| /* |
| * 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.compatqual.NullableDecl; |
| |
| /** |
| * 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 {@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 {@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, @NullableDecl T result) { |
| return (ListenableFuture<T>) super.submit(task, result); |
| } |
| |
| @Override |
| public <T> ListenableFuture<T> submit(Callable<T> task) { |
| return (ListenableFuture<T>) super.submit(task); |
| } |
| } |