001/* 002 * Copyright (C) 2011 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 005 * in compliance with the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License 010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 011 * or implied. See the License for the specific language governing permissions and limitations under 012 * the License. 013 */ 014 015package com.google.common.util.concurrent; 016 017import com.google.common.annotations.GwtIncompatible; 018import com.google.common.annotations.J2ktIncompatible; 019import java.util.concurrent.Callable; 020import java.util.concurrent.ScheduledExecutorService; 021import java.util.concurrent.TimeUnit; 022import org.checkerframework.checker.nullness.qual.Nullable; 023 024/** 025 * A {@link ScheduledExecutorService} that returns {@link ListenableFuture} instances from its 026 * {@code ExecutorService} methods. To create an instance from an existing {@link 027 * ScheduledExecutorService}, call {@link 028 * MoreExecutors#listeningDecorator(ScheduledExecutorService)}. 029 * 030 * @author Chris Povirk 031 * @since 10.0 032 */ 033@J2ktIncompatible 034@GwtIncompatible 035@ElementTypesAreNonnullByDefault 036public interface ListeningScheduledExecutorService 037 extends ScheduledExecutorService, ListeningExecutorService { 038 039 /** @since 15.0 (previously returned ScheduledFuture) */ 040 @Override 041 ListenableScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit); 042 043 /** @since 15.0 (previously returned ScheduledFuture) */ 044 @Override 045 <V extends @Nullable Object> ListenableScheduledFuture<V> schedule( 046 Callable<V> callable, long delay, TimeUnit unit); 047 048 /** @since 15.0 (previously returned ScheduledFuture) */ 049 @Override 050 ListenableScheduledFuture<?> scheduleAtFixedRate( 051 Runnable command, long initialDelay, long period, TimeUnit unit); 052 053 /** @since 15.0 (previously returned ScheduledFuture) */ 054 @Override 055 ListenableScheduledFuture<?> scheduleWithFixedDelay( 056 Runnable command, long initialDelay, long delay, TimeUnit unit); 057}