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}