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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 2014-2020 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.document;

import com.amazonaws.services.dynamodbv2.document.internal.InternalUtils;


/**
 * A condition for selecting items with a range key.  Typical usages:
 * 
* new RangeKeyCondition("strAttr").eq("attrValue"); *

* new RangeKeyCondition("intAttr").gt(42); *

* ... *

*/ public class RangeKeyCondition { private final String attrName; private KeyConditions kcond; private Object[] values; /** * A condition for selecting items with a range key. Typical usages: *
* new RangeKeyCondition("strAttr").eq("attrValue"); *

* new RangeKeyCondition("intAttr").gt(42); *

* ... *

*/ public RangeKeyCondition(String attrName) { InternalUtils.checkInvalidAttrName(attrName); this.attrName = attrName; } public String getAttrName() { return attrName; } public KeyConditions getKeyCondition() { return kcond; } public Object[] getValues() { return values == null ? null : values.clone(); } /** * Creates and returns a condition of the range key being equal to the given * value. */ public RangeKeyCondition eq(Object val) { kcond = KeyConditions.EQ; return withValues(val); } /** * Creates and returns a condition of the range key with a value that begins * with the given value. */ public RangeKeyCondition beginsWith(String val) { kcond = KeyConditions.BEGINS_WITH; return withValues(val); } /** * Creates and returns a condition of the range key that has a value between * the given values. */ public RangeKeyCondition between(Object low, Object hi) { kcond = KeyConditions.BETWEEN; return withValues(low, hi); } /** * Creates and returns a condition of the range key being greater than or * equal to the given value. */ public RangeKeyCondition ge(Object val) { kcond = KeyConditions.GE; return withValues(val); } /** * Creates and returns a condition of the range key being greater than the * given value. */ public RangeKeyCondition gt(Object val) { kcond = KeyConditions.GT; return withValues(val); } /** * Creates and returns a condition of the range key being less than or equal * to the given value. */ public RangeKeyCondition le(Object val) { kcond = KeyConditions.LE; return withValues(val); } /** * Creates and returns a condition of the range key being less than the * given value. */ public RangeKeyCondition lt(Object val) { kcond = KeyConditions.LT; return withValues(val); } private RangeKeyCondition withValues(Object ... values) { this.values = values; return this; } }




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