Package org.eclipse.jetty.util.thread

Class ScheduledExecutorScheduler

java.lang.Object

org.eclipse.jetty.util.component.AbstractLifeCycle

org.eclipse.jetty.util.thread.ScheduledExecutorScheduler

All Implemented Interfaces:

Dumpable, LifeCycle, Scheduler

public class ScheduledExecutorScheduler
extends AbstractLifeCycle
implements Scheduler, Dumpable

Implementation of Scheduler based on JDK's ScheduledThreadPoolExecutor.

While use of ScheduledThreadPoolExecutor creates futures that will not be used, it has the advantage of allowing to set a property to remove cancelled tasks from its queue even if the task did not fire, which provides a huge benefit in the performance of garbage collection in young generation.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

AbstractLifeCycle.AbstractLifeCycleListener

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.LifeCycle

LifeCycle.Listener

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.thread.Scheduler

Scheduler.Task

Field Summary

Fields inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

FAILED, RUNNING, STARTED, STARTING, STOPPED, STOPPING

Fields inherited from interface org.eclipse.jetty.util.component.Dumpable

KEY

Constructor Summary

Constructors

Constructor	Description
ScheduledExecutorScheduler()
ScheduledExecutorScheduler(String name, boolean daemon)
ScheduledExecutorScheduler(String name, boolean daemon, ClassLoader threadFactoryClassLoader)
ScheduledExecutorScheduler(String name, boolean daemon, ClassLoader threadFactoryClassLoader, ThreadGroup threadGroup)

Method Summary

Modifier and Type	Method	Description
protected void	doStart()
protected void	doStop()
String	dump()
void	dump(Appendable out, String indent)	Dump this object (and children) into an Appendable using the provided indent after any new lines.
Scheduler.Task	schedule(Runnable task, long delay, TimeUnit unit)

Methods inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

addLifeCycleListener, getState, getState, getStopTimeout, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, setStopTimeout, start, stop, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jetty.util.component.LifeCycle

addLifeCycleListener, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, start, stop

Constructor Detail

ScheduledExecutorScheduler

public ScheduledExecutorScheduler()

ScheduledExecutorScheduler

public ScheduledExecutorScheduler(String name,
                                  boolean daemon)

ScheduledExecutorScheduler

public ScheduledExecutorScheduler(String name,
                                  boolean daemon,
                                  ClassLoader threadFactoryClassLoader)

ScheduledExecutorScheduler

public ScheduledExecutorScheduler(String name,
                                  boolean daemon,
                                  ClassLoader threadFactoryClassLoader,
                                  ThreadGroup threadGroup)

Method Detail

doStart

protected void doStart()
                throws Exception

Overrides:

doStart in class AbstractLifeCycle

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Overrides:

doStop in class AbstractLifeCycle

Throws:

Exception

schedule

public Scheduler.Task schedule(Runnable task,
                               long delay,
                               TimeUnit unit)

Specified by:

schedule in interface Scheduler

dump

public String dump()

Specified by:

dump in interface Dumpable

dump

public void dump(Appendable out,
                 String indent)
          throws IOException

Description copied from interface: Dumpable

Dump this object (and children) into an Appendable using the provided indent after any new lines. The indent should not be applied to the first object dumped.

Specified by:

dump in interface Dumpable

Parameters:

out - The appendable to dump to

indent - The indent to apply after any new lines.

Throws:

IOException