org.jboss.dashboard.scheduler
Class PausableThreadPoolExecutor

java.lang.Object
  java.util.concurrent.AbstractExecutorService
      java.util.concurrent.ThreadPoolExecutor
          java.util.concurrent.ScheduledThreadPoolExecutor
              org.jboss.dashboard.scheduler.PausableThreadPoolExecutor

All Implemented Interfaces:

Executor, ExecutorService, ScheduledExecutorService

public class PausableThreadPoolExecutor
extends ScheduledThreadPoolExecutor

A scheduler implementation that adds pause/resume capabilities to the standard scheduler.

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.ThreadPoolExecutor

ThreadPoolExecutor.AbortPolicy, ThreadPoolExecutor.CallerRunsPolicy, ThreadPoolExecutor.DiscardOldestPolicy, ThreadPoolExecutor.DiscardPolicy

Field Summary

protected boolean	isPaused
protected ReentrantLock	pauseLock
protected Condition	unpaused

Constructor Summary

PausableThreadPoolExecutor(int corePoolSize)

PausableThreadPoolExecutor(int corePoolSize, RejectedExecutionHandler handler)

PausableThreadPoolExecutor(int corePoolSize, ThreadFactory threadFactory)

PausableThreadPoolExecutor(int corePoolSize, ThreadFactory threadFactory, RejectedExecutionHandler handler)

Method Summary

protected void	beforeExecute(Thread t, Runnable r)
boolean	isPaused()
void	pause()
void	resume()

Methods inherited from class java.util.concurrent.ScheduledThreadPoolExecutor

decorateTask, decorateTask, execute, getContinueExistingPeriodicTasksAfterShutdownPolicy, getExecuteExistingDelayedTasksAfterShutdownPolicy, getQueue, remove, schedule, schedule, scheduleAtFixedRate, scheduleWithFixedDelay, setContinueExistingPeriodicTasksAfterShutdownPolicy, setExecuteExistingDelayedTasksAfterShutdownPolicy, shutdown, shutdownNow, submit, submit, submit

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

afterExecute, allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, finalize, getActiveCount, getCompletedTaskCount, getCorePoolSize, getKeepAliveTime, getLargestPoolSize, getMaximumPoolSize, getPoolSize, getRejectedExecutionHandler, getTaskCount, getThreadFactory, isShutdown, isTerminated, isTerminating, prestartAllCoreThreads, prestartCoreThread, purge, setCorePoolSize, setKeepAliveTime, setMaximumPoolSize, setRejectedExecutionHandler, setThreadFactory, terminated

Methods inherited from class java.util.concurrent.AbstractExecutorService

invokeAll, invokeAll, invokeAny, invokeAny, newTaskFor, newTaskFor

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.concurrent.ExecutorService

awaitTermination, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isTerminated

Field Detail

isPaused

protected boolean isPaused

pauseLock

protected ReentrantLock pauseLock

unpaused

protected Condition unpaused

Constructor Detail

PausableThreadPoolExecutor

public PausableThreadPoolExecutor(int corePoolSize)

PausableThreadPoolExecutor

public PausableThreadPoolExecutor(int corePoolSize,
                                  RejectedExecutionHandler handler)

PausableThreadPoolExecutor

public PausableThreadPoolExecutor(int corePoolSize,
                                  ThreadFactory threadFactory)

PausableThreadPoolExecutor

public PausableThreadPoolExecutor(int corePoolSize,
                                  ThreadFactory threadFactory,
                                  RejectedExecutionHandler handler)

Method Detail

beforeExecute

protected void beforeExecute(Thread t,
                             Runnable r)

Overrides:

beforeExecute in class ThreadPoolExecutor

pause

public void pause()

resume

public void resume()

isPaused

public boolean isPaused()