org.eclipse.jetty.util.thread.ThreadPool Maven / Gradle / Ivy
// ========================================================================
// Copyright (c) 2004-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
package org.eclipse.jetty.util.thread;
import org.eclipse.jetty.util.component.LifeCycle;
/* ------------------------------------------------------------ */
/** ThreadPool.
*
*
*/
public interface ThreadPool
{
/* ------------------------------------------------------------ */
public abstract boolean dispatch(Runnable job);
/* ------------------------------------------------------------ */
/**
* Blocks until the thread pool is {@link LifeCycle#stop stopped}.
*/
public void join() throws InterruptedException;
/* ------------------------------------------------------------ */
/**
* @return The total number of threads currently in the pool
*/
public int getThreads();
/* ------------------------------------------------------------ */
/**
* @return The number of idle threads in the pool
*/
public int getIdleThreads();
/* ------------------------------------------------------------ */
/**
* @return True if the pool is low on threads
*/
public boolean isLowOnThreads();
}