001/*
002 * Copyright (C) 2011 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.common.util.concurrent;
018
019import com.google.common.annotations.Beta;
020
021import java.util.concurrent.ScheduledExecutorService;
022
023/**
024 * A {@link ScheduledExecutorService} that returns {@link ListenableFuture}
025 * instances from its {@code ExecutorService} methods.  Futures returned by the
026 * {@code schedule*} methods, by contrast, need not implement {@code
027 * ListenableFuture}.  (To create an instance from an existing {@link
028 * ScheduledExecutorService}, call {@link
029 * MoreExecutors#listeningDecorator(ScheduledExecutorService)}.
030 *
031 * <p>TODO(cpovirk): make at least the one-time schedule() methods return a
032 * ListenableFuture, too? But then we'll need ListenableScheduledFuture...
033 *
034 * @author Chris Povirk
035 * @since 10.0
036 */
037@Beta
038public interface ListeningScheduledExecutorService
039    extends ScheduledExecutorService, ListeningExecutorService {
040}