/*
* Copyright (c) 2008-2017, 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;
import java.util.concurrent.Executor;
import java.util.concurrent.Future;
/**
* A Future where one can asynchronously listen on completion. This functionality is needed for the
* reactive programming model.
*
* For more information see:
* http://download.java.net/jdk8/docs/api/java/util/concurrent/CompletableFuture.html
*
* This class can be dropped once Hazelcast relies on Java8+. It is added to make Hazelcast compatible
* with Java6/7.
*
* @param <V>
* @since 3.2
*/
public interface ICompletableFuture<V> extends Future<V> {
/**
* Registers a callback that will run after the future is completed.
* Please note that there is no ordering guarantee for running multiple callbacks.
* It is also not guaranteed that the callback will run within the same thread that completes the future.
*
* @param callback the callback to execute
*/
void andThen(ExecutionCallback<V> callback);
/**
* Registers a callback that will run with the provided executor after the future is completed.
* Please note that there is no ordering guarantee for executing multiple callbacks.
*
* @param callback the callback to execute
* @param executor the executor in which the callback will be run
*/
void andThen(ExecutionCallback<V> callback, Executor executor);
}