com.amazonaws.services.dynamodbv2.model.ScanRequest Maven / Gradle / Ivy
/*
* Copyright 2010-2016 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;
/**
* Container for the parameters to the {@link com.amazonaws.services.dynamodbv2.AmazonDynamoDB#scan(ScanRequest) Scan operation}.
*
* The Scan operation returns one or more items and item
* attributes by accessing every item in a table or a secondary index. To
* have DynamoDB return fewer items, you can provide a ScanFilter
* operation.
*
*
* If the total number of scanned items exceeds the maximum data set size
* limit of 1 MB, the scan stops and results are returned to the user as
* a LastEvaluatedKey value to continue the scan in a subsequent
* operation. The results also include the number of items exceeding the
* limit. A scan can result in no table data meeting the filter criteria.
*
*
* By default, Scan operations proceed sequentially; however, for
* faster performance on a large table or secondary index, applications
* can request a parallel Scan operation by providing the
* Segment and TotalSegments parameters. For more
* information, see
* Parallel Scan
* in the Amazon DynamoDB Developer Guide .
*
*
* By default, Scan uses eventually consistent reads when
* accessing the data in a table; therefore, the result set might not
* include the changes to data in the table immediately before the
* operation began. If you need a consistent copy of the data, as of the
* time that the Scan begins, you can set the ConsistentRead
* parameter to true .
*
*
* @see com.amazonaws.services.dynamodbv2.AmazonDynamoDB#scan(ScanRequest)
*/
public class ScanRequest extends AmazonWebServiceRequest implements Serializable {
/**
* The name of the table containing the requested items; or, if you
* provide IndexName, the name of the table to which that
* index belongs.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*/
private String tableName;
/**
* The name of a secondary index to scan. This index can be any local
* secondary index or global secondary index. Note that if you use the
* IndexName parameter, you must also provide
* TableName.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*/
private String indexName;
/**
* 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.
*
* Constraints:
* Length: 1 -
*/
private com.amazonaws.internal.ListWithAutoConstructFlag 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.
*
* Constraints:
* Range: 1 -
*/
private Integer limit;
/**
* The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* Constraints:
* Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
*/
private String select;
/**
* 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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*/
private java.util.Map scanFilter;
/**
* 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 ScanFilter 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.
* Constraints:
* Allowed Values: AND, OR
*/
private String conditionalOperator;
/**
* 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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*/
private java.util.Map exclusiveStartKey;
/**
* Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* Constraints:
* Allowed Values: INDEXES, TOTAL, NONE
*/
private String returnConsumedCapacity;
/**
* For a parallel Scan request, TotalSegments represents
* the total number of segments into which the Scan operation will
* be divided. The value of TotalSegments corresponds to the
* number of application workers that will perform the parallel scan. For
* example, if you want to use four application threads to scan a table
* or an index, specify a TotalSegments value of 4.
The value
* for TotalSegments must be greater than or equal to 1, and less
* than or equal to 1000000. If you specify a TotalSegments value
* of 1, the Scan operation will be sequential rather than
* parallel.
If you specify TotalSegments, you must also
* specify Segment.
*
* Constraints:
* Range: 1 - 1000000
*/
private Integer totalSegments;
/**
* For a parallel Scan request, Segment identifies an
* individual segment to be scanned by an application worker.
Segment
* IDs are zero-based, so the first segment is always 0. For example, if
* you want to use four application threads to scan a table or an index,
* then the first thread specifies a Segment value of 0, the
* second thread specifies 1, and so on.
The value of
* LastEvaluatedKey returned from a parallel Scan request
* must be used as ExclusiveStartKey with the same segment ID in a
* subsequent Scan operation.
The value for Segment must
* be greater than or equal to 0, and less than the value provided for
* TotalSegments.
If you provide Segment, you must also
* provide TotalSegments.
*
* Constraints:
* Range: 0 - 999999
*/
private Integer segment;
/**
* A string that identifies one or more attributes to retrieve from the
* specified table or index. 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.
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 ScanFilter
* and ConditionalOperator parameters.
-
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;
/**
* A Boolean value that determines the read consistency model during the
* scan: -
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*/
private Boolean consistentRead;
/**
* Default constructor for a new ScanRequest object. Callers should use the
* setter or fluent setter (with...) methods to initialize this object after creating it.
*/
public ScanRequest() {}
/**
* Constructs a new ScanRequest 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;
* or, if you provide IndexName, the name of the table to
* which that index belongs.
*/
public ScanRequest(String tableName) {
setTableName(tableName);
}
/**
* The name of the table containing the requested items; or, if you
* provide IndexName, the name of the table to which that
* index belongs.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*
* @return The name of the table containing the requested items; or, if you
* provide IndexName, the name of the table to which that
* index belongs.
*/
public String getTableName() {
return tableName;
}
/**
* The name of the table containing the requested items; or, if you
* provide IndexName, the name of the table to which that
* index belongs.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*
* @param tableName The name of the table containing the requested items; or, if you
* provide IndexName, the name of the table to which that
* index belongs.
*/
public void setTableName(String tableName) {
this.tableName = tableName;
}
/**
* The name of the table containing the requested items; or, if you
* provide IndexName, the name of the table to which that
* index belongs.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*
* @param tableName The name of the table containing the requested items; or, if you
* provide IndexName, the name of the table to which that
* index belongs.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withTableName(String tableName) {
this.tableName = tableName;
return this;
}
/**
* The name of a secondary index to scan. This index can be any local
* secondary index or global secondary index. Note that if you use the
* IndexName parameter, you must also provide
* TableName.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*
* @return The name of a secondary index to scan. This index can be any local
* secondary index or global secondary index. Note that if you use the
* IndexName parameter, you must also provide
* TableName.
*/
public String getIndexName() {
return indexName;
}
/**
* The name of a secondary index to scan. This index can be any local
* secondary index or global secondary index. Note that if you use the
* IndexName parameter, you must also provide
* TableName.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*
* @param indexName The name of a secondary index to scan. This index can be any local
* secondary index or global secondary index. Note that if you use the
* IndexName parameter, you must also provide
* TableName.
*/
public void setIndexName(String indexName) {
this.indexName = indexName;
}
/**
* The name of a secondary index to scan. This index can be any local
* secondary index or global secondary index. Note that if you use the
* IndexName parameter, you must also provide
* TableName.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*
* @param indexName The name of a secondary index to scan. This index can be any local
* secondary index or global secondary index. Note that if you use the
* IndexName parameter, you must also provide
* TableName.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withIndexName(String indexName) {
this.indexName = indexName;
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.
*
* Constraints:
* Length: 1 -
*
* @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.
*/
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.
*
* Constraints:
* Length: 1 -
*
* @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.
*/
public void setAttributesToGet(java.util.Collection attributesToGet) {
if (attributesToGet == null) {
this.attributesToGet = null;
return;
}
com.amazonaws.internal.ListWithAutoConstructFlag attributesToGetCopy = new com.amazonaws.internal.ListWithAutoConstructFlag(attributesToGet.size());
attributesToGetCopy.addAll(attributesToGet);
this.attributesToGet = attributesToGetCopy;
}
/**
* 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.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Length: 1 -
*
* @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.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withAttributesToGet(String... attributesToGet) {
if (getAttributesToGet() == null) setAttributesToGet(new java.util.ArrayList(attributesToGet.length));
for (String value : attributesToGet) {
getAttributesToGet().add(value);
}
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.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Length: 1 -
*
* @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.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withAttributesToGet(java.util.Collection attributesToGet) {
if (attributesToGet == null) {
this.attributesToGet = null;
} else {
com.amazonaws.internal.ListWithAutoConstructFlag attributesToGetCopy = new com.amazonaws.internal.ListWithAutoConstructFlag(attributesToGet.size());
attributesToGetCopy.addAll(attributesToGet);
this.attributesToGet = attributesToGetCopy;
}
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.
*
* Constraints:
* Range: 1 -
*
* @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 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.
*
* Constraints:
* Range: 1 -
*
* @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.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Range: 1 -
*
* @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 A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withLimit(Integer limit) {
this.limit = limit;
return this;
}
/**
* The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* Constraints:
* Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
*
* @return The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* @see Select
*/
public String getSelect() {
return select;
}
/**
* The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* Constraints:
* Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
*
* @param select The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* @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, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
*
* @param select The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* @return A reference to this updated object so that method calls can be chained
* together.
*
* @see Select
*/
public ScanRequest withSelect(String select) {
this.select = select;
return this;
}
/**
* The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* Constraints:
* Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
*
* @param select The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* @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, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
*
* @param select The attributes to be returned in the result. You can retrieve all item
* attributes, specific item attributes, or the count of matching items.
*
-
ALL_ATTRIBUTES - Returns all of the item
* 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 neither Select nor
* AttributesToGet are specified, DynamoDB defaults to
* ALL_ATTRIBUTES. You cannot use both
* AttributesToGet and Select 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.)
*
* @return A reference to this updated object so that method calls can be chained
* together.
*
* @see Select
*/
public ScanRequest withSelect(Select select) {
this.select = select.toString();
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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*
* @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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*/
public java.util.Map getScanFilter() {
return scanFilter;
}
/**
* 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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*
* @param scanFilter 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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*/
public void setScanFilter(java.util.Map scanFilter) {
this.scanFilter = scanFilter;
}
/**
* 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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param scanFilter 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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withScanFilter(java.util.Map scanFilter) {
setScanFilter(scanFilter);
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 scan results
* and returns only the desired values. This parameter does not
* support attributes of type List or Map.
If you specify more
* than one condition in the ScanFilter 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.)
Each ScanFilter 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 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 Condition.
*
*
* The method adds a new key-value pair into ScanFilter parameter, and
* returns a reference to this object so that method calls can be chained
* together.
*
* @param key The key of the entry to be added into ScanFilter.
* @param value The corresponding value of the entry to be added into ScanFilter.
*/
public ScanRequest addScanFilterEntry(String key, Condition value) {
if (null == this.scanFilter) {
this.scanFilter = new java.util.HashMap();
}
if (this.scanFilter.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.scanFilter.put(key, value);
return this;
}
/**
* Removes all the entries added into ScanFilter.
*
* Returns a reference to this object so that method calls can be chained together.
*/
public ScanRequest clearScanFilterEntries() {
this.scanFilter = 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 ScanFilter 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.
* Constraints:
* Allowed Values: AND, OR
*
* @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 ScanFilter 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.
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 ScanFilter 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.
* Constraints:
* Allowed Values: AND, OR
*
* @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 ScanFilter 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.
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 ScanFilter 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.
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: AND, OR
*
* @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 ScanFilter 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.
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 ScanFilter 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.
* Constraints:
* Allowed Values: AND, OR
*
* @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 ScanFilter 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.
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 ScanFilter 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.
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: AND, OR
*
* @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 ScanFilter 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.
The data type for ExclusiveStartKey must
* be String, Number or Binary. No set data types are allowed.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*
* @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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*/
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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*
* @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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*/
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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withExclusiveStartKey(java.util.Map exclusiveStartKey) {
setExclusiveStartKey(exclusiveStartKey);
return this;
}
/**
* 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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*
* This method accepts the hashKey, rangeKey of ExclusiveStartKey as
* java.util.Map.Entry objects.
*
* @param hashKey Primary hash key.
* @param rangeKey Primary range key. (null if it 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 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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*
* This method accepts the hashKey, rangeKey of ExclusiveStartKey as
* java.util.Map.Entry objects.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param hashKey Primary hash key.
* @param rangeKey Primary range key. (null if it a hash-only table)
*/
public ScanRequest withExclusiveStartKey(java.util.Map.Entry hashKey, java.util.Map.Entry rangeKey) throws IllegalArgumentException {
setExclusiveStartKey(hashKey, rangeKey);
return this;
}
/**
* 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.
In a
* parallel scan, a Scan request that includes
* ExclusiveStartKey must specify the same segment whose previous
* Scan returned the corresponding value of
* LastEvaluatedKey.
*
* The method adds a new key-value pair into ExclusiveStartKey parameter,
* and returns a reference to this object so that method calls can be
* chained together.
*
* @param key The key of the entry to be added into ExclusiveStartKey.
* @param value The corresponding value of the entry to be added into ExclusiveStartKey.
*/
public ScanRequest 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.
*
* Returns a reference to this object so that method calls can be chained together.
*/
public ScanRequest clearExclusiveStartKeyEntries() {
this.exclusiveStartKey = null;
return this;
}
/**
* Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* Constraints:
* Allowed Values: INDEXES, TOTAL, NONE
*
* @return Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* @see ReturnConsumedCapacity
*/
public String getReturnConsumedCapacity() {
return returnConsumedCapacity;
}
/**
* Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* Constraints:
* Allowed Values: INDEXES, TOTAL, NONE
*
* @param returnConsumedCapacity Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* @see ReturnConsumedCapacity
*/
public void setReturnConsumedCapacity(String returnConsumedCapacity) {
this.returnConsumedCapacity = returnConsumedCapacity;
}
/**
* Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: INDEXES, TOTAL, NONE
*
* @param returnConsumedCapacity Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*
* @see ReturnConsumedCapacity
*/
public ScanRequest withReturnConsumedCapacity(String returnConsumedCapacity) {
this.returnConsumedCapacity = returnConsumedCapacity;
return this;
}
/**
* Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* Constraints:
* Allowed Values: INDEXES, TOTAL, NONE
*
* @param returnConsumedCapacity Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* @see ReturnConsumedCapacity
*/
public void setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity) {
this.returnConsumedCapacity = returnConsumedCapacity.toString();
}
/**
* Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: INDEXES, TOTAL, NONE
*
* @param returnConsumedCapacity Determines the level of detail about provisioned throughput
* consumption that is returned in the response:
* INDEXES - The response includes the aggregate
* ConsumedCapacity for the operation, together with
* ConsumedCapacity for each table and secondary index that was
* accessed.
Note that some operations, such as GetItem and
* BatchGetItem, do not access any indexes at all. In these cases,
* specifying INDEXES will only return ConsumedCapacity
* information for table(s).
TOTAL - The response
* includes only the aggregate ConsumedCapacity for the
* operation.
NONE - No ConsumedCapacity
* details are included in the response.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*
* @see ReturnConsumedCapacity
*/
public ScanRequest withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity) {
this.returnConsumedCapacity = returnConsumedCapacity.toString();
return this;
}
/**
* For a parallel Scan request, TotalSegments represents
* the total number of segments into which the Scan operation will
* be divided. The value of TotalSegments corresponds to the
* number of application workers that will perform the parallel scan. For
* example, if you want to use four application threads to scan a table
* or an index, specify a TotalSegments value of 4. The value
* for TotalSegments must be greater than or equal to 1, and less
* than or equal to 1000000. If you specify a TotalSegments value
* of 1, the Scan operation will be sequential rather than
* parallel.
If you specify TotalSegments, you must also
* specify Segment.
*
* Constraints:
* Range: 1 - 1000000
*
* @return For a parallel Scan request, TotalSegments represents
* the total number of segments into which the Scan operation will
* be divided. The value of TotalSegments corresponds to the
* number of application workers that will perform the parallel scan. For
* example, if you want to use four application threads to scan a table
* or an index, specify a TotalSegments value of 4.
The value
* for TotalSegments must be greater than or equal to 1, and less
* than or equal to 1000000. If you specify a TotalSegments value
* of 1, the Scan operation will be sequential rather than
* parallel.
If you specify TotalSegments, you must also
* specify Segment.
*/
public Integer getTotalSegments() {
return totalSegments;
}
/**
* For a parallel Scan request, TotalSegments represents
* the total number of segments into which the Scan operation will
* be divided. The value of TotalSegments corresponds to the
* number of application workers that will perform the parallel scan. For
* example, if you want to use four application threads to scan a table
* or an index, specify a TotalSegments value of 4.
The value
* for TotalSegments must be greater than or equal to 1, and less
* than or equal to 1000000. If you specify a TotalSegments value
* of 1, the Scan operation will be sequential rather than
* parallel.
If you specify TotalSegments, you must also
* specify Segment.
*
* Constraints:
* Range: 1 - 1000000
*
* @param totalSegments For a parallel Scan request, TotalSegments represents
* the total number of segments into which the Scan operation will
* be divided. The value of TotalSegments corresponds to the
* number of application workers that will perform the parallel scan. For
* example, if you want to use four application threads to scan a table
* or an index, specify a TotalSegments value of 4.
The value
* for TotalSegments must be greater than or equal to 1, and less
* than or equal to 1000000. If you specify a TotalSegments value
* of 1, the Scan operation will be sequential rather than
* parallel.
If you specify TotalSegments, you must also
* specify Segment.
*/
public void setTotalSegments(Integer totalSegments) {
this.totalSegments = totalSegments;
}
/**
* For a parallel Scan request, TotalSegments represents
* the total number of segments into which the Scan operation will
* be divided. The value of TotalSegments corresponds to the
* number of application workers that will perform the parallel scan. For
* example, if you want to use four application threads to scan a table
* or an index, specify a TotalSegments value of 4.
The value
* for TotalSegments must be greater than or equal to 1, and less
* than or equal to 1000000. If you specify a TotalSegments value
* of 1, the Scan operation will be sequential rather than
* parallel.
If you specify TotalSegments, you must also
* specify Segment.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Range: 1 - 1000000
*
* @param totalSegments For a parallel Scan request, TotalSegments represents
* the total number of segments into which the Scan operation will
* be divided. The value of TotalSegments corresponds to the
* number of application workers that will perform the parallel scan. For
* example, if you want to use four application threads to scan a table
* or an index, specify a TotalSegments value of 4.
The value
* for TotalSegments must be greater than or equal to 1, and less
* than or equal to 1000000. If you specify a TotalSegments value
* of 1, the Scan operation will be sequential rather than
* parallel.
If you specify TotalSegments, you must also
* specify Segment.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withTotalSegments(Integer totalSegments) {
this.totalSegments = totalSegments;
return this;
}
/**
* For a parallel Scan request, Segment identifies an
* individual segment to be scanned by an application worker.
Segment
* IDs are zero-based, so the first segment is always 0. For example, if
* you want to use four application threads to scan a table or an index,
* then the first thread specifies a Segment value of 0, the
* second thread specifies 1, and so on.
The value of
* LastEvaluatedKey returned from a parallel Scan request
* must be used as ExclusiveStartKey with the same segment ID in a
* subsequent Scan operation.
The value for Segment must
* be greater than or equal to 0, and less than the value provided for
* TotalSegments.
If you provide Segment, you must also
* provide TotalSegments.
*
* Constraints:
* Range: 0 - 999999
*
* @return For a parallel Scan request, Segment identifies an
* individual segment to be scanned by an application worker.
Segment
* IDs are zero-based, so the first segment is always 0. For example, if
* you want to use four application threads to scan a table or an index,
* then the first thread specifies a Segment value of 0, the
* second thread specifies 1, and so on.
The value of
* LastEvaluatedKey returned from a parallel Scan request
* must be used as ExclusiveStartKey with the same segment ID in a
* subsequent Scan operation.
The value for Segment must
* be greater than or equal to 0, and less than the value provided for
* TotalSegments.
If you provide Segment, you must also
* provide TotalSegments.
*/
public Integer getSegment() {
return segment;
}
/**
* For a parallel Scan request, Segment identifies an
* individual segment to be scanned by an application worker.
Segment
* IDs are zero-based, so the first segment is always 0. For example, if
* you want to use four application threads to scan a table or an index,
* then the first thread specifies a Segment value of 0, the
* second thread specifies 1, and so on.
The value of
* LastEvaluatedKey returned from a parallel Scan request
* must be used as ExclusiveStartKey with the same segment ID in a
* subsequent Scan operation.
The value for Segment must
* be greater than or equal to 0, and less than the value provided for
* TotalSegments.
If you provide Segment, you must also
* provide TotalSegments.
*
* Constraints:
* Range: 0 - 999999
*
* @param segment For a parallel Scan request, Segment identifies an
* individual segment to be scanned by an application worker.
Segment
* IDs are zero-based, so the first segment is always 0. For example, if
* you want to use four application threads to scan a table or an index,
* then the first thread specifies a Segment value of 0, the
* second thread specifies 1, and so on.
The value of
* LastEvaluatedKey returned from a parallel Scan request
* must be used as ExclusiveStartKey with the same segment ID in a
* subsequent Scan operation.
The value for Segment must
* be greater than or equal to 0, and less than the value provided for
* TotalSegments.
If you provide Segment, you must also
* provide TotalSegments.
*/
public void setSegment(Integer segment) {
this.segment = segment;
}
/**
* For a parallel Scan request, Segment identifies an
* individual segment to be scanned by an application worker.
Segment
* IDs are zero-based, so the first segment is always 0. For example, if
* you want to use four application threads to scan a table or an index,
* then the first thread specifies a Segment value of 0, the
* second thread specifies 1, and so on.
The value of
* LastEvaluatedKey returned from a parallel Scan request
* must be used as ExclusiveStartKey with the same segment ID in a
* subsequent Scan operation.
The value for Segment must
* be greater than or equal to 0, and less than the value provided for
* TotalSegments.
If you provide Segment, you must also
* provide TotalSegments.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Range: 0 - 999999
*
* @param segment For a parallel Scan request, Segment identifies an
* individual segment to be scanned by an application worker.
Segment
* IDs are zero-based, so the first segment is always 0. For example, if
* you want to use four application threads to scan a table or an index,
* then the first thread specifies a Segment value of 0, the
* second thread specifies 1, and so on.
The value of
* LastEvaluatedKey returned from a parallel Scan request
* must be used as ExclusiveStartKey with the same segment ID in a
* subsequent Scan operation.
The value for Segment must
* be greater than or equal to 0, and less than the value provided for
* TotalSegments.
If you provide Segment, you must also
* provide TotalSegments.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withSegment(Integer segment) {
this.segment = segment;
return this;
}
/**
* A string that identifies one or more attributes to retrieve from the
* specified table or index. 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.
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.
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.
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.
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.
* Returns a reference to this object so that method calls can be chained together.
*
* @param projectionExpression A string that identifies one or more attributes to retrieve from the
* specified table or index. 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.
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 ScanFilter
* and ConditionalOperator parameters.
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 ScanFilter
* and ConditionalOperator parameters.
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 ScanFilter
* and ConditionalOperator parameters.
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 ScanFilter
* and ConditionalOperator parameters.
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 ScanFilter
* and ConditionalOperator parameters.
* Returns a reference to this object so that method calls can be chained together.
*
* @param filterExpression A string that contains conditions that DynamoDB applies after the
* Scan 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 ScanFilter
* and ConditionalOperator parameters.
-
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.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @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 A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withExpressionAttributeNames(java.util.Map expressionAttributeNames) {
setExpressionAttributeNames(expressionAttributeNames);
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.
*
* The method adds a new key-value pair into ExpressionAttributeNames
* parameter, and returns a reference to this object so that method calls
* can be chained together.
*
* @param key The key of the entry to be added into ExpressionAttributeNames.
* @param value The corresponding value of the entry to be added into ExpressionAttributeNames.
*/
public ScanRequest 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.
*
* Returns a reference to this object so that method calls can be chained together.
*/
public ScanRequest 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.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @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 A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withExpressionAttributeValues(java.util.Map expressionAttributeValues) {
setExpressionAttributeValues(expressionAttributeValues);
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.
*
* The method adds a new key-value pair into ExpressionAttributeValues
* parameter, and returns a reference to this object so that method calls
* can be chained together.
*
* @param key The key of the entry to be added into ExpressionAttributeValues.
* @param value The corresponding value of the entry to be added into ExpressionAttributeValues.
*/
public ScanRequest 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.
*
* Returns a reference to this object so that method calls can be chained together.
*/
public ScanRequest clearExpressionAttributeValuesEntries() {
this.expressionAttributeValues = null;
return this;
}
/**
* A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*
* @return A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*/
public Boolean isConsistentRead() {
return consistentRead;
}
/**
* A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*
* @param consistentRead A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*/
public void setConsistentRead(Boolean consistentRead) {
this.consistentRead = consistentRead;
}
/**
* A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param consistentRead A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ScanRequest withConsistentRead(Boolean consistentRead) {
this.consistentRead = consistentRead;
return this;
}
/**
* A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*
* @return A Boolean value that determines the read consistency model during the
* scan:
-
If ConsistentRead is false,
* then the data returned from Scan might not contain the results
* from other recently completed write operations (PutItem, UpdateItem or
* DeleteItem).
-
If ConsistentRead is
* true, then all of the write operations that completed
* before the Scan began are guaranteed to be contained in the
* Scan response.
The default setting for
* ConsistentRead is false.
The
* ConsistentRead parameter is not supported on global secondary
* indexes. If you scan a global secondary index with
* ConsistentRead set to true, you will receive a
* ValidationException.
*/
public Boolean getConsistentRead() {
return consistentRead;
}
/**
* 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: " + getTableName() + ",");
if (getIndexName() != null) sb.append("IndexName: " + getIndexName() + ",");
if (getAttributesToGet() != null) sb.append("AttributesToGet: " + getAttributesToGet() + ",");
if (getLimit() != null) sb.append("Limit: " + getLimit() + ",");
if (getSelect() != null) sb.append("Select: " + getSelect() + ",");
if (getScanFilter() != null) sb.append("ScanFilter: " + getScanFilter() + ",");
if (getConditionalOperator() != null) sb.append("ConditionalOperator: " + getConditionalOperator() + ",");
if (getExclusiveStartKey() != null) sb.append("ExclusiveStartKey: " + getExclusiveStartKey() + ",");
if (getReturnConsumedCapacity() != null) sb.append("ReturnConsumedCapacity: " + getReturnConsumedCapacity() + ",");
if (getTotalSegments() != null) sb.append("TotalSegments: " + getTotalSegments() + ",");
if (getSegment() != null) sb.append("Segment: " + getSegment() + ",");
if (getProjectionExpression() != null) sb.append("ProjectionExpression: " + getProjectionExpression() + ",");
if (getFilterExpression() != null) sb.append("FilterExpression: " + getFilterExpression() + ",");
if (getExpressionAttributeNames() != null) sb.append("ExpressionAttributeNames: " + getExpressionAttributeNames() + ",");
if (getExpressionAttributeValues() != null) sb.append("ExpressionAttributeValues: " + getExpressionAttributeValues() + ",");
if (isConsistentRead() != null) sb.append("ConsistentRead: " + isConsistentRead() );
sb.append("}");
return sb.toString();
}
@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 + ((getAttributesToGet() == null) ? 0 : getAttributesToGet().hashCode());
hashCode = prime * hashCode + ((getLimit() == null) ? 0 : getLimit().hashCode());
hashCode = prime * hashCode + ((getSelect() == null) ? 0 : getSelect().hashCode());
hashCode = prime * hashCode + ((getScanFilter() == null) ? 0 : getScanFilter().hashCode());
hashCode = prime * hashCode + ((getConditionalOperator() == null) ? 0 : getConditionalOperator().hashCode());
hashCode = prime * hashCode + ((getExclusiveStartKey() == null) ? 0 : getExclusiveStartKey().hashCode());
hashCode = prime * hashCode + ((getReturnConsumedCapacity() == null) ? 0 : getReturnConsumedCapacity().hashCode());
hashCode = prime * hashCode + ((getTotalSegments() == null) ? 0 : getTotalSegments().hashCode());
hashCode = prime * hashCode + ((getSegment() == null) ? 0 : getSegment().hashCode());
hashCode = prime * hashCode + ((getProjectionExpression() == null) ? 0 : getProjectionExpression().hashCode());
hashCode = prime * hashCode + ((getFilterExpression() == null) ? 0 : getFilterExpression().hashCode());
hashCode = prime * hashCode + ((getExpressionAttributeNames() == null) ? 0 : getExpressionAttributeNames().hashCode());
hashCode = prime * hashCode + ((getExpressionAttributeValues() == null) ? 0 : getExpressionAttributeValues().hashCode());
hashCode = prime * hashCode + ((isConsistentRead() == null) ? 0 : isConsistentRead().hashCode());
return hashCode;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof ScanRequest == false) return false;
ScanRequest other = (ScanRequest)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.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.getSelect() == null ^ this.getSelect() == null) return false;
if (other.getSelect() != null && other.getSelect().equals(this.getSelect()) == false) return false;
if (other.getScanFilter() == null ^ this.getScanFilter() == null) return false;
if (other.getScanFilter() != null && other.getScanFilter().equals(this.getScanFilter()) == 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.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.getTotalSegments() == null ^ this.getTotalSegments() == null) return false;
if (other.getTotalSegments() != null && other.getTotalSegments().equals(this.getTotalSegments()) == false) return false;
if (other.getSegment() == null ^ this.getSegment() == null) return false;
if (other.getSegment() != null && other.getSegment().equals(this.getSegment()) == 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.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;
if (other.isConsistentRead() == null ^ this.isConsistentRead() == null) return false;
if (other.isConsistentRead() != null && other.isConsistentRead().equals(this.isConsistentRead()) == false) return false;
return true;
}
}