/*
* 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 com.google.common.annotations.GwtIncompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.concurrent.AbstractExecutorService;
import java.util.concurrent.Callable;
import java.util.concurrent.RunnableFuture;
import org.checkerframework.checker.nullness.qual.Nullable;
Abstract ListeningExecutorService
implementation that creates ListenableFuture
instances for each Runnable
and Callable
submitted to it. These tasks are run with the abstract execute(Runnable)
method. In addition to Executor.execute
, subclasses must implement all methods related to shutdown and termination.
Author: Chris Povirk Since: 14.0
/**
* Abstract {@link ListeningExecutorService} implementation that creates {@link ListenableFuture}
* 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
@CanIgnoreReturnValue
@GwtIncompatible
public abstract class AbstractListeningExecutorService extends AbstractExecutorService
implements ListeningExecutorService {
Since: 19.0 (present with return type ListenableFutureTask
since 14.0)
/** @since 19.0 (present with return type {@code ListenableFutureTask} since 14.0) */
@Override
protected final <T> RunnableFuture<T> newTaskFor(Runnable runnable, T value) {
return TrustedListenableFutureTask.create(runnable, value);
}
Since: 19.0 (present with return type ListenableFutureTask
since 14.0)
/** @since 19.0 (present with return type {@code ListenableFutureTask} since 14.0) */
@Override
protected final <T> RunnableFuture<T> newTaskFor(Callable<T> callable) {
return TrustedListenableFutureTask.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);
}
}