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The AWS Java SDK for Amazon DynamoDB module holds the client classes that are used for communicating with Amazon DynamoDB Service

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/*
 * Copyright 2011-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not
 * use this file except in compliance with the License. A copy of the License is
 * located at
 * 
 * http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package com.amazonaws.services.dynamodbv2.model;

import java.io.Serializable;
import com.amazonaws.AmazonWebServiceRequest;

/**
 * 

* Represents the input of a PutItem operation. *

*/ public class PutItemRequest extends AmazonWebServiceRequest implements Serializable, Cloneable { /** *

* The name of the table to contain the item. *

*/ private String tableName; /** *

* A map of attribute name/value pairs, one for each attribute. Only the * primary key attributes are required; you can optionally provide other * attribute name-value pairs for the item. *

*

* You must provide all of the attributes for the primary key. 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 both values * for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then the * data types for those attributes must match those of the schema in the * table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue object. *

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

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

*
*

* A map of attribute/condition pairs. Expected provides a * conditional block for the PutItem operation. *

* *

* This parameter does not support attributes of type List or Map. *

*
*

* Each element of Expected consists of an attribute name, a * comparison operator, and one or more values. DynamoDB compares the * attribute with the value(s) you supplied, using the comparison operator. * For each Expected element, the result of the evaluation is either * true or false. *

*

* If you specify more than one element in the Expected map, then by * default all of the conditions must evaluate to true. In other words, the * conditions are ANDed together. (You can use the * ConditionalOperator parameter to OR the conditions instead. If you * do this, then at least one of the conditions must evaluate to true, * rather than all of them.) *

*

* If the Expected map evaluates to true, then the conditional * operation succeeds; otherwise, it fails. *

*

* Expected contains the following: *

*
    *
  • *

    * AttributeValueList - One or more values to evaluate against the * supplied attribute. The number of values in the list depends on the * ComparisonOperator being used. *

    *

    * For type Number, value comparisons are numeric. *

    *

    * String value comparisons for greater than, equals, or less than are based * on ASCII character code values. For example, a is greater * than A, and a is greater than B. * For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters. *

    *

    * For type Binary, DynamoDB treats each byte of the binary data as unsigned * when it compares binary values. *

    *
  • *
  • *

    * ComparisonOperator - A comparator for evaluating attributes in the * AttributeValueList. When performing the comparison, DynamoDB uses * strongly consistent reads. *

    *

    * The following comparison operators are available: *

    *

    * EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN *

    *

    * The following are descriptions of each comparison operator. *

    *
      *
    • *

      * EQ : Equal. EQ is supported for all datatypes, * including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, Binary, String Set, Number Set, or Binary * Set. If an item contains an AttributeValue element of a different * type than the one provided in the request, the value does not match. For * example, {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NE : Not equal. NE is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, Binary, String Set, Number Set, or Binary Set. If an * item contains an AttributeValue of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not equal {"NS":["6", "2", "1"]} * . *

      *

    • *
    • *

      * LE : Less than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LT : Less than. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, or Binary (not a set type). If an item contains an * AttributeValue element of a different type than the one provided * in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GE : Greater than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GT : Greater than. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NOT_NULL : The attribute exists. NOT_NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the existence of an attribute, not its data type. * If the data type of attribute "a" is null, and you evaluate * it using NOT_NULL, the result is a Boolean true. This * result is because the attribute "a" exists; its data type is * not relevant to the NOT_NULL comparison operator. *

      *
    • *
    • *

      * NULL : The attribute does not exist. NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the nonexistence of an attribute, not its data * type. If the data type of attribute "a" is null, and you * evaluate it using NULL, the result is a Boolean * false. This is because the attribute "a" exists; its * data type is not relevant to the NULL comparison operator. *

      *
    • *
    • *

      * CONTAINS : Checks for a subsequence, or value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is of type String, then the operator checks * for a substring match. If the target attribute of the comparison is of * type Binary, then the operator looks for a subsequence of the target that * matches the input. If the target attribute of the comparison is a set (" * SS", "NS", or "BS"), then the * operator evaluates to true if it finds an exact match with any member of * the set. *

      *

      * CONTAINS is supported for lists: When evaluating " * a CONTAINS b", "a" can be a list; however, " * b" cannot be a set, a map, or a list. *

      *
    • *
    • *

      * NOT_CONTAINS : Checks for absence of a subsequence, or * absence of a value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is a String, then the operator checks for the * absence of a substring match. If the target attribute of the comparison * is Binary, then the operator checks for the absence of a subsequence of * the target that matches the input. If the target attribute of the * comparison is a set ("SS", "NS", or " * BS"), then the operator evaluates to true if it does * not find an exact match with any member of the set. *

      *

      * NOT_CONTAINS is supported for lists: When evaluating " * a NOT CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, or a * list. *

      *
    • *
    • *

      * BEGINS_WITH : Checks for a prefix. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String or Binary (not a Number or a set type). The target attribute * of the comparison must be of type String or Binary (not a Number or a set * type). *

      *

    • *
    • *

      * IN : Checks for matching elements within two sets. *

      *

      * AttributeValueList can contain one or more AttributeValue * elements of type String, Number, or Binary (not a set type). These * attributes are compared against an existing set type attribute of an * item. If any elements of the input set are present in the item attribute, * the expression evaluates to true. *

      *
    • *
    • *

      * BETWEEN : Greater than or equal to the first value, and less * than or equal to the second value. *

      *

      * AttributeValueList must contain two AttributeValue elements * of the same type, either String, Number, or Binary (not a set type). A * target attribute matches if the target value is greater than, or equal * to, the first element and less than, or equal to, the second element. If * an item contains an AttributeValue element of a different type * than the one provided in the request, the value does not match. For * example, {"S":"6"} does not compare to * {"N":"6"}. Also, {"N":"6"} does not compare to * {"NS":["6", "2", "1"]} *

      *
    • *
    *
  • *
*

* For usage examples of AttributeValueList and * ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB Developer * Guide. *

*

* For backward compatibility with previous DynamoDB releases, the following * parameters can be used instead of AttributeValueList and * ComparisonOperator: *

*
    *
  • *

    * Value - A value for DynamoDB to compare with an attribute. *

    *
  • *
  • *

    * Exists - A Boolean value that causes DynamoDB to evaluate the * value before attempting the conditional operation: *

    *
      *
    • *

      * If Exists is true, DynamoDB will check to see if that * attribute value already exists in the table. If it is found, then the * condition evaluates to true; otherwise the condition evaluate to false. *

      *
    • *
    • *

      * If Exists is false, DynamoDB assumes that the * attribute value does not exist in the table. If in fact the value * does not exist, then the assumption is valid and the condition evaluates * to true. If the value is found, despite the assumption that it does not * exist, the condition evaluates to false. *

      *
    • *
    *

    * Note that the default value for Exists is true. *

    *
  • *
*

* The Value and Exists parameters are incompatible with * AttributeValueList and ComparisonOperator. Note that if you * use both sets of parameters at once, DynamoDB will return a * ValidationException exception. *

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

* Use ReturnValues if you want to get the item attributes as they * appeared before they were updated with the PutItem request. For * PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB operations; * however, PutItem does not recognize any values other than * NONE or ALL_OLD. *

*
*/ private String returnValues; 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. *

*/ private String returnItemCollectionMetrics; /** * *

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

*
*

* A logical operator to apply to the conditions in the Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then the * entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to true, * then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is the * default. *

*

* The operation will succeed only if the entire map evaluates to true. *

* *

* This parameter does not support attributes of type List or Map. *

*
*/ private String conditionalOperator; /** *

* A condition that must be satisfied in order for a conditional * PutItem operation 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. *

* *

* ConditionExpression replaces the legacy ConditionalOperator * and Expected parameters. *

*
*/ 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 PutItemRequest object. Callers should use the * setter or fluent setter (with...) methods to initialize the object after * creating it. */ public PutItemRequest() { } /** * Constructs a new PutItemRequest object. Callers should use the setter or * fluent setter (with...) methods to initialize any additional object * members. * * @param tableName * The name of the table to contain the item. * @param item * A map of attribute name/value pairs, one for each attribute. Only * the primary key attributes are required; you can optionally * provide other attribute name-value pairs for the item.

*

* You must provide all of the attributes for the primary key. 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 both values for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then * the data types for those attributes must match those of the schema * in the table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue * object. */ public PutItemRequest(String tableName, java.util.Map item) { setTableName(tableName); setItem(item); } /** * Constructs a new PutItemRequest object. Callers should use the setter or * fluent setter (with...) methods to initialize any additional object * members. * * @param tableName * The name of the table to contain the item. * @param item * A map of attribute name/value pairs, one for each attribute. Only * the primary key attributes are required; you can optionally * provide other attribute name-value pairs for the item.

*

* You must provide all of the attributes for the primary key. 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 both values for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then * the data types for those attributes must match those of the schema * in the table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue * object. * @param returnValues * Use ReturnValues if you want to get the item attributes as * they appeared before they were updated with the PutItem * request. For PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB * operations; however, PutItem does not recognize any values * other than NONE or ALL_OLD. *

*/ public PutItemRequest(String tableName, java.util.Map item, String returnValues) { setTableName(tableName); setItem(item); setReturnValues(returnValues); } /** * Constructs a new PutItemRequest object. Callers should use the setter or * fluent setter (with...) methods to initialize any additional object * members. * * @param tableName * The name of the table to contain the item. * @param item * A map of attribute name/value pairs, one for each attribute. Only * the primary key attributes are required; you can optionally * provide other attribute name-value pairs for the item.

*

* You must provide all of the attributes for the primary key. 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 both values for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then * the data types for those attributes must match those of the schema * in the table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue * object. * @param returnValues * Use ReturnValues if you want to get the item attributes as * they appeared before they were updated with the PutItem * request. For PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB * operations; however, PutItem does not recognize any values * other than NONE or ALL_OLD. *

*/ public PutItemRequest(String tableName, java.util.Map item, ReturnValue returnValues) { setTableName(tableName); setItem(item); setReturnValues(returnValues.toString()); } /** *

* The name of the table to contain the item. *

* * @param tableName * The name of the table to contain the item. */ public void setTableName(String tableName) { this.tableName = tableName; } /** *

* The name of the table to contain the item. *

* * @return The name of the table to contain the item. */ public String getTableName() { return this.tableName; } /** *

* The name of the table to contain the item. *

* * @param tableName * The name of the table to contain the item. * @return Returns a reference to this object so that method calls can be * chained together. */ public PutItemRequest withTableName(String tableName) { setTableName(tableName); return this; } /** *

* A map of attribute name/value pairs, one for each attribute. Only the * primary key attributes are required; you can optionally provide other * attribute name-value pairs for the item. *

*

* You must provide all of the attributes for the primary key. 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 both values * for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then the * data types for those attributes must match those of the schema in the * table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue object. *

* * @return A map of attribute name/value pairs, one for each attribute. Only * the primary key attributes are required; you can optionally * provide other attribute name-value pairs for the item.

*

* You must provide all of the attributes for the primary key. 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 both values for both the partition key and the sort * key. *

*

* If you specify any attributes that are part of an index key, then * the data types for those attributes must match those of the * schema in the table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue * object. */ public java.util.Map getItem() { return item; } /** *

* A map of attribute name/value pairs, one for each attribute. Only the * primary key attributes are required; you can optionally provide other * attribute name-value pairs for the item. *

*

* You must provide all of the attributes for the primary key. 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 both values * for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then the * data types for those attributes must match those of the schema in the * table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue object. *

* * @param item * A map of attribute name/value pairs, one for each attribute. Only * the primary key attributes are required; you can optionally * provide other attribute name-value pairs for the item.

*

* You must provide all of the attributes for the primary key. 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 both values for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then * the data types for those attributes must match those of the schema * in the table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue * object. */ public void setItem(java.util.Map item) { this.item = item; } /** *

* A map of attribute name/value pairs, one for each attribute. Only the * primary key attributes are required; you can optionally provide other * attribute name-value pairs for the item. *

*

* You must provide all of the attributes for the primary key. 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 both values * for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then the * data types for those attributes must match those of the schema in the * table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue object. *

* * @param item * A map of attribute name/value pairs, one for each attribute. Only * the primary key attributes are required; you can optionally * provide other attribute name-value pairs for the item.

*

* You must provide all of the attributes for the primary key. 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 both values for both the partition key and the sort key. *

*

* If you specify any attributes that are part of an index key, then * the data types for those attributes must match those of the schema * in the table's attribute definition. *

*

* For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. *

*

* Each element in the Item map is an AttributeValue * object. * @return Returns a reference to this object so that method calls can be * chained together. */ public PutItemRequest withItem(java.util.Map item) { setItem(item); return this; } public PutItemRequest addItemEntry(String key, AttributeValue value) { if (null == this.item) { this.item = new java.util.HashMap(); } if (this.item.containsKey(key)) throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided."); this.item.put(key, value); return this; } /** * Removes all the entries added into Item. <p> Returns a reference to * this object so that method calls can be chained together. */ public PutItemRequest clearItemEntries() { this.item = null; return this; } /** * *

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

* *

* A map of attribute/condition pairs. Expected provides a * conditional block for the PutItem operation. *

* *

* This parameter does not support attributes of type List or Map. *

*
*

* Each element of Expected consists of an attribute name, a * comparison operator, and one or more values. DynamoDB compares the * attribute with the value(s) you supplied, using the comparison operator. * For each Expected element, the result of the evaluation is either * true or false. *

*

* If you specify more than one element in the Expected map, then by * default all of the conditions must evaluate to true. In other words, the * conditions are ANDed together. (You can use the * ConditionalOperator parameter to OR the conditions instead. If you * do this, then at least one of the conditions must evaluate to true, * rather than all of them.) *

*

* If the Expected map evaluates to true, then the conditional * operation succeeds; otherwise, it fails. *

*

* Expected contains the following: *

*
    *
  • *

    * AttributeValueList - One or more values to evaluate against the * supplied attribute. The number of values in the list depends on the * ComparisonOperator being used. *

    *

    * For type Number, value comparisons are numeric. *

    *

    * String value comparisons for greater than, equals, or less than are based * on ASCII character code values. For example, a is greater * than A, and a is greater than B. * For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters. *

    *

    * For type Binary, DynamoDB treats each byte of the binary data as unsigned * when it compares binary values. *

    *
  • *
  • *

    * ComparisonOperator - A comparator for evaluating attributes in the * AttributeValueList. When performing the comparison, DynamoDB uses * strongly consistent reads. *

    *

    * The following comparison operators are available: *

    *

    * EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN *

    *

    * The following are descriptions of each comparison operator. *

    *
      *
    • *

      * EQ : Equal. EQ is supported for all datatypes, * including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, Binary, String Set, Number Set, or Binary * Set. If an item contains an AttributeValue element of a different * type than the one provided in the request, the value does not match. For * example, {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NE : Not equal. NE is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, Binary, String Set, Number Set, or Binary Set. If an * item contains an AttributeValue of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not equal {"NS":["6", "2", "1"]} * . *

      *

    • *
    • *

      * LE : Less than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LT : Less than. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, or Binary (not a set type). If an item contains an * AttributeValue element of a different type than the one provided * in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GE : Greater than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GT : Greater than. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NOT_NULL : The attribute exists. NOT_NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the existence of an attribute, not its data type. * If the data type of attribute "a" is null, and you evaluate * it using NOT_NULL, the result is a Boolean true. This * result is because the attribute "a" exists; its data type is * not relevant to the NOT_NULL comparison operator. *

      *
    • *
    • *

      * NULL : The attribute does not exist. NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the nonexistence of an attribute, not its data * type. If the data type of attribute "a" is null, and you * evaluate it using NULL, the result is a Boolean * false. This is because the attribute "a" exists; its * data type is not relevant to the NULL comparison operator. *

      *
    • *
    • *

      * CONTAINS : Checks for a subsequence, or value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is of type String, then the operator checks * for a substring match. If the target attribute of the comparison is of * type Binary, then the operator looks for a subsequence of the target that * matches the input. If the target attribute of the comparison is a set (" * SS", "NS", or "BS"), then the * operator evaluates to true if it finds an exact match with any member of * the set. *

      *

      * CONTAINS is supported for lists: When evaluating " * a CONTAINS b", "a" can be a list; however, " * b" cannot be a set, a map, or a list. *

      *
    • *
    • *

      * NOT_CONTAINS : Checks for absence of a subsequence, or * absence of a value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is a String, then the operator checks for the * absence of a substring match. If the target attribute of the comparison * is Binary, then the operator checks for the absence of a subsequence of * the target that matches the input. If the target attribute of the * comparison is a set ("SS", "NS", or " * BS"), then the operator evaluates to true if it does * not find an exact match with any member of the set. *

      *

      * NOT_CONTAINS is supported for lists: When evaluating " * a NOT CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, or a * list. *

      *
    • *
    • *

      * BEGINS_WITH : Checks for a prefix. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String or Binary (not a Number or a set type). The target attribute * of the comparison must be of type String or Binary (not a Number or a set * type). *

      *

    • *
    • *

      * IN : Checks for matching elements within two sets. *

      *

      * AttributeValueList can contain one or more AttributeValue * elements of type String, Number, or Binary (not a set type). These * attributes are compared against an existing set type attribute of an * item. If any elements of the input set are present in the item attribute, * the expression evaluates to true. *

      *
    • *
    • *

      * BETWEEN : Greater than or equal to the first value, and less * than or equal to the second value. *

      *

      * AttributeValueList must contain two AttributeValue elements * of the same type, either String, Number, or Binary (not a set type). A * target attribute matches if the target value is greater than, or equal * to, the first element and less than, or equal to, the second element. If * an item contains an AttributeValue element of a different type * than the one provided in the request, the value does not match. For * example, {"S":"6"} does not compare to * {"N":"6"}. Also, {"N":"6"} does not compare to * {"NS":["6", "2", "1"]} *

      *
    • *
    *
  • *
*

* For usage examples of AttributeValueList and * ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB Developer * Guide. *

*

* For backward compatibility with previous DynamoDB releases, the following * parameters can be used instead of AttributeValueList and * ComparisonOperator: *

*
    *
  • *

    * Value - A value for DynamoDB to compare with an attribute. *

    *
  • *
  • *

    * Exists - A Boolean value that causes DynamoDB to evaluate the * value before attempting the conditional operation: *

    *
      *
    • *

      * If Exists is true, DynamoDB will check to see if that * attribute value already exists in the table. If it is found, then the * condition evaluates to true; otherwise the condition evaluate to false. *

      *
    • *
    • *

      * If Exists is false, DynamoDB assumes that the * attribute value does not exist in the table. If in fact the value * does not exist, then the assumption is valid and the condition evaluates * to true. If the value is found, despite the assumption that it does not * exist, the condition evaluates to false. *

      *
    • *
    *

    * Note that the default value for Exists is true. *

    *
  • *
*

* The Value and Exists parameters are incompatible with * AttributeValueList and ComparisonOperator. Note that if you * use both sets of parameters at once, DynamoDB will return a * ValidationException exception. *

* * @return

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do * not combine legacy parameters and expression parameters in a * single API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A map of attribute/condition pairs. Expected provides a * conditional block for the PutItem operation. *

* *

* This parameter does not support attributes of type List or Map. *

*
*

* Each element of Expected consists of an attribute name, a * comparison operator, and one or more values. DynamoDB compares * the attribute with the value(s) you supplied, using the * comparison operator. For each Expected element, the result * of the evaluation is either true or false. *

*

* If you specify more than one element in the Expected map, * then by default all of the conditions must evaluate to true. In * other words, the conditions are ANDed together. (You can use the * ConditionalOperator parameter to OR the conditions * instead. If you do this, then at least one of the conditions must * evaluate to true, rather than all of them.) *

*

* If the Expected map evaluates to true, then the * conditional operation succeeds; otherwise, it fails. *

*

* Expected contains the following: *

*
    *
  • *

    * AttributeValueList - One or more values to evaluate * against the supplied attribute. The number of values in the list * depends on the ComparisonOperator being used. *

    *

    * For type Number, value comparisons are numeric. *

    *

    * String value comparisons for greater than, equals, or less than * are based on ASCII character code values. For example, * a is greater than A, and a * is greater than B. For a list of code values, see http * ://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters. *

    *

    * For type Binary, DynamoDB treats each byte of the binary data as * unsigned when it compares binary values. *

    *
  • *
  • *

    * ComparisonOperator - A comparator for evaluating * attributes in the AttributeValueList. When performing the * comparison, DynamoDB uses strongly consistent reads. *

    *

    * The following comparison operators are available: *

    *

    * EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN *

    *

    * The following are descriptions of each comparison operator. *

    *
      *
    • *

      * EQ : Equal. EQ is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, Binary, * String Set, Number Set, or Binary Set. If an item contains an * AttributeValue element of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NE : Not equal. NE is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String, Number, Binary, String Set, * Number Set, or Binary Set. If an item contains an * AttributeValue of a different type than the one provided * in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LE : Less than or equal. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} * does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LT : Less than. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String, Number, or Binary (not a * set type). If an item contains an AttributeValue element * of a different type than the one provided in the request, the * value does not match. For example, {"S":"6"} does * not equal {"N":"6"}. Also, {"N":"6"} * does not compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GE : Greater than or equal. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} * does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GT : Greater than. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} * does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NOT_NULL : The attribute exists. * NOT_NULL is supported for all datatypes, including * lists and maps. *

      * *

      * This operator tests for the existence of an attribute, not its * data type. If the data type of attribute "a" is * null, and you evaluate it using NOT_NULL, the result * is a Boolean true. This result is because the attribute " * a" exists; its data type is not relevant to the * NOT_NULL comparison operator. *

      *
    • *
    • *

      * NULL : The attribute does not exist. * NULL is supported for all datatypes, including lists * and maps. *

      * *

      * This operator tests for the nonexistence of an attribute, not its * data type. If the data type of attribute "a" is * null, and you evaluate it using NULL, the result is * a Boolean false. This is because the attribute " * a" exists; its data type is not relevant to the * NULL comparison operator. *

      *
    • *
    • *

      * CONTAINS : Checks for a subsequence, or value in a * set. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If the target attribute of the comparison is of * type String, then the operator checks for a substring match. If * the target attribute of the comparison is of type Binary, then * the operator looks for a subsequence of the target that matches * the input. If the target attribute of the comparison is a set (" * SS", "NS", or "BS"), then * the operator evaluates to true if it finds an exact match with * any member of the set. *

      *

      * CONTAINS is supported for lists: When evaluating " * a CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a * map, or a list. *

      *
    • *
    • *

      * NOT_CONTAINS : Checks for absence of a subsequence, * or absence of a value in a set. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If the target attribute of the comparison is a * String, then the operator checks for the absence of a substring * match. If the target attribute of the comparison is Binary, then * the operator checks for the absence of a subsequence of the * target that matches the input. If the target attribute of the * comparison is a set ("SS", "NS", or " * BS"), then the operator evaluates to true if it * does not find an exact match with any member of the set. *

      *

      * NOT_CONTAINS is supported for lists: When evaluating " * a NOT CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a * map, or a list. *

      *
    • *
    • *

      * BEGINS_WITH : Checks for a prefix. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String or Binary (not a Number or a * set type). The target attribute of the comparison must be of type * String or Binary (not a Number or a set type). *

      *

    • *
    • *

      * IN : Checks for matching elements within two sets. *

      *

      * AttributeValueList can contain one or more * AttributeValue elements of type String, Number, or Binary * (not a set type). These attributes are compared against an * existing set type attribute of an item. If any elements of the * input set are present in the item attribute, the expression * evaluates to true. *

      *
    • *
    • *

      * BETWEEN : Greater than or equal to the first value, * and less than or equal to the second value. *

      *

      * AttributeValueList must contain two AttributeValue * elements of the same type, either String, Number, or Binary (not * a set type). A target attribute matches if the target value is * greater than, or equal to, the first element and less than, or * equal to, the second element. If an item contains an * AttributeValue element of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not compare to {"N":"6"} * . Also, {"N":"6"} does not compare to * {"NS":["6", "2", "1"]} *

      *
    • *
    *
  • *
*

* For usage examples of AttributeValueList and * ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB * Developer Guide. *

*

* For backward compatibility with previous DynamoDB releases, the * following parameters can be used instead of * AttributeValueList and ComparisonOperator: *

*
    *
  • *

    * Value - A value for DynamoDB to compare with an attribute. *

    *
  • *
  • *

    * Exists - A Boolean value that causes DynamoDB to evaluate * the value before attempting the conditional operation: *

    *
      *
    • *

      * If Exists is true, DynamoDB will check to see * if that attribute value already exists in the table. If it is * found, then the condition evaluates to true; otherwise the * condition evaluate to false. *

      *
    • *
    • *

      * If Exists is false, DynamoDB assumes that the * attribute value does not exist in the table. If in fact * the value does not exist, then the assumption is valid and the * condition evaluates to true. If the value is found, despite the * assumption that it does not exist, the condition evaluates to * false. *

      *
    • *
    *

    * Note that the default value for Exists is * true. *

    *
  • *
*

* The Value and Exists parameters are incompatible * with AttributeValueList and ComparisonOperator. * Note that if you use both sets of parameters at once, DynamoDB * will return a ValidationException exception. */ public java.util.Map getExpected() { return expected; } /** * *

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

* *

* A map of attribute/condition pairs. Expected provides a * conditional block for the PutItem operation. *

* *

* This parameter does not support attributes of type List or Map. *

*
*

* Each element of Expected consists of an attribute name, a * comparison operator, and one or more values. DynamoDB compares the * attribute with the value(s) you supplied, using the comparison operator. * For each Expected element, the result of the evaluation is either * true or false. *

*

* If you specify more than one element in the Expected map, then by * default all of the conditions must evaluate to true. In other words, the * conditions are ANDed together. (You can use the * ConditionalOperator parameter to OR the conditions instead. If you * do this, then at least one of the conditions must evaluate to true, * rather than all of them.) *

*

* If the Expected map evaluates to true, then the conditional * operation succeeds; otherwise, it fails. *

*

* Expected contains the following: *

*
    *
  • *

    * AttributeValueList - One or more values to evaluate against the * supplied attribute. The number of values in the list depends on the * ComparisonOperator being used. *

    *

    * For type Number, value comparisons are numeric. *

    *

    * String value comparisons for greater than, equals, or less than are based * on ASCII character code values. For example, a is greater * than A, and a is greater than B. * For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters. *

    *

    * For type Binary, DynamoDB treats each byte of the binary data as unsigned * when it compares binary values. *

    *
  • *
  • *

    * ComparisonOperator - A comparator for evaluating attributes in the * AttributeValueList. When performing the comparison, DynamoDB uses * strongly consistent reads. *

    *

    * The following comparison operators are available: *

    *

    * EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN *

    *

    * The following are descriptions of each comparison operator. *

    *
      *
    • *

      * EQ : Equal. EQ is supported for all datatypes, * including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, Binary, String Set, Number Set, or Binary * Set. If an item contains an AttributeValue element of a different * type than the one provided in the request, the value does not match. For * example, {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NE : Not equal. NE is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, Binary, String Set, Number Set, or Binary Set. If an * item contains an AttributeValue of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not equal {"NS":["6", "2", "1"]} * . *

      *

    • *
    • *

      * LE : Less than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LT : Less than. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, or Binary (not a set type). If an item contains an * AttributeValue element of a different type than the one provided * in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GE : Greater than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GT : Greater than. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NOT_NULL : The attribute exists. NOT_NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the existence of an attribute, not its data type. * If the data type of attribute "a" is null, and you evaluate * it using NOT_NULL, the result is a Boolean true. This * result is because the attribute "a" exists; its data type is * not relevant to the NOT_NULL comparison operator. *

      *
    • *
    • *

      * NULL : The attribute does not exist. NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the nonexistence of an attribute, not its data * type. If the data type of attribute "a" is null, and you * evaluate it using NULL, the result is a Boolean * false. This is because the attribute "a" exists; its * data type is not relevant to the NULL comparison operator. *

      *
    • *
    • *

      * CONTAINS : Checks for a subsequence, or value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is of type String, then the operator checks * for a substring match. If the target attribute of the comparison is of * type Binary, then the operator looks for a subsequence of the target that * matches the input. If the target attribute of the comparison is a set (" * SS", "NS", or "BS"), then the * operator evaluates to true if it finds an exact match with any member of * the set. *

      *

      * CONTAINS is supported for lists: When evaluating " * a CONTAINS b", "a" can be a list; however, " * b" cannot be a set, a map, or a list. *

      *
    • *
    • *

      * NOT_CONTAINS : Checks for absence of a subsequence, or * absence of a value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is a String, then the operator checks for the * absence of a substring match. If the target attribute of the comparison * is Binary, then the operator checks for the absence of a subsequence of * the target that matches the input. If the target attribute of the * comparison is a set ("SS", "NS", or " * BS"), then the operator evaluates to true if it does * not find an exact match with any member of the set. *

      *

      * NOT_CONTAINS is supported for lists: When evaluating " * a NOT CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, or a * list. *

      *
    • *
    • *

      * BEGINS_WITH : Checks for a prefix. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String or Binary (not a Number or a set type). The target attribute * of the comparison must be of type String or Binary (not a Number or a set * type). *

      *

    • *
    • *

      * IN : Checks for matching elements within two sets. *

      *

      * AttributeValueList can contain one or more AttributeValue * elements of type String, Number, or Binary (not a set type). These * attributes are compared against an existing set type attribute of an * item. If any elements of the input set are present in the item attribute, * the expression evaluates to true. *

      *
    • *
    • *

      * BETWEEN : Greater than or equal to the first value, and less * than or equal to the second value. *

      *

      * AttributeValueList must contain two AttributeValue elements * of the same type, either String, Number, or Binary (not a set type). A * target attribute matches if the target value is greater than, or equal * to, the first element and less than, or equal to, the second element. If * an item contains an AttributeValue element of a different type * than the one provided in the request, the value does not match. For * example, {"S":"6"} does not compare to * {"N":"6"}. Also, {"N":"6"} does not compare to * {"NS":["6", "2", "1"]} *

      *
    • *
    *
  • *
*

* For usage examples of AttributeValueList and * ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB Developer * Guide. *

*

* For backward compatibility with previous DynamoDB releases, the following * parameters can be used instead of AttributeValueList and * ComparisonOperator: *

*
    *
  • *

    * Value - A value for DynamoDB to compare with an attribute. *

    *
  • *
  • *

    * Exists - A Boolean value that causes DynamoDB to evaluate the * value before attempting the conditional operation: *

    *
      *
    • *

      * If Exists is true, DynamoDB will check to see if that * attribute value already exists in the table. If it is found, then the * condition evaluates to true; otherwise the condition evaluate to false. *

      *
    • *
    • *

      * If Exists is false, DynamoDB assumes that the * attribute value does not exist in the table. If in fact the value * does not exist, then the assumption is valid and the condition evaluates * to true. If the value is found, despite the assumption that it does not * exist, the condition evaluates to false. *

      *
    • *
    *

    * Note that the default value for Exists is true. *

    *
  • *
*

* The Value and Exists parameters are incompatible with * AttributeValueList and ComparisonOperator. Note that if you * use both sets of parameters at once, DynamoDB will return a * ValidationException exception. *

* * @param expected *

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do not * combine legacy parameters and expression parameters in a single * API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A map of attribute/condition pairs. Expected provides a * conditional block for the PutItem operation. *

* *

* This parameter does not support attributes of type List or Map. *

*
*

* Each element of Expected consists of an attribute name, a * comparison operator, and one or more values. DynamoDB compares the * attribute with the value(s) you supplied, using the comparison * operator. For each Expected element, the result of the * evaluation is either true or false. *

*

* If you specify more than one element in the Expected map, * then by default all of the conditions must evaluate to true. In * other words, the conditions are ANDed together. (You can use the * ConditionalOperator parameter to OR the conditions instead. * If you do this, then at least one of the conditions must evaluate * to true, rather than all of them.) *

*

* If the Expected map evaluates to true, then the conditional * operation succeeds; otherwise, it fails. *

*

* Expected contains the following: *

*
    *
  • *

    * AttributeValueList - One or more values to evaluate against * the supplied attribute. The number of values in the list depends * on the ComparisonOperator being used. *

    *

    * For type Number, value comparisons are numeric. *

    *

    * String value comparisons for greater than, equals, or less than * are based on ASCII character code values. For example, * a is greater than A, and a * is greater than B. For a list of code values, see http * ://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters. *

    *

    * For type Binary, DynamoDB treats each byte of the binary data as * unsigned when it compares binary values. *

    *
  • *
  • *

    * ComparisonOperator - A comparator for evaluating attributes * in the AttributeValueList. When performing the comparison, * DynamoDB uses strongly consistent reads. *

    *

    * The following comparison operators are available: *

    *

    * EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN *

    *

    * The following are descriptions of each comparison operator. *

    *
      *
    • *

      * EQ : Equal. EQ is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, Binary, * String Set, Number Set, or Binary Set. If an item contains an * AttributeValue element of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NE : Not equal. NE is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String, Number, Binary, String Set, * Number Set, or Binary Set. If an item contains an * AttributeValue of a different type than the one provided in * the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LE : Less than or equal. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} does * not equal {"N":"6"}. Also, {"N":"6"} * does not compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LT : Less than. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String, Number, or Binary (not a set * type). If an item contains an AttributeValue element of a * different type than the one provided in the request, the value * does not match. For example, {"S":"6"} does not equal * {"N":"6"}. Also, {"N":"6"} does not * compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GE : Greater than or equal. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} does * not equal {"N":"6"}. Also, {"N":"6"} * does not compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GT : Greater than. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} does * not equal {"N":"6"}. Also, {"N":"6"} * does not compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NOT_NULL : The attribute exists. * NOT_NULL is supported for all datatypes, including * lists and maps. *

      * *

      * This operator tests for the existence of an attribute, not its * data type. If the data type of attribute "a" is null, * and you evaluate it using NOT_NULL, the result is a * Boolean true. This result is because the attribute " * a" exists; its data type is not relevant to the * NOT_NULL comparison operator. *

      *
    • *
    • *

      * NULL : The attribute does not exist. * NULL is supported for all datatypes, including lists * and maps. *

      * *

      * This operator tests for the nonexistence of an attribute, not its * data type. If the data type of attribute "a" is null, * and you evaluate it using NULL, the result is a * Boolean false. This is because the attribute " * a" exists; its data type is not relevant to the * NULL comparison operator. *

      *
    • *
    • *

      * CONTAINS : Checks for a subsequence, or value in a * set. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If the target attribute of the comparison is of * type String, then the operator checks for a substring match. If * the target attribute of the comparison is of type Binary, then the * operator looks for a subsequence of the target that matches the * input. If the target attribute of the comparison is a set (" * SS", "NS", or "BS"), then * the operator evaluates to true if it finds an exact match with any * member of the set. *

      *

      * CONTAINS is supported for lists: When evaluating " * a CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, * or a list. *

      *
    • *
    • *

      * NOT_CONTAINS : Checks for absence of a subsequence, * or absence of a value in a set. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If the target attribute of the comparison is a * String, then the operator checks for the absence of a substring * match. If the target attribute of the comparison is Binary, then * the operator checks for the absence of a subsequence of the target * that matches the input. If the target attribute of the comparison * is a set ("SS", "NS", or " * BS"), then the operator evaluates to true if it * does not find an exact match with any member of the set. *

      *

      * NOT_CONTAINS is supported for lists: When evaluating " * a NOT CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, * or a list. *

      *
    • *
    • *

      * BEGINS_WITH : Checks for a prefix. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String or Binary (not a Number or a * set type). The target attribute of the comparison must be of type * String or Binary (not a Number or a set type). *

      *

    • *
    • *

      * IN : Checks for matching elements within two sets. *

      *

      * AttributeValueList can contain one or more * AttributeValue elements of type String, Number, or Binary * (not a set type). These attributes are compared against an * existing set type attribute of an item. If any elements of the * input set are present in the item attribute, the expression * evaluates to true. *

      *
    • *
    • *

      * BETWEEN : Greater than or equal to the first value, * and less than or equal to the second value. *

      *

      * AttributeValueList must contain two AttributeValue * elements of the same type, either String, Number, or Binary (not a * set type). A target attribute matches if the target value is * greater than, or equal to, the first element and less than, or * equal to, the second element. If an item contains an * AttributeValue element of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not compare to {"N":"6"}. * Also, {"N":"6"} does not compare to * {"NS":["6", "2", "1"]} *

      *
    • *
    *
  • *
*

* For usage examples of AttributeValueList and * ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB * Developer Guide. *

*

* For backward compatibility with previous DynamoDB releases, the * following parameters can be used instead of * AttributeValueList and ComparisonOperator: *

*
    *
  • *

    * Value - A value for DynamoDB to compare with an attribute. *

    *
  • *
  • *

    * Exists - A Boolean value that causes DynamoDB to evaluate * the value before attempting the conditional operation: *

    *
      *
    • *

      * If Exists is true, DynamoDB will check to see * if that attribute value already exists in the table. If it is * found, then the condition evaluates to true; otherwise the * condition evaluate to false. *

      *
    • *
    • *

      * If Exists is false, DynamoDB assumes that the * attribute value does not exist in the table. If in fact the * value does not exist, then the assumption is valid and the * condition evaluates to true. If the value is found, despite the * assumption that it does not exist, the condition evaluates to * false. *

      *
    • *
    *

    * Note that the default value for Exists is true * . *

    *
  • *
*

* The Value and Exists parameters are incompatible * with AttributeValueList and ComparisonOperator. Note * that if you use both sets of parameters at once, DynamoDB will * return a ValidationException exception. */ public void setExpected( java.util.Map expected) { this.expected = expected; } /** * *

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

* *

* A map of attribute/condition pairs. Expected provides a * conditional block for the PutItem operation. *

* *

* This parameter does not support attributes of type List or Map. *

*
*

* Each element of Expected consists of an attribute name, a * comparison operator, and one or more values. DynamoDB compares the * attribute with the value(s) you supplied, using the comparison operator. * For each Expected element, the result of the evaluation is either * true or false. *

*

* If you specify more than one element in the Expected map, then by * default all of the conditions must evaluate to true. In other words, the * conditions are ANDed together. (You can use the * ConditionalOperator parameter to OR the conditions instead. If you * do this, then at least one of the conditions must evaluate to true, * rather than all of them.) *

*

* If the Expected map evaluates to true, then the conditional * operation succeeds; otherwise, it fails. *

*

* Expected contains the following: *

*
    *
  • *

    * AttributeValueList - One or more values to evaluate against the * supplied attribute. The number of values in the list depends on the * ComparisonOperator being used. *

    *

    * For type Number, value comparisons are numeric. *

    *

    * String value comparisons for greater than, equals, or less than are based * on ASCII character code values. For example, a is greater * than A, and a is greater than B. * For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters. *

    *

    * For type Binary, DynamoDB treats each byte of the binary data as unsigned * when it compares binary values. *

    *
  • *
  • *

    * ComparisonOperator - A comparator for evaluating attributes in the * AttributeValueList. When performing the comparison, DynamoDB uses * strongly consistent reads. *

    *

    * The following comparison operators are available: *

    *

    * EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN *

    *

    * The following are descriptions of each comparison operator. *

    *
      *
    • *

      * EQ : Equal. EQ is supported for all datatypes, * including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, Binary, String Set, Number Set, or Binary * Set. If an item contains an AttributeValue element of a different * type than the one provided in the request, the value does not match. For * example, {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NE : Not equal. NE is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, Binary, String Set, Number Set, or Binary Set. If an * item contains an AttributeValue of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not equal {"NS":["6", "2", "1"]} * . *

      *

    • *
    • *

      * LE : Less than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LT : Less than. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String, Number, or Binary (not a set type). If an item contains an * AttributeValue element of a different type than the one provided * in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GE : Greater than or equal. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GT : Greater than. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If an item * contains an AttributeValue element of a different type than the * one provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. Also, * {"N":"6"} does not compare to * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NOT_NULL : The attribute exists. NOT_NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the existence of an attribute, not its data type. * If the data type of attribute "a" is null, and you evaluate * it using NOT_NULL, the result is a Boolean true. This * result is because the attribute "a" exists; its data type is * not relevant to the NOT_NULL comparison operator. *

      *
    • *
    • *

      * NULL : The attribute does not exist. NULL is * supported for all datatypes, including lists and maps. *

      * *

      * This operator tests for the nonexistence of an attribute, not its data * type. If the data type of attribute "a" is null, and you * evaluate it using NULL, the result is a Boolean * false. This is because the attribute "a" exists; its * data type is not relevant to the NULL comparison operator. *

      *
    • *
    • *

      * CONTAINS : Checks for a subsequence, or value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is of type String, then the operator checks * for a substring match. If the target attribute of the comparison is of * type Binary, then the operator looks for a subsequence of the target that * matches the input. If the target attribute of the comparison is a set (" * SS", "NS", or "BS"), then the * operator evaluates to true if it finds an exact match with any member of * the set. *

      *

      * CONTAINS is supported for lists: When evaluating " * a CONTAINS b", "a" can be a list; however, " * b" cannot be a set, a map, or a list. *

      *
    • *
    • *

      * NOT_CONTAINS : Checks for absence of a subsequence, or * absence of a value in a set. *

      *

      * AttributeValueList can contain only one AttributeValue * element of type String, Number, or Binary (not a set type). If the target * attribute of the comparison is a String, then the operator checks for the * absence of a substring match. If the target attribute of the comparison * is Binary, then the operator checks for the absence of a subsequence of * the target that matches the input. If the target attribute of the * comparison is a set ("SS", "NS", or " * BS"), then the operator evaluates to true if it does * not find an exact match with any member of the set. *

      *

      * NOT_CONTAINS is supported for lists: When evaluating " * a NOT CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, or a * list. *

      *
    • *
    • *

      * BEGINS_WITH : Checks for a prefix. *

      *

      * AttributeValueList can contain only one AttributeValue of * type String or Binary (not a Number or a set type). The target attribute * of the comparison must be of type String or Binary (not a Number or a set * type). *

      *

    • *
    • *

      * IN : Checks for matching elements within two sets. *

      *

      * AttributeValueList can contain one or more AttributeValue * elements of type String, Number, or Binary (not a set type). These * attributes are compared against an existing set type attribute of an * item. If any elements of the input set are present in the item attribute, * the expression evaluates to true. *

      *
    • *
    • *

      * BETWEEN : Greater than or equal to the first value, and less * than or equal to the second value. *

      *

      * AttributeValueList must contain two AttributeValue elements * of the same type, either String, Number, or Binary (not a set type). A * target attribute matches if the target value is greater than, or equal * to, the first element and less than, or equal to, the second element. If * an item contains an AttributeValue element of a different type * than the one provided in the request, the value does not match. For * example, {"S":"6"} does not compare to * {"N":"6"}. Also, {"N":"6"} does not compare to * {"NS":["6", "2", "1"]} *

      *
    • *
    *
  • *
*

* For usage examples of AttributeValueList and * ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB Developer * Guide. *

*

* For backward compatibility with previous DynamoDB releases, the following * parameters can be used instead of AttributeValueList and * ComparisonOperator: *

*
    *
  • *

    * Value - A value for DynamoDB to compare with an attribute. *

    *
  • *
  • *

    * Exists - A Boolean value that causes DynamoDB to evaluate the * value before attempting the conditional operation: *

    *
      *
    • *

      * If Exists is true, DynamoDB will check to see if that * attribute value already exists in the table. If it is found, then the * condition evaluates to true; otherwise the condition evaluate to false. *

      *
    • *
    • *

      * If Exists is false, DynamoDB assumes that the * attribute value does not exist in the table. If in fact the value * does not exist, then the assumption is valid and the condition evaluates * to true. If the value is found, despite the assumption that it does not * exist, the condition evaluates to false. *

      *
    • *
    *

    * Note that the default value for Exists is true. *

    *
  • *
*

* The Value and Exists parameters are incompatible with * AttributeValueList and ComparisonOperator. Note that if you * use both sets of parameters at once, DynamoDB will return a * ValidationException exception. *

* * @param expected *

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do not * combine legacy parameters and expression parameters in a single * API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A map of attribute/condition pairs. Expected provides a * conditional block for the PutItem operation. *

* *

* This parameter does not support attributes of type List or Map. *

*
*

* Each element of Expected consists of an attribute name, a * comparison operator, and one or more values. DynamoDB compares the * attribute with the value(s) you supplied, using the comparison * operator. For each Expected element, the result of the * evaluation is either true or false. *

*

* If you specify more than one element in the Expected map, * then by default all of the conditions must evaluate to true. In * other words, the conditions are ANDed together. (You can use the * ConditionalOperator parameter to OR the conditions instead. * If you do this, then at least one of the conditions must evaluate * to true, rather than all of them.) *

*

* If the Expected map evaluates to true, then the conditional * operation succeeds; otherwise, it fails. *

*

* Expected contains the following: *

*
    *
  • *

    * AttributeValueList - One or more values to evaluate against * the supplied attribute. The number of values in the list depends * on the ComparisonOperator being used. *

    *

    * For type Number, value comparisons are numeric. *

    *

    * String value comparisons for greater than, equals, or less than * are based on ASCII character code values. For example, * a is greater than A, and a * is greater than B. For a list of code values, see http * ://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters. *

    *

    * For type Binary, DynamoDB treats each byte of the binary data as * unsigned when it compares binary values. *

    *
  • *
  • *

    * ComparisonOperator - A comparator for evaluating attributes * in the AttributeValueList. When performing the comparison, * DynamoDB uses strongly consistent reads. *

    *

    * The following comparison operators are available: *

    *

    * EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN *

    *

    * The following are descriptions of each comparison operator. *

    *
      *
    • *

      * EQ : Equal. EQ is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, Binary, * String Set, Number Set, or Binary Set. If an item contains an * AttributeValue element of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NE : Not equal. NE is supported for all * datatypes, including lists and maps. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String, Number, Binary, String Set, * Number Set, or Binary Set. If an item contains an * AttributeValue of a different type than the one provided in * the request, the value does not match. For example, * {"S":"6"} does not equal {"N":"6"}. * Also, {"N":"6"} does not equal * {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LE : Less than or equal. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} does * not equal {"N":"6"}. Also, {"N":"6"} * does not compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * LT : Less than. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String, Number, or Binary (not a set * type). If an item contains an AttributeValue element of a * different type than the one provided in the request, the value * does not match. For example, {"S":"6"} does not equal * {"N":"6"}. Also, {"N":"6"} does not * compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GE : Greater than or equal. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} does * not equal {"N":"6"}. Also, {"N":"6"} * does not compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * GT : Greater than. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If an item contains an AttributeValue * element of a different type than the one provided in the request, * the value does not match. For example, {"S":"6"} does * not equal {"N":"6"}. Also, {"N":"6"} * does not compare to {"NS":["6", "2", "1"]}. *

      *

    • *
    • *

      * NOT_NULL : The attribute exists. * NOT_NULL is supported for all datatypes, including * lists and maps. *

      * *

      * This operator tests for the existence of an attribute, not its * data type. If the data type of attribute "a" is null, * and you evaluate it using NOT_NULL, the result is a * Boolean true. This result is because the attribute " * a" exists; its data type is not relevant to the * NOT_NULL comparison operator. *

      *
    • *
    • *

      * NULL : The attribute does not exist. * NULL is supported for all datatypes, including lists * and maps. *

      * *

      * This operator tests for the nonexistence of an attribute, not its * data type. If the data type of attribute "a" is null, * and you evaluate it using NULL, the result is a * Boolean false. This is because the attribute " * a" exists; its data type is not relevant to the * NULL comparison operator. *

      *
    • *
    • *

      * CONTAINS : Checks for a subsequence, or value in a * set. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If the target attribute of the comparison is of * type String, then the operator checks for a substring match. If * the target attribute of the comparison is of type Binary, then the * operator looks for a subsequence of the target that matches the * input. If the target attribute of the comparison is a set (" * SS", "NS", or "BS"), then * the operator evaluates to true if it finds an exact match with any * member of the set. *

      *

      * CONTAINS is supported for lists: When evaluating " * a CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, * or a list. *

      *
    • *
    • *

      * NOT_CONTAINS : Checks for absence of a subsequence, * or absence of a value in a set. *

      *

      * AttributeValueList can contain only one * AttributeValue element of type String, Number, or Binary * (not a set type). If the target attribute of the comparison is a * String, then the operator checks for the absence of a substring * match. If the target attribute of the comparison is Binary, then * the operator checks for the absence of a subsequence of the target * that matches the input. If the target attribute of the comparison * is a set ("SS", "NS", or " * BS"), then the operator evaluates to true if it * does not find an exact match with any member of the set. *

      *

      * NOT_CONTAINS is supported for lists: When evaluating " * a NOT CONTAINS b", "a * " can be a list; however, "b" cannot be a set, a map, * or a list. *

      *
    • *
    • *

      * BEGINS_WITH : Checks for a prefix. *

      *

      * AttributeValueList can contain only one * AttributeValue of type String or Binary (not a Number or a * set type). The target attribute of the comparison must be of type * String or Binary (not a Number or a set type). *

      *

    • *
    • *

      * IN : Checks for matching elements within two sets. *

      *

      * AttributeValueList can contain one or more * AttributeValue elements of type String, Number, or Binary * (not a set type). These attributes are compared against an * existing set type attribute of an item. If any elements of the * input set are present in the item attribute, the expression * evaluates to true. *

      *
    • *
    • *

      * BETWEEN : Greater than or equal to the first value, * and less than or equal to the second value. *

      *

      * AttributeValueList must contain two AttributeValue * elements of the same type, either String, Number, or Binary (not a * set type). A target attribute matches if the target value is * greater than, or equal to, the first element and less than, or * equal to, the second element. If an item contains an * AttributeValue element of a different type than the one * provided in the request, the value does not match. For example, * {"S":"6"} does not compare to {"N":"6"}. * Also, {"N":"6"} does not compare to * {"NS":["6", "2", "1"]} *

      *
    • *
    *
  • *
*

* For usage examples of AttributeValueList and * ComparisonOperator, see Legacy Conditional Parameters in the Amazon DynamoDB * Developer Guide. *

*

* For backward compatibility with previous DynamoDB releases, the * following parameters can be used instead of * AttributeValueList and ComparisonOperator: *

*
    *
  • *

    * Value - A value for DynamoDB to compare with an attribute. *

    *
  • *
  • *

    * Exists - A Boolean value that causes DynamoDB to evaluate * the value before attempting the conditional operation: *

    *
      *
    • *

      * If Exists is true, DynamoDB will check to see * if that attribute value already exists in the table. If it is * found, then the condition evaluates to true; otherwise the * condition evaluate to false. *

      *
    • *
    • *

      * If Exists is false, DynamoDB assumes that the * attribute value does not exist in the table. If in fact the * value does not exist, then the assumption is valid and the * condition evaluates to true. If the value is found, despite the * assumption that it does not exist, the condition evaluates to * false. *

      *
    • *
    *

    * Note that the default value for Exists is true * . *

    *
  • *
*

* The Value and Exists parameters are incompatible * with AttributeValueList and ComparisonOperator. Note * that if you use both sets of parameters at once, DynamoDB will * return a ValidationException exception. * @return Returns a reference to this object so that method calls can be * chained together. */ public PutItemRequest withExpected( java.util.Map expected) { setExpected(expected); return this; } public PutItemRequest 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. <p> Returns a reference * to this object so that method calls can be chained together. */ public PutItemRequest clearExpectedEntries() { this.expected = null; return this; } /** *

* Use ReturnValues if you want to get the item attributes as they * appeared before they were updated with the PutItem request. For * PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB operations; * however, PutItem does not recognize any values other than * NONE or ALL_OLD. *

*
* * @param returnValues * Use ReturnValues if you want to get the item attributes as * they appeared before they were updated with the PutItem * request. For PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB * operations; however, PutItem does not recognize any values * other than NONE or ALL_OLD. *

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

* Use ReturnValues if you want to get the item attributes as they * appeared before they were updated with the PutItem request. For * PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB operations; * however, PutItem does not recognize any values other than * NONE or ALL_OLD. *

*
* * @return Use ReturnValues if you want to get the item attributes as * they appeared before they were updated with the PutItem * request. For PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB * operations; however, PutItem does not recognize any values * other than NONE or ALL_OLD. *

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

* Use ReturnValues if you want to get the item attributes as they * appeared before they were updated with the PutItem request. For * PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB operations; * however, PutItem does not recognize any values other than * NONE or ALL_OLD. *

*
* * @param returnValues * Use ReturnValues if you want to get the item attributes as * they appeared before they were updated with the PutItem * request. For PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB * operations; however, PutItem does not recognize any values * other than NONE or ALL_OLD. *

* @return Returns a reference to this object so that method calls can be * chained together. * @see ReturnValue */ public PutItemRequest withReturnValues(String returnValues) { setReturnValues(returnValues); return this; } /** *

* Use ReturnValues if you want to get the item attributes as they * appeared before they were updated with the PutItem request. For * PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB operations; * however, PutItem does not recognize any values other than * NONE or ALL_OLD. *

*
* * @param returnValues * Use ReturnValues if you want to get the item attributes as * they appeared before they were updated with the PutItem * request. For PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB * operations; however, PutItem does not recognize any values * other than NONE or ALL_OLD. *

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

* Use ReturnValues if you want to get the item attributes as they * appeared before they were updated with the PutItem request. For * PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB operations; * however, PutItem does not recognize any values other than * NONE or ALL_OLD. *

*
* * @param returnValues * Use ReturnValues if you want to get the item attributes as * they appeared before they were updated with the PutItem * request. For PutItem, 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 - If PutItem overwrote an attribute * name-value pair, then the content of the old item is returned. *

    *
  • *
* *

* The ReturnValues parameter is used by several DynamoDB * operations; however, PutItem does not recognize any values * other than NONE or ALL_OLD. *

* @return Returns a reference to this object so that method calls can be * chained together. * @see ReturnValue */ public PutItemRequest withReturnValues(ReturnValue returnValues) { setReturnValues(returnValues); return this; } /** * @param returnConsumedCapacity * @see ReturnConsumedCapacity */ public void setReturnConsumedCapacity(String returnConsumedCapacity) { this.returnConsumedCapacity = returnConsumedCapacity; } /** * @return * @see ReturnConsumedCapacity */ public String getReturnConsumedCapacity() { return this.returnConsumedCapacity; } /** * @param returnConsumedCapacity * @return Returns a reference to this object so that method calls can be * chained together. * @see ReturnConsumedCapacity */ public PutItemRequest withReturnConsumedCapacity( String returnConsumedCapacity) { setReturnConsumedCapacity(returnConsumedCapacity); return this; } /** * @param returnConsumedCapacity * @see ReturnConsumedCapacity */ public void setReturnConsumedCapacity( ReturnConsumedCapacity returnConsumedCapacity) { this.returnConsumedCapacity = returnConsumedCapacity.toString(); } /** * @param returnConsumedCapacity * @return Returns a reference to this object so that method calls can be * chained together. * @see ReturnConsumedCapacity */ public PutItemRequest withReturnConsumedCapacity( ReturnConsumedCapacity returnConsumedCapacity) { setReturnConsumedCapacity(returnConsumedCapacity); 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. *

* * @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. *

* * @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 this.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. *

* * @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 Returns a reference to this object so that method calls can be * chained together. * @see ReturnItemCollectionMetrics */ public PutItemRequest withReturnItemCollectionMetrics( String returnItemCollectionMetrics) { setReturnItemCollectionMetrics(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. *

* * @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. *

* * @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 Returns a reference to this object so that method calls can be * chained together. * @see ReturnItemCollectionMetrics */ public PutItemRequest withReturnItemCollectionMetrics( ReturnItemCollectionMetrics returnItemCollectionMetrics) { setReturnItemCollectionMetrics(returnItemCollectionMetrics); return this; } /** * *

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

*
*

* A logical operator to apply to the conditions in the Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then the * entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to true, * then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is the * default. *

*

* The operation will succeed only if the entire map evaluates to true. *

* *

* This parameter does not support attributes of type List or Map. *

*
* * @param conditionalOperator *

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do not * combine legacy parameters and expression parameters in a single * API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A logical operator to apply to the conditions in the * Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then * the entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to * true, then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is * the default. *

*

* The operation will succeed only if the entire map evaluates to * true. *

* *

* This parameter does not support attributes of type List or Map. *

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

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

*
*

* A logical operator to apply to the conditions in the Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then the * entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to true, * then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is the * default. *

*

* The operation will succeed only if the entire map evaluates to true. *

* *

* This parameter does not support attributes of type List or Map. *

*
* * @return

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do * not combine legacy parameters and expression parameters in a * single API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A logical operator to apply to the conditions in the * Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, * then the entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to * true, then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is * the default. *

*

* The operation will succeed only if the entire map evaluates to * true. *

* *

* This parameter does not support attributes of type List or Map. *

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

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

*
*

* A logical operator to apply to the conditions in the Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then the * entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to true, * then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is the * default. *

*

* The operation will succeed only if the entire map evaluates to true. *

* *

* This parameter does not support attributes of type List or Map. *

*
* * @param conditionalOperator *

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do not * combine legacy parameters and expression parameters in a single * API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A logical operator to apply to the conditions in the * Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then * the entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to * true, then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is * the default. *

*

* The operation will succeed only if the entire map evaluates to * true. *

* *

* This parameter does not support attributes of type List or Map. *

* @return Returns a reference to this object so that method calls can be * chained together. * @see ConditionalOperator */ public PutItemRequest withConditionalOperator(String conditionalOperator) { setConditionalOperator(conditionalOperator); return this; } /** * *

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

*
*

* A logical operator to apply to the conditions in the Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then the * entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to true, * then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is the * default. *

*

* The operation will succeed only if the entire map evaluates to true. *

* *

* This parameter does not support attributes of type List or Map. *

*
* * @param conditionalOperator *

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do not * combine legacy parameters and expression parameters in a single * API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A logical operator to apply to the conditions in the * Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then * the entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to * true, then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is * the default. *

*

* The operation will succeed only if the entire map evaluates to * true. *

* *

* This parameter does not support attributes of type List or Map. *

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

* This is a legacy parameter, for backward compatibility. New applications * should use ConditionExpression instead. Do not combine legacy * parameters and expression parameters in a single API call; otherwise, * DynamoDB will return a ValidationException exception. *

*
*

* A logical operator to apply to the conditions in the Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then the * entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to true, * then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is the * default. *

*

* The operation will succeed only if the entire map evaluates to true. *

* *

* This parameter does not support attributes of type List or Map. *

*
* * @param conditionalOperator *

* This is a legacy parameter, for backward compatibility. New * applications should use ConditionExpression instead. Do not * combine legacy parameters and expression parameters in a single * API call; otherwise, DynamoDB will return a * ValidationException exception. *

* *

* A logical operator to apply to the conditions in the * Expected map: *

*
    *
  • *

    * AND - If all of the conditions evaluate to true, then * the entire map evaluates to true. *

    *
  • *
  • *

    * OR - If at least one of the conditions evaluate to * true, then the entire map evaluates to true. *

    *
  • *
*

* If you omit ConditionalOperator, then AND is * the default. *

*

* The operation will succeed only if the entire map evaluates to * true. *

* *

* This parameter does not support attributes of type List or Map. *

* @return Returns a reference to this object so that method calls can be * chained together. * @see ConditionalOperator */ public PutItemRequest withConditionalOperator( ConditionalOperator conditionalOperator) { setConditionalOperator(conditionalOperator); return this; } /** *

* A condition that must be satisfied in order for a conditional * PutItem operation 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: * = | &#x3C;&#x3E; | &#x3C; | &#x3E; | &#x3C;= | &#x3E;= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

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

* *

* ConditionExpression replaces the legacy ConditionalOperator * and Expected parameters. *

*
* * @param conditionExpression * A condition that must be satisfied in order for a conditional * PutItem operation 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: * = | &#x3C;&#x3E; | &#x3C; | &#x3E; | &#x3C;= | &#x3E;= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

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

* *

* ConditionExpression replaces the legacy * ConditionalOperator and Expected parameters. *

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

* A condition that must be satisfied in order for a conditional * PutItem operation 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: * = | &#x3C;&#x3E; | &#x3C; | &#x3E; | &#x3C;= | &#x3E;= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

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

* *

* ConditionExpression replaces the legacy ConditionalOperator * and Expected parameters. *

*
* * @return A condition that must be satisfied in order for a conditional * PutItem operation 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: * = | &#x3C;&#x3E; | &#x3C; | &#x3E; | &#x3C;= | &#x3E;= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

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

* *

* ConditionExpression replaces the legacy * ConditionalOperator and Expected parameters. *

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

* A condition that must be satisfied in order for a conditional * PutItem operation 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: * = | &#x3C;&#x3E; | &#x3C; | &#x3E; | &#x3C;= | &#x3E;= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

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

* *

* ConditionExpression replaces the legacy ConditionalOperator * and Expected parameters. *

*
* * @param conditionExpression * A condition that must be satisfied in order for a conditional * PutItem operation 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: * = | &#x3C;&#x3E; | &#x3C; | &#x3E; | &#x3C;= | &#x3E;= | BETWEEN | IN *

    *
  • *
  • *

    * Logical operators: AND | OR | NOT *

    *
  • *
*

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

* *

* ConditionExpression replaces the legacy * ConditionalOperator and Expected parameters. *

* @return Returns a reference to this object so that method calls can be * chained together. */ public PutItemRequest withConditionExpression(String conditionExpression) { setConditionExpression(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. *

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

*
    *
  • *

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

    *
  • *
  • *

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

    *
  • *
  • *

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

    *
  • *
*

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

*
    *
  • *

    * Percentile *

    *
  • *
*

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

*
    *
  • *

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

    *
  • *
*

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

*
    *
  • *

    * #P = :val *

    *
  • *
* *

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

*
*

* For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer * Guide. * @return Returns a reference to this object so that method calls can be * chained together. */ public PutItemRequest withExpressionAttributeNames( java.util.Map expressionAttributeNames) { setExpressionAttributeNames(expressionAttributeNames); return this; } public PutItemRequest 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. <p> * Returns a reference to this object so that method calls can be chained * together. */ public PutItemRequest clearExpressionAttributeNamesEntries() { this.expressionAttributeNames = null; return this; } /** *

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

*

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

*

* Available | Backordered | Discontinued *

*

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

*

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

*

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

*

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

*

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

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

*

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

*

* Available | Backordered | Discontinued *

*

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

*

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

*

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

*

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

*

* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer * Guide. */ public java.util.Map getExpressionAttributeValues() { return expressionAttributeValues; } /** *

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

*

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

*

* Available | Backordered | Discontinued *

*

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

*

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

*

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

*

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

*

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

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

*

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

*

* Available | Backordered | Discontinued *

*

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

*

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

*

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

*

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

*

* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer * Guide. */ public void setExpressionAttributeValues( java.util.Map expressionAttributeValues) { this.expressionAttributeValues = expressionAttributeValues; } /** *

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

*

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

*

* Available | Backordered | Discontinued *

*

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

*

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

*

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

*

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

*

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

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

*

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

*

* Available | Backordered | Discontinued *

*

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

*

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

*

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

*

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

*

* For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer * Guide. * @return Returns a reference to this object so that method calls can be * chained together. */ public PutItemRequest withExpressionAttributeValues( java.util.Map expressionAttributeValues) { setExpressionAttributeValues(expressionAttributeValues); return this; } public PutItemRequest 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. <p> * Returns a reference to this object so that method calls can be chained * together. */ public PutItemRequest 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 (getItem() != null) sb.append("Item: " + getItem() + ","); if (getExpected() != null) sb.append("Expected: " + getExpected() + ","); if (getReturnValues() != null) sb.append("ReturnValues: " + getReturnValues() + ","); if (getReturnConsumedCapacity() != null) sb.append("ReturnConsumedCapacity: " + getReturnConsumedCapacity() + ","); if (getReturnItemCollectionMetrics() != null) sb.append("ReturnItemCollectionMetrics: " + getReturnItemCollectionMetrics() + ","); if (getConditionalOperator() != null) sb.append("ConditionalOperator: " + getConditionalOperator() + ","); 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 boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (obj instanceof PutItemRequest == false) return false; PutItemRequest other = (PutItemRequest) obj; if (other.getTableName() == null ^ this.getTableName() == null) return false; if (other.getTableName() != null && other.getTableName().equals(this.getTableName()) == false) return false; if (other.getItem() == null ^ this.getItem() == null) return false; if (other.getItem() != null && other.getItem().equals(this.getItem()) == 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.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.getConditionalOperator() == null ^ this.getConditionalOperator() == null) return false; if (other.getConditionalOperator() != null && other.getConditionalOperator().equals( this.getConditionalOperator()) == 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; } @Override public int hashCode() { final int prime = 31; int hashCode = 1; hashCode = prime * hashCode + ((getTableName() == null) ? 0 : getTableName().hashCode()); hashCode = prime * hashCode + ((getItem() == null) ? 0 : getItem().hashCode()); hashCode = prime * hashCode + ((getExpected() == null) ? 0 : getExpected().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 + ((getConditionalOperator() == null) ? 0 : getConditionalOperator().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 PutItemRequest clone() { return (PutItemRequest) super.clone(); } }





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