1/*
2 * Copyright (C) 2011 The Guava Authors
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.google.common.util.concurrent;
18
19import com.google.common.annotations.Beta;
20
21import java.util.concurrent.Callable;
22import java.util.concurrent.ScheduledExecutorService;
23import java.util.concurrent.TimeUnit;
24
25/**
26 * A {@link ScheduledExecutorService} that returns {@link ListenableFuture}
27 * instances from its {@code ExecutorService} methods. To create an instance
28 * from an existing {@link ScheduledExecutorService}, call
29 * {@link MoreExecutors#listeningDecorator(ScheduledExecutorService)}.
30 *
31 * @author Chris Povirk
32 * @since 10.0
33 */
34@Beta
35public interface ListeningScheduledExecutorService
36    extends ScheduledExecutorService, ListeningExecutorService {
37
38  /** @since 15.0 (previously returned ScheduledFuture) */
39  @Override
40  ListenableScheduledFuture<?> schedule(
41      Runnable command, long delay, TimeUnit unit);
42
43  /** @since 15.0 (previously returned ScheduledFuture) */
44  @Override
45  <V> ListenableScheduledFuture<V> schedule(
46      Callable<V> callable, long delay, TimeUnit unit);
47
48  /** @since 15.0 (previously returned ScheduledFuture) */
49  @Override
50  ListenableScheduledFuture<?> scheduleAtFixedRate(
51      Runnable command, long initialDelay, long period, TimeUnit unit);
52
53  /** @since 15.0 (previously returned ScheduledFuture) */
54  @Override
55  ListenableScheduledFuture<?> scheduleWithFixedDelay(
56      Runnable command, long initialDelay, long delay, TimeUnit unit);
57}
58