com.amazonaws.services.dynamodbv2.model.Condition Maven / Gradle / Ivy
Show all versions of aws-java-sdk-dynamodb Show documentation
/*
* Copyright 2010-2014 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;
/**
*
* Represents the selection criteria for a Query or Scan
* operation:
*
*
*
* -
* For a Query operation, Condition is used for specifying
* the KeyConditions to use when querying a table or an index. For
* KeyConditions ,
* only the following comparison operators are supported:
*
*
* EQ | LE | LT | GE | GT | BEGINS_WITH | BETWEEN
*
*
* Condition is also used in a QueryFilter , which
* evaluates the query results and returns only the desired values.
*
*
* -
* For a Scan operation, Condition is used in a
* ScanFilter , which evaluates the scan results and returns only
* the desired values.
*
*
*
*
*/
public class Condition implements Serializable {
/**
* 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*/
private com.amazonaws.internal.ListWithAutoConstructFlag attributeValueList;
/**
* A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc. The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* Constraints:
* Allowed Values: EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
*/
private String comparisonOperator;
/**
* Default constructor for a new Condition object. Callers should use the
* setter or fluent setter (with...) methods to initialize this object after creating it.
*/
public Condition() {}
/**
* 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*
* @return 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*/
public java.util.List getAttributeValueList() {
return 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*
* @param 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*/
public void setAttributeValueList(java.util.Collection attributeValueList) {
if (attributeValueList == null) {
this.attributeValueList = null;
return;
}
com.amazonaws.internal.ListWithAutoConstructFlag attributeValueListCopy = new com.amazonaws.internal.ListWithAutoConstructFlag(attributeValueList.size());
attributeValueListCopy.addAll(attributeValueList);
this.attributeValueList = attributeValueListCopy;
}
/**
* 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public Condition withAttributeValueList(AttributeValue... attributeValueList) {
if (getAttributeValueList() == null) setAttributeValueList(new java.util.ArrayList(attributeValueList.length));
for (AttributeValue value : attributeValueList) {
getAttributeValueList().add(value);
}
return this;
}
/**
* 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param 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 aa is greater than
* B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
*
For Binary, DynamoDB treats each byte of the binary data as
* unsigned when it compares binary values, for example when evaluating
* query expressions.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public Condition withAttributeValueList(java.util.Collection attributeValueList) {
if (attributeValueList == null) {
this.attributeValueList = null;
} else {
com.amazonaws.internal.ListWithAutoConstructFlag attributeValueListCopy = new com.amazonaws.internal.ListWithAutoConstructFlag(attributeValueList.size());
attributeValueListCopy.addAll(attributeValueList);
this.attributeValueList = attributeValueListCopy;
}
return this;
}
/**
* A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc. The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* Constraints:
* Allowed Values: EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
*
* @return A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* @see ComparisonOperator
*/
public String getComparisonOperator() {
return comparisonOperator;
}
/**
* A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* Constraints:
* Allowed Values: EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
*
* @param comparisonOperator A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* @see ComparisonOperator
*/
public void setComparisonOperator(String comparisonOperator) {
this.comparisonOperator = comparisonOperator;
}
/**
* A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
*
* @param comparisonOperator A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified in the request, the value does
* not match. For example, {"S":"6"} does not compare to
* {"N":"6"}. Also, {"N":"6"} does not compare
* to {"NS":["6", "2", "1"]}
For usage
* examples of AttributeValueList and ComparisonOperator,
* see Legacy
* Conditional Parameters in the Amazon DynamoDB Developer
* Guide.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*
* @see ComparisonOperator
*/
public Condition withComparisonOperator(String comparisonOperator) {
this.comparisonOperator = comparisonOperator;
return this;
}
/**
* A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* Constraints:
* Allowed Values: EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
*
* @param comparisonOperator A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* @see ComparisonOperator
*/
public void setComparisonOperator(ComparisonOperator comparisonOperator) {
this.comparisonOperator = comparisonOperator.toString();
}
/**
* A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified 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.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Allowed Values: EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
*
* @param comparisonOperator A comparator for evaluating attributes. For example, equals, greater
* than, less than, etc.
The following comparison operators are
* available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL |
* CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
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
* specified in the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
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 specified in
* the request, the value does not match. For example,
* {"S":"6"} does not equal {"N":"6"}. Also,
* {"N":"6"} does not equal {"NS":["6", "2",
* "1"]}.
-
LE : Less than or equal.
*
AttributeValueList can contain only one
* AttributeValue element of type String, Number, or Binary (not a
* set type). If an item contains an AttributeValue element of a
* different type than the one specified 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 specified 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 specified 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
* specified 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 specified in the request, the value does
* not match. For example, {"S":"6"} does not compare to
* {"N":"6"}. Also, {"N":"6"} does not compare
* to {"NS":["6", "2", "1"]}
For usage
* examples of AttributeValueList and ComparisonOperator,
* see Legacy
* Conditional Parameters in the Amazon DynamoDB Developer
* Guide.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*
* @see ComparisonOperator
*/
public Condition withComparisonOperator(ComparisonOperator comparisonOperator) {
this.comparisonOperator = comparisonOperator.toString();
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 (getAttributeValueList() != null) sb.append("AttributeValueList: " + getAttributeValueList() + ",");
if (getComparisonOperator() != null) sb.append("ComparisonOperator: " + getComparisonOperator() );
sb.append("}");
return sb.toString();
}
@Override
public int hashCode() {
final int prime = 31;
int hashCode = 1;
hashCode = prime * hashCode + ((getAttributeValueList() == null) ? 0 : getAttributeValueList().hashCode());
hashCode = prime * hashCode + ((getComparisonOperator() == null) ? 0 : getComparisonOperator().hashCode());
return hashCode;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof Condition == false) return false;
Condition other = (Condition)obj;
if (other.getAttributeValueList() == null ^ this.getAttributeValueList() == null) return false;
if (other.getAttributeValueList() != null && other.getAttributeValueList().equals(this.getAttributeValueList()) == false) return false;
if (other.getComparisonOperator() == null ^ this.getComparisonOperator() == null) return false;
if (other.getComparisonOperator() != null && other.getComparisonOperator().equals(this.getComparisonOperator()) == false) return false;
return true;
}
}