com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBIndexHashKey Maven / Gradle / Ivy
/*
* Copyright 2011-2021 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.
* 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 in a class as the attribute to be used as
* the hash key for one or more global secondary indexes on a DynamoDB table.
* Applied to the getter method or the class field for the index 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 if this attribute will be used as index key for
* item queries.
*/
@DynamoDB
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD})
public @interface DynamoDBIndexHashKey {
/**
* 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 "";
/**
* Parameter for the name of the global secondary index.
*
* This is required if this attribute is the index key for only one global secondary
* index.
*/
String globalSecondaryIndexName() default "";
/**
* Parameter for the names of the global secondary indexes.
* This is required if this attribute is the index key for multiple global secondary
* indexes.
*/
String[] globalSecondaryIndexNames() default {};
}