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/*
 * Copyright 2010-2018 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;

/**
 * 

* Edits an existing item's attributes, or adds a new item to the table if it * does not already exist. You can put, delete, or add attribute values. You can * also perform a conditional update on an existing item (insert a new attribute * name-value pair if it doesn't exist, or replace an existing name-value pair * if it has certain expected attribute values). *

*

* You can also return the item's attribute values in the same * UpdateItem operation using the ReturnValues * parameter. *

*/ public class UpdateItemRequest extends AmazonWebServiceRequest implements Serializable { /** *

* The name of the table containing the item to update. *

*

* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
*/ private String tableName; /** *

* The primary key of the item to be updated. Each element consists of an * attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. For example, * with a simple primary key, you only need to provide a value for the * partition key. For a composite primary key, you must provide values for * both the partition key and the sort key. *

*/ private java.util.Map key; /** *

* This is a legacy parameter. Use UpdateExpression instead. * For more information, see AttributeUpdates in the Amazon DynamoDB Developer Guide. *

*/ private java.util.Map attributeUpdates; /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see Expected in the Amazon DynamoDB Developer Guide. *

*/ private java.util.Map expected; /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. *

*

* Constraints:
* Allowed Values: AND, OR */ private String conditionalOperator; /** *

* Use ReturnValues if you want to get the item attributes as * they appear before or after they are updated. For UpdateItem * , the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not specified, or if * its value is NONE, then nothing is returned. (This setting * is the default for ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the item, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated attributes, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the item, as they * appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated attributes, as they * appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a return value * aside from the small network and processing overhead of receiving a * larger response. No read capacity units are consumed. *

*

* The values returned are strongly consistent. *

*

* Constraints:
* Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW */ private String returnValues; /** *

* 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; /** *

* Determines whether item collection metrics are returned. If set to * SIZE, the response includes statistics about item * collections, if any, that were modified during the operation are returned * in the response. If set to NONE (the default), no statistics * are returned. *

*

* Constraints:
* Allowed Values: SIZE, NONE */ private String returnItemCollectionMetrics; /** *

* An expression that defines one or more attributes to be updated, the * action to be performed on them, and new value(s) for them. *

*

* The following action values are available for * UpdateExpression. *

*
    *
  • *

    * SET - Adds one or more attributes and values to an item. If * any of these attribute already exist, they are replaced by the new * values. You can also use SET to add or subtract from an * attribute that is of type Number. For example: * SET myNum = myNum + :val *

    *

    * SET supports the following functions: *

    *
      *
    • *

      * if_not_exists (path, operand) - if the item does not contain * an attribute at the specified path, then if_not_exists * evaluates to operand; otherwise, it evaluates to path. You can use this * function to avoid overwriting an attribute that may already be present in * the item. *

      *
    • *
    • *

      * list_append (operand, operand) - evaluates to a list with a * new element added to it. You can append the new element to the start or * the end of the list by reversing the order of the operands. *

      *
    • *
    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * REMOVE - Removes one or more attributes from an item. *

    *
  • *
  • *

    * ADD - Adds the specified value to the item, if the attribute * does not already exist. If the attribute does exist, then the behavior of * ADD depends on the data type of the attribute: *

    *
      *
    • *

      * If the existing attribute is a number, and if Value is also * a number, then Value is mathematically added to the existing * attribute. If Value is a negative number, then it is * subtracted from the existing attribute. *

      * *

      * If you use ADD to increment or decrement a number value for * an item that doesn't exist before the update, DynamoDB uses * 0 as the initial value. *

      *

      * Similarly, if you use ADD for an existing item to increment * or decrement an attribute value that doesn't exist before the update, * DynamoDB uses 0 as the initial value. For example, suppose * that the item you want to update doesn't have an attribute named * itemcount, but you decide to ADD the number * 3 to this attribute anyway. DynamoDB will create the * itemcount attribute, set its initial value to 0, and * finally add 3 to it. The result will be a new * itemcount attribute in the item, with a value of 3. *

      *
    • *
    • *

      * If the existing data type is a set and if Value is also a * set, then Value is added to the existing set. For example, * if the attribute value is the set [1,2], and the * ADD action specified [3], then the final * attribute value is [1,2,3]. An error occurs if an * ADD action is specified for a set attribute and the * attribute type specified does not match the existing set type. *

      *

      * Both sets must have the same primitive data type. For example, if the * existing data type is a set of strings, the Value must also * be a set of strings. *

      *
    • *
    * *

    * The ADD action only supports Number and set data types. In * addition, ADD can only be used on top-level attributes, not * nested attributes. *

    *
  • *
  • *

    * DELETE - Deletes an element from a set. *

    *

    * If a set of values is specified, then those values are subtracted from * the old set. For example, if the attribute value was the set * [a,b,c] and the DELETE action specifies * [a,c], then the final attribute value is [b]. * Specifying an empty set is an error. *

    * *

    * The DELETE action only supports set data types. In addition, * DELETE can only be used on top-level attributes, not nested * attributes. *

    *
  • *
*

* You can have many actions in a single expression, such as the following: * SET a=:value1, b=:value2 DELETE :value3, :value4, :value5 *

*

* For more information on update expressions, see Modifying Items and Attributes in the Amazon DynamoDB Developer * Guide. *

*/ private String updateExpression; /** *

* A condition that must be satisfied in order for a conditional update to * succeed. *

*

* An expression can contain any of the following: *

*
    *
  • *

    * Functions: * attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size *

    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * Comparison operators: * = | <> | < | > | <= | >= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

* For more information on condition expressions, see Specifying Conditions in the Amazon DynamoDB Developer Guide. *

*/ private String conditionExpression; /** *

* One or more substitution tokens for attribute names in an expression. The * following are some use cases for using * ExpressionAttributeNames: *

*
    *
  • *

    * To access an attribute whose name conflicts with a DynamoDB reserved * word. *

    *
  • *
  • *

    * To create a placeholder for repeating occurrences of an attribute name in * an expression. *

    *
  • *
  • *

    * To prevent special characters in an attribute name from being * misinterpreted in an expression. *

    *
  • *
*

* Use the # character in an expression to dereference an attribute * name. For example, consider the following attribute name: *

*
    *
  • *

    * Percentile *

    *
  • *
*

* The name of this attribute conflicts with a reserved word, so it cannot * be used directly in an expression. (For the complete list of reserved * words, see Reserved Words in the Amazon DynamoDB Developer Guide). To * work around this, you could specify the following for * ExpressionAttributeNames: *

*
    *
  • *

    * {"#P":"Percentile"} *

    *
  • *
*

* You could then use this substitution in an expression, as in this * example: *

*
    *
  • *

    * #P = :val *

    *
  • *
* *

* Tokens that begin with the : character are expression attribute * values, which are placeholders for the actual value at runtime. *

*
*

* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer * Guide. *

*/ private java.util.Map expressionAttributeNames; /** *

* One or more values that can be substituted in an expression. *

*

* Use the : (colon) character in an expression to dereference an * attribute value. For example, suppose that you wanted to check whether * the value of the ProductStatus attribute was one of the following: *

*

* Available | Backordered | Discontinued *

*

* You would first need to specify ExpressionAttributeValues as * follows: *

*

* { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} } *

*

* You could then use these values in an expression, such as this: *

*

* ProductStatus IN (:avail, :back, :disc) *

*

* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide. *

*/ private java.util.Map expressionAttributeValues; /** * Default constructor for UpdateItemRequest object. Callers should use the * setter or fluent setter (with...) methods to initialize any additional * object members. */ public UpdateItemRequest() { } /** * Constructs a new UpdateItemRequest 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 item to update. *

* @param key

* The primary key of the item to be updated. Each element * consists of an attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. * For example, with a simple primary key, you only need to * provide a value for the partition key. For a composite primary * key, you must provide values for both the partition key and * the sort key. *

* @param attributeUpdates

* This is a legacy parameter. Use UpdateExpression * instead. For more information, see AttributeUpdates in the Amazon DynamoDB Developer * Guide. *

*/ public UpdateItemRequest(String tableName, java.util.Map key, java.util.Map attributeUpdates) { setTableName(tableName); setKey(key); setAttributeUpdates(attributeUpdates); } /** * Constructs a new UpdateItemRequest 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 item to update. *

* @param key

* The primary key of the item to be updated. Each element * consists of an attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. * For example, with a simple primary key, you only need to * provide a value for the partition key. For a composite primary * key, you must provide values for both the partition key and * the sort key. *

* @param attributeUpdates

* This is a legacy parameter. Use UpdateExpression * instead. For more information, see AttributeUpdates in the Amazon DynamoDB Developer * Guide. *

* @param returnValues

* Use ReturnValues if you want to get the item * attributes as they appear before or after they are updated. * For UpdateItem, the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not * specified, or if its value is NONE, then nothing * is returned. (This setting is the default for * ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the * item, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated * attributes, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the * item, as they appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated * attributes, as they appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a * return value aside from the small network and processing * overhead of receiving a larger response. No read capacity * units are consumed. *

*

* The values returned are strongly consistent. *

*/ public UpdateItemRequest(String tableName, java.util.Map key, java.util.Map attributeUpdates, String returnValues) { setTableName(tableName); setKey(key); setAttributeUpdates(attributeUpdates); setReturnValues(returnValues); } /** * Constructs a new UpdateItemRequest 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 item to update. *

* @param key

* The primary key of the item to be updated. Each element * consists of an attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. * For example, with a simple primary key, you only need to * provide a value for the partition key. For a composite primary * key, you must provide values for both the partition key and * the sort key. *

* @param attributeUpdates

* This is a legacy parameter. Use UpdateExpression * instead. For more information, see AttributeUpdates in the Amazon DynamoDB Developer * Guide. *

* @param returnValues

* Use ReturnValues if you want to get the item * attributes as they appear before or after they are updated. * For UpdateItem, the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not * specified, or if its value is NONE, then nothing * is returned. (This setting is the default for * ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the * item, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated * attributes, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the * item, as they appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated * attributes, as they appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a * return value aside from the small network and processing * overhead of receiving a larger response. No read capacity * units are consumed. *

*

* The values returned are strongly consistent. *

*/ public UpdateItemRequest(String tableName, java.util.Map key, java.util.Map attributeUpdates, ReturnValue returnValues) { setTableName(tableName); setKey(key); setAttributeUpdates(attributeUpdates); setReturnValues(returnValues.toString()); } /** *

* The name of the table containing the item to update. *

*

* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
* * @return

* The name of the table containing the item to update. *

*/ public String getTableName() { return tableName; } /** *

* The name of the table containing the item to update. *

*

* Constraints:
* Length: 3 - 255
* Pattern: [a-zA-Z0-9_.-]+
* * @param tableName

* The name of the table containing the item to update. *

*/ public void setTableName(String tableName) { this.tableName = tableName; } /** *

* The name of the table containing the item to update. *

*

* 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 item to update. *

* @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest withTableName(String tableName) { this.tableName = tableName; return this; } /** *

* The primary key of the item to be updated. Each element consists of an * attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. For example, * with a simple primary key, you only need to provide a value for the * partition key. For a composite primary key, you must provide values for * both the partition key and the sort key. *

* * @return

* The primary key of the item to be updated. Each element consists * of an attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. For * example, with a simple primary key, you only need to provide a * value for the partition key. For a composite primary key, you * must provide values for both the partition key and the sort key. *

*/ public java.util.Map getKey() { return key; } /** *

* The primary key of the item to be updated. Each element consists of an * attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. For example, * with a simple primary key, you only need to provide a value for the * partition key. For a composite primary key, you must provide values for * both the partition key and the sort key. *

* * @param key

* The primary key of the item to be updated. Each element * consists of an attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. * For example, with a simple primary key, you only need to * provide a value for the partition key. For a composite primary * key, you must provide values for both the partition key and * the sort key. *

*/ public void setKey(java.util.Map key) { this.key = key; } /** *

* The primary key of the item to be updated. Each element consists of an * attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. For example, * with a simple primary key, you only need to provide a value for the * partition key. For a composite primary key, you must provide values for * both the partition key and the sort key. *

*

* Returns a reference to this object so that method calls can be chained * together. * * @param key

* The primary key of the item to be updated. Each element * consists of an attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. * For example, with a simple primary key, you only need to * provide a value for the partition key. For a composite primary * key, you must provide values for both the partition key and * the sort key. *

* @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest withKey(java.util.Map key) { this.key = key; return this; } /** *

* The primary key of the item to be updated. Each element consists of an * attribute name and a value for that attribute. *

*

* For the primary key, you must provide all of the attributes. For example, * with a simple primary key, you only need to provide a value for the * partition key. For a composite primary key, you must provide values for * both the partition key and the sort key. *

*

* The method adds a new key-value pair into Key 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 Key. * @param value The corresponding value of the entry to be added into Key. * @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest addKeyEntry(String key, AttributeValue value) { if (null == this.key) { this.key = new java.util.HashMap(); } if (this.key.containsKey(key)) throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided."); this.key.put(key, value); return this; } /** * Removes all the entries added into Key. *

* Returns a reference to this object so that method calls can be chained * together. */ public UpdateItemRequest clearKeyEntries() { this.key = null; return this; } /** *

* This is a legacy parameter. Use UpdateExpression instead. * For more information, see AttributeUpdates in the Amazon DynamoDB Developer Guide. *

* * @return

* This is a legacy parameter. Use UpdateExpression * instead. For more information, see AttributeUpdates in the Amazon DynamoDB Developer * Guide. *

*/ public java.util.Map getAttributeUpdates() { return attributeUpdates; } /** *

* This is a legacy parameter. Use UpdateExpression instead. * For more information, see AttributeUpdates in the Amazon DynamoDB Developer Guide. *

* * @param attributeUpdates

* This is a legacy parameter. Use UpdateExpression * instead. For more information, see AttributeUpdates in the Amazon DynamoDB Developer * Guide. *

*/ public void setAttributeUpdates(java.util.Map attributeUpdates) { this.attributeUpdates = attributeUpdates; } /** *

* This is a legacy parameter. Use UpdateExpression instead. * For more information, see AttributeUpdates in the Amazon DynamoDB Developer Guide. *

*

* Returns a reference to this object so that method calls can be chained * together. * * @param attributeUpdates

* This is a legacy parameter. Use UpdateExpression * instead. For more information, see AttributeUpdates in the Amazon DynamoDB Developer * Guide. *

* @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest withAttributeUpdates( java.util.Map attributeUpdates) { this.attributeUpdates = attributeUpdates; return this; } /** *

* This is a legacy parameter. Use UpdateExpression instead. * For more information, see AttributeUpdates in the Amazon DynamoDB Developer Guide. *

*

* The method adds a new key-value pair into AttributeUpdates 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 AttributeUpdates. * @param value The corresponding value of the entry to be added into * AttributeUpdates. * @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest addAttributeUpdatesEntry(String key, AttributeValueUpdate value) { if (null == this.attributeUpdates) { this.attributeUpdates = new java.util.HashMap(); } if (this.attributeUpdates.containsKey(key)) throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided."); this.attributeUpdates.put(key, value); return this; } /** * Removes all the entries added into AttributeUpdates. *

* Returns a reference to this object so that method calls can be chained * together. */ public UpdateItemRequest clearAttributeUpdatesEntries() { this.attributeUpdates = null; return this; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see Expected in the Amazon DynamoDB Developer Guide. *

* * @return

* This is a legacy parameter. Use ConditionExpression * instead. For more information, see Expected in the Amazon DynamoDB Developer Guide. *

*/ public java.util.Map getExpected() { return expected; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see Expected in the Amazon DynamoDB Developer Guide. *

* * @param expected

* This is a legacy parameter. Use * ConditionExpression instead. For more * information, see Expected in the Amazon DynamoDB Developer Guide. *

*/ public void setExpected(java.util.Map expected) { this.expected = expected; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see Expected in the Amazon DynamoDB Developer Guide. *

*

* Returns a reference to this object so that method calls can be chained * together. * * @param expected

* This is a legacy parameter. Use * ConditionExpression instead. For more * information, see Expected in the Amazon DynamoDB Developer Guide. *

* @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest withExpected(java.util.Map expected) { this.expected = expected; return this; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see Expected in the Amazon DynamoDB Developer Guide. *

*

* The method adds a new key-value pair into Expected 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 Expected. * @param value The corresponding value of the entry to be added into * Expected. * @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest addExpectedEntry(String key, ExpectedAttributeValue value) { if (null == this.expected) { this.expected = new java.util.HashMap(); } if (this.expected.containsKey(key)) throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided."); this.expected.put(key, value); return this; } /** * Removes all the entries added into Expected. *

* Returns a reference to this object so that method calls can be chained * together. */ public UpdateItemRequest clearExpectedEntries() { this.expected = null; return this; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. *

*

* Constraints:
* Allowed Values: AND, OR * * @return

* This is a legacy parameter. Use ConditionExpression * instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer * Guide. *

* @see ConditionalOperator */ public String getConditionalOperator() { return conditionalOperator; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. *

*

* Constraints:
* Allowed Values: AND, OR * * @param conditionalOperator

* This is a legacy parameter. Use * ConditionExpression instead. For more * information, see ConditionalOperator in the Amazon DynamoDB Developer * Guide. *

* @see ConditionalOperator */ public void setConditionalOperator(String conditionalOperator) { this.conditionalOperator = conditionalOperator; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. *

*

* 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. Use * ConditionExpression instead. For more * information, see ConditionalOperator in the Amazon DynamoDB Developer * Guide. *

* @return A reference to this updated object so that method calls can be * chained together. * @see ConditionalOperator */ public UpdateItemRequest withConditionalOperator(String conditionalOperator) { this.conditionalOperator = conditionalOperator; return this; } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. *

*

* Constraints:
* Allowed Values: AND, OR * * @param conditionalOperator

* This is a legacy parameter. Use * ConditionExpression instead. For more * information, see ConditionalOperator in the Amazon DynamoDB Developer * Guide. *

* @see ConditionalOperator */ public void setConditionalOperator(ConditionalOperator conditionalOperator) { this.conditionalOperator = conditionalOperator.toString(); } /** *

* This is a legacy parameter. Use ConditionExpression instead. * For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. *

*

* 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. Use * ConditionExpression instead. For more * information, see ConditionalOperator in the Amazon DynamoDB Developer * Guide. *

* @return A reference to this updated object so that method calls can be * chained together. * @see ConditionalOperator */ public UpdateItemRequest withConditionalOperator(ConditionalOperator conditionalOperator) { this.conditionalOperator = conditionalOperator.toString(); return this; } /** *

* Use ReturnValues if you want to get the item attributes as * they appear before or after they are updated. For UpdateItem * , the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not specified, or if * its value is NONE, then nothing is returned. (This setting * is the default for ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the item, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated attributes, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the item, as they * appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated attributes, as they * appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a return value * aside from the small network and processing overhead of receiving a * larger response. No read capacity units are consumed. *

*

* The values returned are strongly consistent. *

*

* Constraints:
* Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW * * @return

* Use ReturnValues if you want to get the item * attributes as they appear before or after they are updated. For * UpdateItem, the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not * specified, or if its value is NONE, then nothing is * returned. (This setting is the default for * ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the item, * as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated attributes, * as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the item, * as they appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated attributes, * as they appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a return * value aside from the small network and processing overhead of * receiving a larger response. No read capacity units are consumed. *

*

* The values returned are strongly consistent. *

* @see ReturnValue */ public String getReturnValues() { return returnValues; } /** *

* Use ReturnValues if you want to get the item attributes as * they appear before or after they are updated. For UpdateItem * , the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not specified, or if * its value is NONE, then nothing is returned. (This setting * is the default for ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the item, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated attributes, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the item, as they * appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated attributes, as they * appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a return value * aside from the small network and processing overhead of receiving a * larger response. No read capacity units are consumed. *

*

* The values returned are strongly consistent. *

*

* Constraints:
* Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW * * @param returnValues

* Use ReturnValues if you want to get the item * attributes as they appear before or after they are updated. * For UpdateItem, the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not * specified, or if its value is NONE, then nothing * is returned. (This setting is the default for * ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the * item, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated * attributes, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the * item, as they appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated * attributes, as they appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a * return value aside from the small network and processing * overhead of receiving a larger response. No read capacity * units are consumed. *

*

* The values returned are strongly consistent. *

* @see ReturnValue */ public void setReturnValues(String returnValues) { this.returnValues = returnValues; } /** *

* Use ReturnValues if you want to get the item attributes as * they appear before or after they are updated. For UpdateItem * , the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not specified, or if * its value is NONE, then nothing is returned. (This setting * is the default for ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the item, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated attributes, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the item, as they * appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated attributes, as they * appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a return value * aside from the small network and processing overhead of receiving a * larger response. No read capacity units are consumed. *

*

* The values returned are strongly consistent. *

*

* Returns a reference to this object so that method calls can be chained * together. *

* Constraints:
* Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW * * @param returnValues

* Use ReturnValues if you want to get the item * attributes as they appear before or after they are updated. * For UpdateItem, the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not * specified, or if its value is NONE, then nothing * is returned. (This setting is the default for * ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the * item, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated * attributes, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the * item, as they appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated * attributes, as they appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a * return value aside from the small network and processing * overhead of receiving a larger response. No read capacity * units are consumed. *

*

* The values returned are strongly consistent. *

* @return A reference to this updated object so that method calls can be * chained together. * @see ReturnValue */ public UpdateItemRequest withReturnValues(String returnValues) { this.returnValues = returnValues; return this; } /** *

* Use ReturnValues if you want to get the item attributes as * they appear before or after they are updated. For UpdateItem * , the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not specified, or if * its value is NONE, then nothing is returned. (This setting * is the default for ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the item, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated attributes, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the item, as they * appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated attributes, as they * appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a return value * aside from the small network and processing overhead of receiving a * larger response. No read capacity units are consumed. *

*

* The values returned are strongly consistent. *

*

* Constraints:
* Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW * * @param returnValues

* Use ReturnValues if you want to get the item * attributes as they appear before or after they are updated. * For UpdateItem, the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not * specified, or if its value is NONE, then nothing * is returned. (This setting is the default for * ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the * item, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated * attributes, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the * item, as they appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated * attributes, as they appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a * return value aside from the small network and processing * overhead of receiving a larger response. No read capacity * units are consumed. *

*

* The values returned are strongly consistent. *

* @see ReturnValue */ public void setReturnValues(ReturnValue returnValues) { this.returnValues = returnValues.toString(); } /** *

* Use ReturnValues if you want to get the item attributes as * they appear before or after they are updated. For UpdateItem * , the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not specified, or if * its value is NONE, then nothing is returned. (This setting * is the default for ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the item, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated attributes, as they * appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the item, as they * appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated attributes, as they * appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a return value * aside from the small network and processing overhead of receiving a * larger response. No read capacity units are consumed. *

*

* The values returned are strongly consistent. *

*

* Returns a reference to this object so that method calls can be chained * together. *

* Constraints:
* Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW * * @param returnValues

* Use ReturnValues if you want to get the item * attributes as they appear before or after they are updated. * For UpdateItem, the valid values are: *

*
    *
  • *

    * NONE - If ReturnValues is not * specified, or if its value is NONE, then nothing * is returned. (This setting is the default for * ReturnValues.) *

    *
  • *
  • *

    * ALL_OLD - Returns all of the attributes of the * item, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_OLD - Returns only the updated * attributes, as they appeared before the UpdateItem operation. *

    *
  • *
  • *

    * ALL_NEW - Returns all of the attributes of the * item, as they appear after the UpdateItem operation. *

    *
  • *
  • *

    * UPDATED_NEW - Returns only the updated * attributes, as they appear after the UpdateItem operation. *

    *
  • *
*

* There is no additional cost associated with requesting a * return value aside from the small network and processing * overhead of receiving a larger response. No read capacity * units are consumed. *

*

* The values returned are strongly consistent. *

* @return A reference to this updated object so that method calls can be * chained together. * @see ReturnValue */ public UpdateItemRequest withReturnValues(ReturnValue returnValues) { this.returnValues = returnValues.toString(); 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 UpdateItemRequest 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 UpdateItemRequest withReturnConsumedCapacity( ReturnConsumedCapacity returnConsumedCapacity) { this.returnConsumedCapacity = returnConsumedCapacity.toString(); return this; } /** *

* Determines whether item collection metrics are returned. If set to * SIZE, the response includes statistics about item * collections, if any, that were modified during the operation are returned * in the response. If set to NONE (the default), no statistics * are returned. *

*

* Constraints:
* Allowed Values: SIZE, NONE * * @return

* Determines whether item collection metrics are returned. If set * to SIZE, the response includes statistics about item * collections, if any, that were modified during the operation are * returned in the response. If set to NONE (the * default), no statistics are returned. *

* @see ReturnItemCollectionMetrics */ public String getReturnItemCollectionMetrics() { return returnItemCollectionMetrics; } /** *

* Determines whether item collection metrics are returned. If set to * SIZE, the response includes statistics about item * collections, if any, that were modified during the operation are returned * in the response. If set to NONE (the default), no statistics * are returned. *

*

* Constraints:
* Allowed Values: SIZE, NONE * * @param returnItemCollectionMetrics

* Determines whether item collection metrics are returned. If * set to SIZE, the response includes statistics * about item collections, if any, that were modified during the * operation are returned in the response. If set to * NONE (the default), no statistics are returned. *

* @see ReturnItemCollectionMetrics */ public void setReturnItemCollectionMetrics(String returnItemCollectionMetrics) { this.returnItemCollectionMetrics = returnItemCollectionMetrics; } /** *

* Determines whether item collection metrics are returned. If set to * SIZE, the response includes statistics about item * collections, if any, that were modified during the operation are returned * in the response. If set to NONE (the default), no statistics * are returned. *

*

* Returns a reference to this object so that method calls can be chained * together. *

* Constraints:
* Allowed Values: SIZE, NONE * * @param returnItemCollectionMetrics

* Determines whether item collection metrics are returned. If * set to SIZE, the response includes statistics * about item collections, if any, that were modified during the * operation are returned in the response. If set to * NONE (the default), no statistics are returned. *

* @return A reference to this updated object so that method calls can be * chained together. * @see ReturnItemCollectionMetrics */ public UpdateItemRequest withReturnItemCollectionMetrics(String returnItemCollectionMetrics) { this.returnItemCollectionMetrics = returnItemCollectionMetrics; return this; } /** *

* Determines whether item collection metrics are returned. If set to * SIZE, the response includes statistics about item * collections, if any, that were modified during the operation are returned * in the response. If set to NONE (the default), no statistics * are returned. *

*

* Constraints:
* Allowed Values: SIZE, NONE * * @param returnItemCollectionMetrics

* Determines whether item collection metrics are returned. If * set to SIZE, the response includes statistics * about item collections, if any, that were modified during the * operation are returned in the response. If set to * NONE (the default), no statistics are returned. *

* @see ReturnItemCollectionMetrics */ public void setReturnItemCollectionMetrics( ReturnItemCollectionMetrics returnItemCollectionMetrics) { this.returnItemCollectionMetrics = returnItemCollectionMetrics.toString(); } /** *

* Determines whether item collection metrics are returned. If set to * SIZE, the response includes statistics about item * collections, if any, that were modified during the operation are returned * in the response. If set to NONE (the default), no statistics * are returned. *

*

* Returns a reference to this object so that method calls can be chained * together. *

* Constraints:
* Allowed Values: SIZE, NONE * * @param returnItemCollectionMetrics

* Determines whether item collection metrics are returned. If * set to SIZE, the response includes statistics * about item collections, if any, that were modified during the * operation are returned in the response. If set to * NONE (the default), no statistics are returned. *

* @return A reference to this updated object so that method calls can be * chained together. * @see ReturnItemCollectionMetrics */ public UpdateItemRequest withReturnItemCollectionMetrics( ReturnItemCollectionMetrics returnItemCollectionMetrics) { this.returnItemCollectionMetrics = returnItemCollectionMetrics.toString(); return this; } /** *

* An expression that defines one or more attributes to be updated, the * action to be performed on them, and new value(s) for them. *

*

* The following action values are available for * UpdateExpression. *

*
    *
  • *

    * SET - Adds one or more attributes and values to an item. If * any of these attribute already exist, they are replaced by the new * values. You can also use SET to add or subtract from an * attribute that is of type Number. For example: * SET myNum = myNum + :val *

    *

    * SET supports the following functions: *

    *
      *
    • *

      * if_not_exists (path, operand) - if the item does not contain * an attribute at the specified path, then if_not_exists * evaluates to operand; otherwise, it evaluates to path. You can use this * function to avoid overwriting an attribute that may already be present in * the item. *

      *
    • *
    • *

      * list_append (operand, operand) - evaluates to a list with a * new element added to it. You can append the new element to the start or * the end of the list by reversing the order of the operands. *

      *
    • *
    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * REMOVE - Removes one or more attributes from an item. *

    *
  • *
  • *

    * ADD - Adds the specified value to the item, if the attribute * does not already exist. If the attribute does exist, then the behavior of * ADD depends on the data type of the attribute: *

    *
      *
    • *

      * If the existing attribute is a number, and if Value is also * a number, then Value is mathematically added to the existing * attribute. If Value is a negative number, then it is * subtracted from the existing attribute. *

      * *

      * If you use ADD to increment or decrement a number value for * an item that doesn't exist before the update, DynamoDB uses * 0 as the initial value. *

      *

      * Similarly, if you use ADD for an existing item to increment * or decrement an attribute value that doesn't exist before the update, * DynamoDB uses 0 as the initial value. For example, suppose * that the item you want to update doesn't have an attribute named * itemcount, but you decide to ADD the number * 3 to this attribute anyway. DynamoDB will create the * itemcount attribute, set its initial value to 0, and * finally add 3 to it. The result will be a new * itemcount attribute in the item, with a value of 3. *

      *
    • *
    • *

      * If the existing data type is a set and if Value is also a * set, then Value is added to the existing set. For example, * if the attribute value is the set [1,2], and the * ADD action specified [3], then the final * attribute value is [1,2,3]. An error occurs if an * ADD action is specified for a set attribute and the * attribute type specified does not match the existing set type. *

      *

      * Both sets must have the same primitive data type. For example, if the * existing data type is a set of strings, the Value must also * be a set of strings. *

      *
    • *
    * *

    * The ADD action only supports Number and set data types. In * addition, ADD can only be used on top-level attributes, not * nested attributes. *

    *
  • *
  • *

    * DELETE - Deletes an element from a set. *

    *

    * If a set of values is specified, then those values are subtracted from * the old set. For example, if the attribute value was the set * [a,b,c] and the DELETE action specifies * [a,c], then the final attribute value is [b]. * Specifying an empty set is an error. *

    * *

    * The DELETE action only supports set data types. In addition, * DELETE can only be used on top-level attributes, not nested * attributes. *

    *
  • *
*

* You can have many actions in a single expression, such as the following: * SET a=:value1, b=:value2 DELETE :value3, :value4, :value5 *

*

* For more information on update expressions, see Modifying Items and Attributes in the Amazon DynamoDB Developer * Guide. *

* * @return

* An expression that defines one or more attributes to be updated, * the action to be performed on them, and new value(s) for them. *

*

* The following action values are available for * UpdateExpression. *

*
    *
  • *

    * SET - Adds one or more attributes and values to an * item. If any of these attribute already exist, they are replaced * by the new values. You can also use SET to add or * subtract from an attribute that is of type Number. For example: * SET myNum = myNum + :val *

    *

    * SET supports the following functions: *

    *
      *
    • *

      * if_not_exists (path, operand) - if the item does not * contain an attribute at the specified path, then * if_not_exists evaluates to operand; otherwise, it * evaluates to path. You can use this function to avoid overwriting * an attribute that may already be present in the item. *

      *
    • *
    • *

      * list_append (operand, operand) - evaluates to a list * with a new element added to it. You can append the new element to * the start or the end of the list by reversing the order of the * operands. *

      *
    • *
    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * REMOVE - Removes one or more attributes from an * item. *

    *
  • *
  • *

    * ADD - Adds the specified value to the item, if the * attribute does not already exist. If the attribute does exist, * then the behavior of ADD depends on the data type of * the attribute: *

    *
      *
    • *

      * If the existing attribute is a number, and if Value * is also a number, then Value is mathematically added * to the existing attribute. If Value is a negative * number, then it is subtracted from the existing attribute. *

      * *

      * If you use ADD to increment or decrement a number * value for an item that doesn't exist before the update, DynamoDB * uses 0 as the initial value. *

      *

      * Similarly, if you use ADD for an existing item to * increment or decrement an attribute value that doesn't exist * before the update, DynamoDB uses 0 as the initial * value. For example, suppose that the item you want to update * doesn't have an attribute named itemcount, but you decide * to ADD the number 3 to this attribute * anyway. DynamoDB will create the itemcount attribute, set * its initial value to 0, and finally add * 3 to it. The result will be a new itemcount * attribute in the item, with a value of 3. *

      *
    • *
    • *

      * If the existing data type is a set and if Value is * also a set, then Value is added to the existing set. * For example, if the attribute value is the set [1,2] * , and the ADD action specified [3], * then the final attribute value is [1,2,3]. An error * occurs if an ADD action is specified for a set * attribute and the attribute type specified does not match the * existing set type. *

      *

      * Both sets must have the same primitive data type. For example, if * the existing data type is a set of strings, the * Value must also be a set of strings. *

      *
    • *
    * *

    * The ADD action only supports Number and set data * types. In addition, ADD can only be used on * top-level attributes, not nested attributes. *

    *
  • *
  • *

    * DELETE - Deletes an element from a set. *

    *

    * If a set of values is specified, then those values are subtracted * from the old set. For example, if the attribute value was the set * [a,b,c] and the DELETE action specifies * [a,c], then the final attribute value is * [b]. Specifying an empty set is an error. *

    * *

    * The DELETE action only supports set data types. In * addition, DELETE can only be used on top-level * attributes, not nested attributes. *

    *
  • *
*

* You can have many actions in a single expression, such as the * following: * SET a=:value1, b=:value2 DELETE :value3, :value4, :value5 *

*

* For more information on update expressions, see Modifying Items and Attributes in the Amazon DynamoDB * Developer Guide. *

*/ public String getUpdateExpression() { return updateExpression; } /** *

* An expression that defines one or more attributes to be updated, the * action to be performed on them, and new value(s) for them. *

*

* The following action values are available for * UpdateExpression. *

*
    *
  • *

    * SET - Adds one or more attributes and values to an item. If * any of these attribute already exist, they are replaced by the new * values. You can also use SET to add or subtract from an * attribute that is of type Number. For example: * SET myNum = myNum + :val *

    *

    * SET supports the following functions: *

    *
      *
    • *

      * if_not_exists (path, operand) - if the item does not contain * an attribute at the specified path, then if_not_exists * evaluates to operand; otherwise, it evaluates to path. You can use this * function to avoid overwriting an attribute that may already be present in * the item. *

      *
    • *
    • *

      * list_append (operand, operand) - evaluates to a list with a * new element added to it. You can append the new element to the start or * the end of the list by reversing the order of the operands. *

      *
    • *
    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * REMOVE - Removes one or more attributes from an item. *

    *
  • *
  • *

    * ADD - Adds the specified value to the item, if the attribute * does not already exist. If the attribute does exist, then the behavior of * ADD depends on the data type of the attribute: *

    *
      *
    • *

      * If the existing attribute is a number, and if Value is also * a number, then Value is mathematically added to the existing * attribute. If Value is a negative number, then it is * subtracted from the existing attribute. *

      * *

      * If you use ADD to increment or decrement a number value for * an item that doesn't exist before the update, DynamoDB uses * 0 as the initial value. *

      *

      * Similarly, if you use ADD for an existing item to increment * or decrement an attribute value that doesn't exist before the update, * DynamoDB uses 0 as the initial value. For example, suppose * that the item you want to update doesn't have an attribute named * itemcount, but you decide to ADD the number * 3 to this attribute anyway. DynamoDB will create the * itemcount attribute, set its initial value to 0, and * finally add 3 to it. The result will be a new * itemcount attribute in the item, with a value of 3. *

      *
    • *
    • *

      * If the existing data type is a set and if Value is also a * set, then Value is added to the existing set. For example, * if the attribute value is the set [1,2], and the * ADD action specified [3], then the final * attribute value is [1,2,3]. An error occurs if an * ADD action is specified for a set attribute and the * attribute type specified does not match the existing set type. *

      *

      * Both sets must have the same primitive data type. For example, if the * existing data type is a set of strings, the Value must also * be a set of strings. *

      *
    • *
    * *

    * The ADD action only supports Number and set data types. In * addition, ADD can only be used on top-level attributes, not * nested attributes. *

    *
  • *
  • *

    * DELETE - Deletes an element from a set. *

    *

    * If a set of values is specified, then those values are subtracted from * the old set. For example, if the attribute value was the set * [a,b,c] and the DELETE action specifies * [a,c], then the final attribute value is [b]. * Specifying an empty set is an error. *

    * *

    * The DELETE action only supports set data types. In addition, * DELETE can only be used on top-level attributes, not nested * attributes. *

    *
  • *
*

* You can have many actions in a single expression, such as the following: * SET a=:value1, b=:value2 DELETE :value3, :value4, :value5 *

*

* For more information on update expressions, see Modifying Items and Attributes in the Amazon DynamoDB Developer * Guide. *

* * @param updateExpression

* An expression that defines one or more attributes to be * updated, the action to be performed on them, and new value(s) * for them. *

*

* The following action values are available for * UpdateExpression. *

*
    *
  • *

    * SET - Adds one or more attributes and values to * an item. If any of these attribute already exist, they are * replaced by the new values. You can also use SET * to add or subtract from an attribute that is of type Number. * For example: SET myNum = myNum + :val *

    *

    * SET supports the following functions: *

    *
      *
    • *

      * if_not_exists (path, operand) - if the item does * not contain an attribute at the specified path, then * if_not_exists evaluates to operand; otherwise, it * evaluates to path. You can use this function to avoid * overwriting an attribute that may already be present in the * item. *

      *
    • *
    • *

      * list_append (operand, operand) - evaluates to a * list with a new element added to it. You can append the new * element to the start or the end of the list by reversing the * order of the operands. *

      *
    • *
    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * REMOVE - Removes one or more attributes from an * item. *

    *
  • *
  • *

    * ADD - Adds the specified value to the item, if * the attribute does not already exist. If the attribute does * exist, then the behavior of ADD depends on the * data type of the attribute: *

    *
      *
    • *

      * If the existing attribute is a number, and if * Value is also a number, then Value * is mathematically added to the existing attribute. If * Value is a negative number, then it is subtracted * from the existing attribute. *

      * *

      * If you use ADD to increment or decrement a number * value for an item that doesn't exist before the update, * DynamoDB uses 0 as the initial value. *

      *

      * Similarly, if you use ADD for an existing item to * increment or decrement an attribute value that doesn't exist * before the update, DynamoDB uses 0 as the initial * value. For example, suppose that the item you want to update * doesn't have an attribute named itemcount, but you * decide to ADD the number 3 to this * attribute anyway. DynamoDB will create the itemcount * attribute, set its initial value to 0, and * finally add 3 to it. The result will be a new * itemcount attribute in the item, with a value of * 3. *

      *
    • *
    • *

      * If the existing data type is a set and if Value * is also a set, then Value is added to the * existing set. For example, if the attribute value is the set * [1,2], and the ADD action specified * [3], then the final attribute value is * [1,2,3]. An error occurs if an ADD * action is specified for a set attribute and the attribute type * specified does not match the existing set type. *

      *

      * Both sets must have the same primitive data type. For example, * if the existing data type is a set of strings, the * Value must also be a set of strings. *

      *
    • *
    * *

    * The ADD action only supports Number and set data * types. In addition, ADD can only be used on * top-level attributes, not nested attributes. *

    *
  • *
  • *

    * DELETE - Deletes an element from a set. *

    *

    * If a set of values is specified, then those values are * subtracted from the old set. For example, if the attribute * value was the set [a,b,c] and the * DELETE action specifies [a,c], then * the final attribute value is [b]. Specifying an * empty set is an error. *

    * *

    * The DELETE action only supports set data types. * In addition, DELETE can only be used on top-level * attributes, not nested attributes. *

    *
  • *
*

* You can have many actions in a single expression, such as the * following: * SET a=:value1, b=:value2 DELETE :value3, :value4, :value5 *

*

* For more information on update expressions, see Modifying Items and Attributes in the Amazon DynamoDB * Developer Guide. *

*/ public void setUpdateExpression(String updateExpression) { this.updateExpression = updateExpression; } /** *

* An expression that defines one or more attributes to be updated, the * action to be performed on them, and new value(s) for them. *

*

* The following action values are available for * UpdateExpression. *

*
    *
  • *

    * SET - Adds one or more attributes and values to an item. If * any of these attribute already exist, they are replaced by the new * values. You can also use SET to add or subtract from an * attribute that is of type Number. For example: * SET myNum = myNum + :val *

    *

    * SET supports the following functions: *

    *
      *
    • *

      * if_not_exists (path, operand) - if the item does not contain * an attribute at the specified path, then if_not_exists * evaluates to operand; otherwise, it evaluates to path. You can use this * function to avoid overwriting an attribute that may already be present in * the item. *

      *
    • *
    • *

      * list_append (operand, operand) - evaluates to a list with a * new element added to it. You can append the new element to the start or * the end of the list by reversing the order of the operands. *

      *
    • *
    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * REMOVE - Removes one or more attributes from an item. *

    *
  • *
  • *

    * ADD - Adds the specified value to the item, if the attribute * does not already exist. If the attribute does exist, then the behavior of * ADD depends on the data type of the attribute: *

    *
      *
    • *

      * If the existing attribute is a number, and if Value is also * a number, then Value is mathematically added to the existing * attribute. If Value is a negative number, then it is * subtracted from the existing attribute. *

      * *

      * If you use ADD to increment or decrement a number value for * an item that doesn't exist before the update, DynamoDB uses * 0 as the initial value. *

      *

      * Similarly, if you use ADD for an existing item to increment * or decrement an attribute value that doesn't exist before the update, * DynamoDB uses 0 as the initial value. For example, suppose * that the item you want to update doesn't have an attribute named * itemcount, but you decide to ADD the number * 3 to this attribute anyway. DynamoDB will create the * itemcount attribute, set its initial value to 0, and * finally add 3 to it. The result will be a new * itemcount attribute in the item, with a value of 3. *

      *
    • *
    • *

      * If the existing data type is a set and if Value is also a * set, then Value is added to the existing set. For example, * if the attribute value is the set [1,2], and the * ADD action specified [3], then the final * attribute value is [1,2,3]. An error occurs if an * ADD action is specified for a set attribute and the * attribute type specified does not match the existing set type. *

      *

      * Both sets must have the same primitive data type. For example, if the * existing data type is a set of strings, the Value must also * be a set of strings. *

      *
    • *
    * *

    * The ADD action only supports Number and set data types. In * addition, ADD can only be used on top-level attributes, not * nested attributes. *

    *
  • *
  • *

    * DELETE - Deletes an element from a set. *

    *

    * If a set of values is specified, then those values are subtracted from * the old set. For example, if the attribute value was the set * [a,b,c] and the DELETE action specifies * [a,c], then the final attribute value is [b]. * Specifying an empty set is an error. *

    * *

    * The DELETE action only supports set data types. In addition, * DELETE can only be used on top-level attributes, not nested * attributes. *

    *
  • *
*

* You can have many actions in a single expression, such as the following: * SET a=:value1, b=:value2 DELETE :value3, :value4, :value5 *

*

* For more information on update expressions, see Modifying Items and Attributes in the Amazon DynamoDB Developer * Guide. *

*

* Returns a reference to this object so that method calls can be chained * together. * * @param updateExpression

* An expression that defines one or more attributes to be * updated, the action to be performed on them, and new value(s) * for them. *

*

* The following action values are available for * UpdateExpression. *

*
    *
  • *

    * SET - Adds one or more attributes and values to * an item. If any of these attribute already exist, they are * replaced by the new values. You can also use SET * to add or subtract from an attribute that is of type Number. * For example: SET myNum = myNum + :val *

    *

    * SET supports the following functions: *

    *
      *
    • *

      * if_not_exists (path, operand) - if the item does * not contain an attribute at the specified path, then * if_not_exists evaluates to operand; otherwise, it * evaluates to path. You can use this function to avoid * overwriting an attribute that may already be present in the * item. *

      *
    • *
    • *

      * list_append (operand, operand) - evaluates to a * list with a new element added to it. You can append the new * element to the start or the end of the list by reversing the * order of the operands. *

      *
    • *
    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * REMOVE - Removes one or more attributes from an * item. *

    *
  • *
  • *

    * ADD - Adds the specified value to the item, if * the attribute does not already exist. If the attribute does * exist, then the behavior of ADD depends on the * data type of the attribute: *

    *
      *
    • *

      * If the existing attribute is a number, and if * Value is also a number, then Value * is mathematically added to the existing attribute. If * Value is a negative number, then it is subtracted * from the existing attribute. *

      * *

      * If you use ADD to increment or decrement a number * value for an item that doesn't exist before the update, * DynamoDB uses 0 as the initial value. *

      *

      * Similarly, if you use ADD for an existing item to * increment or decrement an attribute value that doesn't exist * before the update, DynamoDB uses 0 as the initial * value. For example, suppose that the item you want to update * doesn't have an attribute named itemcount, but you * decide to ADD the number 3 to this * attribute anyway. DynamoDB will create the itemcount * attribute, set its initial value to 0, and * finally add 3 to it. The result will be a new * itemcount attribute in the item, with a value of * 3. *

      *
    • *
    • *

      * If the existing data type is a set and if Value * is also a set, then Value is added to the * existing set. For example, if the attribute value is the set * [1,2], and the ADD action specified * [3], then the final attribute value is * [1,2,3]. An error occurs if an ADD * action is specified for a set attribute and the attribute type * specified does not match the existing set type. *

      *

      * Both sets must have the same primitive data type. For example, * if the existing data type is a set of strings, the * Value must also be a set of strings. *

      *
    • *
    * *

    * The ADD action only supports Number and set data * types. In addition, ADD can only be used on * top-level attributes, not nested attributes. *

    *
  • *
  • *

    * DELETE - Deletes an element from a set. *

    *

    * If a set of values is specified, then those values are * subtracted from the old set. For example, if the attribute * value was the set [a,b,c] and the * DELETE action specifies [a,c], then * the final attribute value is [b]. Specifying an * empty set is an error. *

    * *

    * The DELETE action only supports set data types. * In addition, DELETE can only be used on top-level * attributes, not nested attributes. *

    *
  • *
*

* You can have many actions in a single expression, such as the * following: * SET a=:value1, b=:value2 DELETE :value3, :value4, :value5 *

*

* For more information on update expressions, see Modifying Items and Attributes in the Amazon DynamoDB * Developer Guide. *

* @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest withUpdateExpression(String updateExpression) { this.updateExpression = updateExpression; return this; } /** *

* A condition that must be satisfied in order for a conditional update to * succeed. *

*

* An expression can contain any of the following: *

*
    *
  • *

    * Functions: * attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size *

    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * Comparison operators: * = | <> | < | > | <= | >= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

* For more information on condition expressions, see Specifying Conditions in the Amazon DynamoDB Developer Guide. *

* * @return

* A condition that must be satisfied in order for a conditional * update to succeed. *

*

* An expression can contain any of the following: *

*
    *
  • *

    * Functions: * attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size *

    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * Comparison operators: * = | <> | < | > | <= | >= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

* For more information on condition expressions, see Specifying Conditions in the Amazon DynamoDB Developer * Guide. *

*/ public String getConditionExpression() { return conditionExpression; } /** *

* A condition that must be satisfied in order for a conditional update to * succeed. *

*

* An expression can contain any of the following: *

*
    *
  • *

    * Functions: * attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size *

    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * Comparison operators: * = | <> | < | > | <= | >= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

* For more information on condition expressions, see Specifying Conditions in the Amazon DynamoDB Developer Guide. *

* * @param conditionExpression

* A condition that must be satisfied in order for a conditional * update to succeed. *

*

* An expression can contain any of the following: *

*
    *
  • *

    * Functions: * attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size *

    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * Comparison operators: * = | <> | < | > | <= | >= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

* For more information on condition expressions, see Specifying Conditions in the Amazon DynamoDB Developer * Guide. *

*/ public void setConditionExpression(String conditionExpression) { this.conditionExpression = conditionExpression; } /** *

* A condition that must be satisfied in order for a conditional update to * succeed. *

*

* An expression can contain any of the following: *

*
    *
  • *

    * Functions: * attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size *

    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * Comparison operators: * = | <> | < | > | <= | >= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

* For more information on condition expressions, see Specifying Conditions in the Amazon DynamoDB Developer Guide. *

*

* Returns a reference to this object so that method calls can be chained * together. * * @param conditionExpression

* A condition that must be satisfied in order for a conditional * update to succeed. *

*

* An expression can contain any of the following: *

*
    *
  • *

    * Functions: * attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size *

    *

    * These function names are case-sensitive. *

    *
  • *
  • *

    * Comparison operators: * = | <> | < | > | <= | >= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

* For more information on condition expressions, 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 UpdateItemRequest withConditionExpression(String conditionExpression) { this.conditionExpression = conditionExpression; return this; } /** *

* One or more substitution tokens for attribute names in an expression. The * following are some use cases for using * ExpressionAttributeNames: *

*
    *
  • *

    * To access an attribute whose name conflicts with a DynamoDB reserved * word. *

    *
  • *
  • *

    * To create a placeholder for repeating occurrences of an attribute name in * an expression. *

    *
  • *
  • *

    * To prevent special characters in an attribute name from being * misinterpreted in an expression. *

    *
  • *
*

* Use the # character in an expression to dereference an attribute * name. For example, consider the following attribute name: *

*
    *
  • *

    * Percentile *

    *
  • *
*

* The name of this attribute conflicts with a reserved word, so it cannot * be used directly in an expression. (For the complete list of reserved * words, see Reserved Words in the Amazon DynamoDB Developer Guide). To * work around this, you could specify the following for * ExpressionAttributeNames: *

*
    *
  • *

    * {"#P":"Percentile"} *

    *
  • *
*

* You could then use this substitution in an expression, as in this * example: *

*
    *
  • *

    * #P = :val *

    *
  • *
* *

* Tokens that begin with the : character are expression attribute * values, which are placeholders for the actual value at runtime. *

*
*

* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer * Guide. *

* * @return

* One or more substitution tokens for attribute names in an * expression. The following are some use cases for using * ExpressionAttributeNames: *

*
    *
  • *

    * To access an attribute whose name conflicts with a DynamoDB * reserved word. *

    *
  • *
  • *

    * To create a placeholder for repeating occurrences of an attribute * name in an expression. *

    *
  • *
  • *

    * To prevent special characters in an attribute name from being * misinterpreted in an expression. *

    *
  • *
*

* Use the # character in an expression to dereference an * attribute name. For example, consider the following attribute * name: *

*
    *
  • *

    * Percentile *

    *
  • *
*

* The name of this attribute conflicts with a reserved word, so it * cannot be used directly in an expression. (For the complete list * of reserved words, see Reserved Words in the Amazon DynamoDB Developer * Guide). To work around this, you could specify the following * for ExpressionAttributeNames: *

*
    *
  • *

    * {"#P":"Percentile"} *

    *
  • *
*

* You could then use this substitution in an expression, as in this * example: *

*
    *
  • *

    * #P = :val *

    *
  • *
* *

* Tokens that begin with the : character are expression * attribute values, which are placeholders for the actual value * at runtime. *

*
*

* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB * Developer Guide. *

*/ public java.util.Map getExpressionAttributeNames() { return expressionAttributeNames; } /** *

* One or more substitution tokens for attribute names in an expression. The * following are some use cases for using * ExpressionAttributeNames: *

*
    *
  • *

    * To access an attribute whose name conflicts with a DynamoDB reserved * word. *

    *
  • *
  • *

    * To create a placeholder for repeating occurrences of an attribute name in * an expression. *

    *
  • *
  • *

    * To prevent special characters in an attribute name from being * misinterpreted in an expression. *

    *
  • *
*

* Use the # character in an expression to dereference an attribute * name. For example, consider the following attribute name: *

*
    *
  • *

    * Percentile *

    *
  • *
*

* The name of this attribute conflicts with a reserved word, so it cannot * be used directly in an expression. (For the complete list of reserved * words, see Reserved Words in the Amazon DynamoDB Developer Guide). To * work around this, you could specify the following for * ExpressionAttributeNames: *

*
    *
  • *

    * {"#P":"Percentile"} *

    *
  • *
*

* You could then use this substitution in an expression, as in this * example: *

*
    *
  • *

    * #P = :val *

    *
  • *
* *

* Tokens that begin with the : character are expression attribute * values, which are placeholders for the actual value at runtime. *

*
*

* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer * Guide. *

* * @param expressionAttributeNames

* One or more substitution tokens for attribute names in an * expression. The following are some use cases for using * ExpressionAttributeNames: *

*
    *
  • *

    * To access an attribute whose name conflicts with a DynamoDB * reserved word. *

    *
  • *
  • *

    * To create a placeholder for repeating occurrences of an * attribute name in an expression. *

    *
  • *
  • *

    * To prevent special characters in an attribute name from being * misinterpreted in an expression. *

    *
  • *
*

* Use the # character in an expression to dereference an * attribute name. For example, consider the following attribute * name: *

*
    *
  • *

    * Percentile *

    *
  • *
*

* The name of this attribute conflicts with a reserved word, so * it cannot be used directly in an expression. (For the complete * list of reserved words, see Reserved Words in the Amazon DynamoDB Developer * Guide). To work around this, you could specify the * following for ExpressionAttributeNames: *

*
    *
  • *

    * {"#P":"Percentile"} *

    *
  • *
*

* You could then use this substitution in an expression, as in * this example: *

*
    *
  • *

    * #P = :val *

    *
  • *
* *

* Tokens that begin with the : character are * expression attribute values, which are placeholders for * the actual value at runtime. *

*
*

* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB * Developer Guide. *

*/ public void setExpressionAttributeNames(java.util.Map expressionAttributeNames) { this.expressionAttributeNames = expressionAttributeNames; } /** *

* One or more substitution tokens for attribute names in an expression. The * following are some use cases for using * ExpressionAttributeNames: *

*
    *
  • *

    * To access an attribute whose name conflicts with a DynamoDB reserved * word. *

    *
  • *
  • *

    * To create a placeholder for repeating occurrences of an attribute name in * an expression. *

    *
  • *
  • *

    * To prevent special characters in an attribute name from being * misinterpreted in an expression. *

    *
  • *
*

* Use the # character in an expression to dereference an attribute * name. For example, consider the following attribute name: *

*
    *
  • *

    * Percentile *

    *
  • *
*

* The name of this attribute conflicts with a reserved word, so it cannot * be used directly in an expression. (For the complete list of reserved * words, see Reserved Words in the Amazon DynamoDB Developer Guide). To * work around this, you could specify the following for * ExpressionAttributeNames: *

*
    *
  • *

    * {"#P":"Percentile"} *

    *
  • *
*

* You could then use this substitution in an expression, as in this * example: *

*
    *
  • *

    * #P = :val *

    *
  • *
* *

* Tokens that begin with the : character are expression attribute * values, which are placeholders for the actual value at runtime. *

*
*

* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer * Guide. *

*

* 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 UpdateItemRequest withExpressionAttributeNames( java.util.Map expressionAttributeNames) { this.expressionAttributeNames = 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. * @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest 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 UpdateItemRequest 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 UpdateItemRequest withExpressionAttributeValues( java.util.Map expressionAttributeValues) { this.expressionAttributeValues = 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. * @return A reference to this updated object so that method calls can be * chained together. */ public UpdateItemRequest 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 UpdateItemRequest clearExpressionAttributeValuesEntries() { this.expressionAttributeValues = null; return this; } /** * Returns a string representation of this object; useful for testing and * debugging. * * @return A string representation of this object. * @see java.lang.Object#toString() */ @Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append("{"); if (getTableName() != null) sb.append("TableName: " + getTableName() + ","); if (getKey() != null) sb.append("Key: " + getKey() + ","); if (getAttributeUpdates() != null) sb.append("AttributeUpdates: " + getAttributeUpdates() + ","); if (getExpected() != null) sb.append("Expected: " + getExpected() + ","); if (getConditionalOperator() != null) sb.append("ConditionalOperator: " + getConditionalOperator() + ","); if (getReturnValues() != null) sb.append("ReturnValues: " + getReturnValues() + ","); if (getReturnConsumedCapacity() != null) sb.append("ReturnConsumedCapacity: " + getReturnConsumedCapacity() + ","); if (getReturnItemCollectionMetrics() != null) sb.append("ReturnItemCollectionMetrics: " + getReturnItemCollectionMetrics() + ","); if (getUpdateExpression() != null) sb.append("UpdateExpression: " + getUpdateExpression() + ","); if (getConditionExpression() != null) sb.append("ConditionExpression: " + getConditionExpression() + ","); if (getExpressionAttributeNames() != null) sb.append("ExpressionAttributeNames: " + getExpressionAttributeNames() + ","); if (getExpressionAttributeValues() != null) sb.append("ExpressionAttributeValues: " + getExpressionAttributeValues()); 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 + ((getKey() == null) ? 0 : getKey().hashCode()); hashCode = prime * hashCode + ((getAttributeUpdates() == null) ? 0 : getAttributeUpdates().hashCode()); hashCode = prime * hashCode + ((getExpected() == null) ? 0 : getExpected().hashCode()); hashCode = prime * hashCode + ((getConditionalOperator() == null) ? 0 : getConditionalOperator().hashCode()); hashCode = prime * hashCode + ((getReturnValues() == null) ? 0 : getReturnValues().hashCode()); hashCode = prime * hashCode + ((getReturnConsumedCapacity() == null) ? 0 : getReturnConsumedCapacity() .hashCode()); hashCode = prime * hashCode + ((getReturnItemCollectionMetrics() == null) ? 0 : getReturnItemCollectionMetrics().hashCode()); hashCode = prime * hashCode + ((getUpdateExpression() == null) ? 0 : getUpdateExpression().hashCode()); hashCode = prime * hashCode + ((getConditionExpression() == null) ? 0 : getConditionExpression().hashCode()); hashCode = prime * hashCode + ((getExpressionAttributeNames() == null) ? 0 : getExpressionAttributeNames() .hashCode()); hashCode = prime * hashCode + ((getExpressionAttributeValues() == null) ? 0 : getExpressionAttributeValues() .hashCode()); return hashCode; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (obj instanceof UpdateItemRequest == false) return false; UpdateItemRequest other = (UpdateItemRequest) obj; if (other.getTableName() == null ^ this.getTableName() == null) return false; if (other.getTableName() != null && other.getTableName().equals(this.getTableName()) == false) return false; if (other.getKey() == null ^ this.getKey() == null) return false; if (other.getKey() != null && other.getKey().equals(this.getKey()) == false) return false; if (other.getAttributeUpdates() == null ^ this.getAttributeUpdates() == null) return false; if (other.getAttributeUpdates() != null && other.getAttributeUpdates().equals(this.getAttributeUpdates()) == false) return false; if (other.getExpected() == null ^ this.getExpected() == null) return false; if (other.getExpected() != null && other.getExpected().equals(this.getExpected()) == 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.getReturnValues() == null ^ this.getReturnValues() == null) return false; if (other.getReturnValues() != null && other.getReturnValues().equals(this.getReturnValues()) == 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.getReturnItemCollectionMetrics() == null ^ this.getReturnItemCollectionMetrics() == null) return false; if (other.getReturnItemCollectionMetrics() != null && other.getReturnItemCollectionMetrics().equals( this.getReturnItemCollectionMetrics()) == false) return false; if (other.getUpdateExpression() == null ^ this.getUpdateExpression() == null) return false; if (other.getUpdateExpression() != null && other.getUpdateExpression().equals(this.getUpdateExpression()) == false) return false; if (other.getConditionExpression() == null ^ this.getConditionExpression() == null) return false; if (other.getConditionExpression() != null && other.getConditionExpression().equals(this.getConditionExpression()) == false) return false; if (other.getExpressionAttributeNames() == null ^ this.getExpressionAttributeNames() == null) return false; if (other.getExpressionAttributeNames() != null && other.getExpressionAttributeNames().equals(this.getExpressionAttributeNames()) == false) return false; if (other.getExpressionAttributeValues() == null ^ this.getExpressionAttributeValues() == null) return false; if (other.getExpressionAttributeValues() != null && other.getExpressionAttributeValues().equals(this.getExpressionAttributeValues()) == false) return false; return true; } }





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