -
*
* To access an attribute whose name conflicts with a DynamoDB reserved word.
*
*
* -
*
* To create a placeholder for repeating occurrences of an attribute name in an expression.
*
*
* -
*
* To prevent special characters in an attribute name from being misinterpreted in an expression.
*
*
*
*
* Use the # character in an expression to dereference an attribute name. For example, consider the
* following attribute name:
*
*
* -
*
* Percentile
*
*
*
*
* The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression.
* (For the complete list of reserved words, see Reserved
* Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
* following for ExpressionAttributeNames:
*
*
* -
*
* {"#P":"Percentile"}
*
*
*
*
* You could then use this substitution in an expression, as in this example:
*
*
* -
*
* #P = :val
*
*
*
*
*
* Tokens that begin with the : character are expression attribute values, which are
* placeholders for the actual value at runtime.
*
*
*
* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withExpressionAttributeNames(java.util.Map expressionAttributeNames) {
setExpressionAttributeNames(expressionAttributeNames);
return this;
}
public QueryRequest addExpressionAttributeNamesEntry(String key, String value) {
if (null == this.expressionAttributeNames) {
this.expressionAttributeNames = new java.util.HashMap();
}
if (this.expressionAttributeNames.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.expressionAttributeNames.put(key, value);
return this;
}
/**
* Removes all the entries added into ExpressionAttributeNames.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest clearExpressionAttributeNamesEntries() {
this.expressionAttributeNames = null;
return this;
}
/**
*
* One or more values that can be substituted in an expression.
*
*
* Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that
* you wanted to check whether the value of the ProductStatus attribute was one of the following:
*
*
* Available | Backordered | Discontinued
*
*
* You would first need to specify ExpressionAttributeValues as follows:
*
*
* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
*
*
* You could then use these values in an expression, such as this:
*
*
* ProductStatus IN (:avail, :back, :disc)
*
*
* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
*
*
* @return One or more values that can be substituted in an expression.
*
* Use the : (colon) character in an expression to dereference an attribute value. For example,
* suppose that you wanted to check whether the value of the ProductStatus attribute was one of the
* following:
*
*
* Available | Backordered | Discontinued
*
*
* You would first need to specify ExpressionAttributeValues as follows:
*
*
* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
*
*
* You could then use these values in an expression, such as this:
*
*
* ProductStatus IN (:avail, :back, :disc)
*
*
* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
*/
public java.util.Map getExpressionAttributeValues() {
return expressionAttributeValues;
}
/**
*
* One or more values that can be substituted in an expression.
*
*
* Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that
* you wanted to check whether the value of the ProductStatus attribute was one of the following:
*
*
* Available | Backordered | Discontinued
*
*
* You would first need to specify ExpressionAttributeValues as follows:
*
*
* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
*
*
* You could then use these values in an expression, such as this:
*
*
* ProductStatus IN (:avail, :back, :disc)
*
*
* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
*
*
* @param expressionAttributeValues
* One or more values that can be substituted in an expression.
*
* Use the : (colon) character in an expression to dereference an attribute value. For example,
* suppose that you wanted to check whether the value of the ProductStatus attribute was one of the
* following:
*
*
* Available | Backordered | Discontinued
*
*
* You would first need to specify ExpressionAttributeValues as follows:
*
*
* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
*
*
* You could then use these values in an expression, such as this:
*
*
* ProductStatus IN (:avail, :back, :disc)
*
*
* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
*/
public void setExpressionAttributeValues(java.util.Map expressionAttributeValues) {
this.expressionAttributeValues = expressionAttributeValues;
}
/**
*
* One or more values that can be substituted in an expression.
*
*
* Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that
* you wanted to check whether the value of the ProductStatus attribute was one of the following:
*
*
* Available | Backordered | Discontinued
*
*
* You would first need to specify ExpressionAttributeValues as follows:
*
*
* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
*
*
* You could then use these values in an expression, such as this:
*
*
* ProductStatus IN (:avail, :back, :disc)
*
*
* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
*
*
* @param expressionAttributeValues
* One or more values that can be substituted in an expression.
*
* Use the : (colon) character in an expression to dereference an attribute value. For example,
* suppose that you wanted to check whether the value of the ProductStatus attribute was one of the
* following:
*
*
* Available | Backordered | Discontinued
*
*
* You would first need to specify ExpressionAttributeValues as follows:
*
*
* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
*
*
* You could then use these values in an expression, such as this:
*
*
* ProductStatus IN (:avail, :back, :disc)
*
*
* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest withExpressionAttributeValues(java.util.Map expressionAttributeValues) {
setExpressionAttributeValues(expressionAttributeValues);
return this;
}
public QueryRequest addExpressionAttributeValuesEntry(String key, AttributeValue value) {
if (null == this.expressionAttributeValues) {
this.expressionAttributeValues = new java.util.HashMap();
}
if (this.expressionAttributeValues.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.expressionAttributeValues.put(key, value);
return this;
}
/**
* Removes all the entries added into ExpressionAttributeValues.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public QueryRequest clearExpressionAttributeValuesEntries() {
this.expressionAttributeValues = null;
return this;
}
/**
* The primary hash and range keys of the first item that this operation will evaluate. Use the value that was
* returned for LastEvaluatedKey in the previous operation.
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
*
* @param hashKey
* a map entry including the name and value of the primary hash key.
* @param rangeKey
* a map entry including the name and value of the primary range key, or null if it is a hash-only table.
*/
public void setExclusiveStartKey(java.util.Map.Entry hashKey, java.util.Map.Entry rangeKey)
throws IllegalArgumentException {
java.util.HashMap exclusiveStartKey = new java.util.HashMap();
if (hashKey != null) {
exclusiveStartKey.put(hashKey.getKey(), hashKey.getValue());
} else {
throw new IllegalArgumentException("hashKey must be non-null object.");
}
if (rangeKey != null) {
exclusiveStartKey.put(rangeKey.getKey(), rangeKey.getValue());
}
setExclusiveStartKey(exclusiveStartKey);
}
/**
* The primary hash and range keys of the first item that this operation will evaluate. Use the value that was
* returned for LastEvaluatedKey in the previous operation.
*
* The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param hashKey
* a map entry including the name and value of the primary hash key.
* @param rangeKey
* a map entry including the name and value of the primary range key, or null if it is a hash-only table.
*/
public QueryRequest withExclusiveStartKey(java.util.Map.Entry hashKey, java.util.Map.Entry rangeKey)
throws IllegalArgumentException {
setExclusiveStartKey(hashKey, rangeKey);
return this;
}
/**
* Returns a string representation of this object; useful for testing and debugging.
*
* @return A string representation of this object.
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("{");
if (getTableName() != null)
sb.append("TableName: ").append(getTableName()).append(",");
if (getIndexName() != null)
sb.append("IndexName: ").append(getIndexName()).append(",");
if (getSelect() != null)
sb.append("Select: ").append(getSelect()).append(",");
if (getAttributesToGet() != null)
sb.append("AttributesToGet: ").append(getAttributesToGet()).append(",");
if (getLimit() != null)
sb.append("Limit: ").append(getLimit()).append(",");
if (getConsistentRead() != null)
sb.append("ConsistentRead: ").append(getConsistentRead()).append(",");
if (getKeyConditions() != null)
sb.append("KeyConditions: ").append(getKeyConditions()).append(",");
if (getQueryFilter() != null)
sb.append("QueryFilter: ").append(getQueryFilter()).append(",");
if (getConditionalOperator() != null)
sb.append("ConditionalOperator: ").append(getConditionalOperator()).append(",");
if (getScanIndexForward() != null)
sb.append("ScanIndexForward: ").append(getScanIndexForward()).append(",");
if (getExclusiveStartKey() != null)
sb.append("ExclusiveStartKey: ").append(getExclusiveStartKey()).append(",");
if (getReturnConsumedCapacity() != null)
sb.append("ReturnConsumedCapacity: ").append(getReturnConsumedCapacity()).append(",");
if (getProjectionExpression() != null)
sb.append("ProjectionExpression: ").append(getProjectionExpression()).append(",");
if (getFilterExpression() != null)
sb.append("FilterExpression: ").append(getFilterExpression()).append(",");
if (getKeyConditionExpression() != null)
sb.append("KeyConditionExpression: ").append(getKeyConditionExpression()).append(",");
if (getExpressionAttributeNames() != null)
sb.append("ExpressionAttributeNames: ").append(getExpressionAttributeNames()).append(",");
if (getExpressionAttributeValues() != null)
sb.append("ExpressionAttributeValues: ").append(getExpressionAttributeValues());
sb.append("}");
return sb.toString();
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (obj instanceof QueryRequest == false)
return false;
QueryRequest other = (QueryRequest) obj;
if (other.getTableName() == null ^ this.getTableName() == null)
return false;
if (other.getTableName() != null && other.getTableName().equals(this.getTableName()) == false)
return false;
if (other.getIndexName() == null ^ this.getIndexName() == null)
return false;
if (other.getIndexName() != null && other.getIndexName().equals(this.getIndexName()) == false)
return false;
if (other.getSelect() == null ^ this.getSelect() == null)
return false;
if (other.getSelect() != null && other.getSelect().equals(this.getSelect()) == false)
return false;
if (other.getAttributesToGet() == null ^ this.getAttributesToGet() == null)
return false;
if (other.getAttributesToGet() != null && other.getAttributesToGet().equals(this.getAttributesToGet()) == false)
return false;
if (other.getLimit() == null ^ this.getLimit() == null)
return false;
if (other.getLimit() != null && other.getLimit().equals(this.getLimit()) == false)
return false;
if (other.getConsistentRead() == null ^ this.getConsistentRead() == null)
return false;
if (other.getConsistentRead() != null && other.getConsistentRead().equals(this.getConsistentRead()) == false)
return false;
if (other.getKeyConditions() == null ^ this.getKeyConditions() == null)
return false;
if (other.getKeyConditions() != null && other.getKeyConditions().equals(this.getKeyConditions()) == false)
return false;
if (other.getQueryFilter() == null ^ this.getQueryFilter() == null)
return false;
if (other.getQueryFilter() != null && other.getQueryFilter().equals(this.getQueryFilter()) == false)
return false;
if (other.getConditionalOperator() == null ^ this.getConditionalOperator() == null)
return false;
if (other.getConditionalOperator() != null && other.getConditionalOperator().equals(this.getConditionalOperator()) == false)
return false;
if (other.getScanIndexForward() == null ^ this.getScanIndexForward() == null)
return false;
if (other.getScanIndexForward() != null && other.getScanIndexForward().equals(this.getScanIndexForward()) == false)
return false;
if (other.getExclusiveStartKey() == null ^ this.getExclusiveStartKey() == null)
return false;
if (other.getExclusiveStartKey() != null && other.getExclusiveStartKey().equals(this.getExclusiveStartKey()) == false)
return false;
if (other.getReturnConsumedCapacity() == null ^ this.getReturnConsumedCapacity() == null)
return false;
if (other.getReturnConsumedCapacity() != null && other.getReturnConsumedCapacity().equals(this.getReturnConsumedCapacity()) == false)
return false;
if (other.getProjectionExpression() == null ^ this.getProjectionExpression() == null)
return false;
if (other.getProjectionExpression() != null && other.getProjectionExpression().equals(this.getProjectionExpression()) == false)
return false;
if (other.getFilterExpression() == null ^ this.getFilterExpression() == null)
return false;
if (other.getFilterExpression() != null && other.getFilterExpression().equals(this.getFilterExpression()) == false)
return false;
if (other.getKeyConditionExpression() == null ^ this.getKeyConditionExpression() == null)
return false;
if (other.getKeyConditionExpression() != null && other.getKeyConditionExpression().equals(this.getKeyConditionExpression()) == false)
return false;
if (other.getExpressionAttributeNames() == null ^ this.getExpressionAttributeNames() == null)
return false;
if (other.getExpressionAttributeNames() != null && other.getExpressionAttributeNames().equals(this.getExpressionAttributeNames()) == false)
return false;
if (other.getExpressionAttributeValues() == null ^ this.getExpressionAttributeValues() == null)
return false;
if (other.getExpressionAttributeValues() != null && other.getExpressionAttributeValues().equals(this.getExpressionAttributeValues()) == false)
return false;
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int hashCode = 1;
hashCode = prime * hashCode + ((getTableName() == null) ? 0 : getTableName().hashCode());
hashCode = prime * hashCode + ((getIndexName() == null) ? 0 : getIndexName().hashCode());
hashCode = prime * hashCode + ((getSelect() == null) ? 0 : getSelect().hashCode());
hashCode = prime * hashCode + ((getAttributesToGet() == null) ? 0 : getAttributesToGet().hashCode());
hashCode = prime * hashCode + ((getLimit() == null) ? 0 : getLimit().hashCode());
hashCode = prime * hashCode + ((getConsistentRead() == null) ? 0 : getConsistentRead().hashCode());
hashCode = prime * hashCode + ((getKeyConditions() == null) ? 0 : getKeyConditions().hashCode());
hashCode = prime * hashCode + ((getQueryFilter() == null) ? 0 : getQueryFilter().hashCode());
hashCode = prime * hashCode + ((getConditionalOperator() == null) ? 0 : getConditionalOperator().hashCode());
hashCode = prime * hashCode + ((getScanIndexForward() == null) ? 0 : getScanIndexForward().hashCode());
hashCode = prime * hashCode + ((getExclusiveStartKey() == null) ? 0 : getExclusiveStartKey().hashCode());
hashCode = prime * hashCode + ((getReturnConsumedCapacity() == null) ? 0 : getReturnConsumedCapacity().hashCode());
hashCode = prime * hashCode + ((getProjectionExpression() == null) ? 0 : getProjectionExpression().hashCode());
hashCode = prime * hashCode + ((getFilterExpression() == null) ? 0 : getFilterExpression().hashCode());
hashCode = prime * hashCode + ((getKeyConditionExpression() == null) ? 0 : getKeyConditionExpression().hashCode());
hashCode = prime * hashCode + ((getExpressionAttributeNames() == null) ? 0 : getExpressionAttributeNames().hashCode());
hashCode = prime * hashCode + ((getExpressionAttributeValues() == null) ? 0 : getExpressionAttributeValues().hashCode());
return hashCode;
}
@Override
public QueryRequest clone() {
return (QueryRequest) super.clone();
}
}