/*
* Copyright 2002-2013 the original author or 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 org.springframework.core.task;
import java.util.concurrent.Callable;
import org.springframework.util.concurrent.ListenableFuture;
/**
* Extension of the {@link AsyncTaskExecutor} interface, adding the capability to submit
* tasks for {@link ListenableFuture}s.
*
* @author Arjen Poutsma
* @since 4.0
* @see ListenableFuture
*/
public interface AsyncListenableTaskExecutor extends AsyncTaskExecutor {
/**
* Submit a {@code Runnable} task for execution, receiving a {@code ListenableFuture}
* representing that task. The Future will return a {@code null} result upon completion.
* @param task the {@code Runnable} to execute (never {@code null})
* @return a {@code ListenableFuture} representing pending completion of the task
* @throws TaskRejectedException if the given task was not accepted
*/
ListenableFuture<?> submitListenable(Runnable task);
/**
* Submit a {@code Callable} task for execution, receiving a {@code ListenableFuture}
* representing that task. The Future will return the Callable's result upon
* completion.
* @param task the {@code Callable} to execute (never {@code null})
* @return a {@code ListenableFuture} representing pending completion of the task
* @throws TaskRejectedException if the given task was not accepted
*/
<T> ListenableFuture<T> submitListenable(Callable<T> task);
}