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

@ManagedObject
@Deprecated(since="2021-05-27")
public class ScheduledExecutorScheduler
extends AbstractLifeCycle
implements Scheduler, Dumpable

Deprecated.

The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.

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.Dumpable

Dumpable.DumpableContainer

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()	Deprecated.
ScheduledExecutorScheduler(String name, boolean daemon)	Deprecated.
ScheduledExecutorScheduler(String name, boolean daemon, int threads)	Deprecated.
ScheduledExecutorScheduler(String name, boolean daemon, ClassLoader classLoader)	Deprecated.
ScheduledExecutorScheduler(String name, boolean daemon, ClassLoader classLoader, ThreadGroup threadGroup)	Deprecated.
ScheduledExecutorScheduler(String name, boolean daemon, ClassLoader classLoader, ThreadGroup threadGroup, int threads)	Deprecated.

Method Summary

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

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

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

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

dumpSelf

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()

Deprecated.

ScheduledExecutorScheduler

public ScheduledExecutorScheduler(String name,
                                  boolean daemon)

Deprecated.

ScheduledExecutorScheduler

public ScheduledExecutorScheduler(@Name("name")
                                  String name,
                                  @Name("daemon")
                                  boolean daemon,
                                  @Name("threads")
                                  int threads)

Deprecated.

ScheduledExecutorScheduler

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

Deprecated.

ScheduledExecutorScheduler

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

Deprecated.

ScheduledExecutorScheduler

public ScheduledExecutorScheduler(@Name("name")
                                  String name,
                                  @Name("daemon")
                                  boolean daemon,
                                  @Name("classLoader")
                                  ClassLoader classLoader,
                                  @Name("threadGroup")
                                  ThreadGroup threadGroup,
                                  @Name("threads")
                                  int threads)

Deprecated.

Parameters:

name - The name of the scheduler threads or null for automatic name

daemon - True if scheduler threads should be daemon

classLoader - The classloader to run the threads with or null to use the current thread context classloader

threadGroup - The threadgroup to use or null for no thread group

threads - The number of threads to pass to the the core ScheduledThreadPoolExecutor or -1 for a heuristic determined number of threads.

Method Detail

schedule

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

Deprecated.

Specified by:

schedule in interface Scheduler

dump

public String dump()

Deprecated.

Specified by:

dump in interface Dumpable

dump

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

Deprecated.

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 - if unable to write to Appendable

getName

@ManagedAttribute("The name of the scheduler")
public String getName()

Deprecated.

isDaemon

@ManagedAttribute("Whether the scheduler uses daemon threads")
public boolean isDaemon()

Deprecated.

getThreads

@ManagedAttribute("The number of scheduler threads")
public int getThreads()

Deprecated.