/*
* Copyright (c) 2008-2013, Hazelcast, Inc. 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://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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.hazelcast.core;
/**
* PartitionAware allows implementing keys to be located on the same member
* or implementing tasks to be executed on {@link #getPartitionKey()}'s owner member.
* This makes related data to be stored in the same location. (See data-affinity.)
*
* @param <T> key type
*/
public interface PartitionAware<T> {
/**
* The key object that will be used by Hazelcast to specify the partition.
* You should give the same key for objects that you want them to locate in the same partition.
*
* @return partition key
*/
T getPartitionKey();
}