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/*
 * Copyright 2011-2015 Amazon Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *    http://aws.amazon.com/apache2.0
 *
 * 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.datamodeling;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Annotation for marking a property as the hash key for a modeled class.
 * Applied to the getter method or the class field for a hash key property. If
 * the annotation is applied directly to the class field, the corresponding
 * getter and setter must be declared in the same class.
 * 
 * This annotation is required.
 * @deprecated These classes have been deprecated, please use the classes in the com.amazonaws.mobileconnectors namespace.
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD})
public @interface DynamoDBHashKey {

    /**
     * Optional parameter when the name of the attribute as stored in DynamoDB
     * should differ from the name used by the getter / setter.
     */
    String attributeName() default "";
}