/*
* Copyright (C) 2011 The Guava Authors
*
* 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.google.common.util.concurrent;
import com.google.common.annotations.Beta;
import java.util.concurrent.AbstractExecutorService;
import java.util.concurrent.Callable;
import javax.annotation.Nullable;
/**
* Abstract {@link ListeningExecutorService} implementation that creates
* {@link ListenableFutureTask} instances for each {@link Runnable} and {@link Callable} submitted
* to it. These tasks are run with the abstract {@link #execute execute(Runnable)} method.
*
* <p>In addition to {@link #execute}, subclasses must implement all methods related to shutdown and
* termination.
*
* @author Chris Povirk
* @since 14.0
*/
@Beta
public abstract class AbstractListeningExecutorService
extends AbstractExecutorService implements ListeningExecutorService {
@Override protected final <T> ListenableFutureTask<T> newTaskFor(Runnable runnable, T value) {
return ListenableFutureTask.create(runnable, value);
}
@Override protected final <T> ListenableFutureTask<T> newTaskFor(Callable<T> callable) {
return ListenableFutureTask.create(callable);
}
@Override public ListenableFuture<?> submit(Runnable task) {
return (ListenableFuture<?>) super.submit(task);
}
@Override public <T> ListenableFuture<T> submit(Runnable task, @Nullable T result) {
return (ListenableFuture<T>) super.submit(task, result);
}
@Override public <T> ListenableFuture<T> submit(Callable<T> task) {
return (ListenableFuture<T>) super.submit(task);
}
}