com.phloc.commons.concurrent.IExecutorServiceFactory Maven / Gradle / Ivy
/**
* Copyright (C) 2006-2015 phloc systems
* http://www.phloc.com
* office[at]phloc[dot]com
*
* 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 com.phloc.commons.concurrent;
import java.util.concurrent.ExecutorService;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
/**
* Factory for creating {@link ExecutorService} instances.
*
* @author Philip Helger
*/
public interface IExecutorServiceFactory
{
/**
* Get an {@link ExecutorService} for the given number of parallel tasks. It
* is up to the implementation to interpret the value or not. The number of
* parallel tasks can therefore considered a hint to the implementation.
*
* @param nParallelTasks
* The number of parallel tasks to perform. Needs to be > 0.
* @return A non-null {@link ExecutorService} object.
*/
@Nonnull
ExecutorService getExecutorService (@Nonnegative int nParallelTasks);
}