org.ws4d.java.util

Class WatchDog

java.lang.Object

org.ws4d.java.util.WatchDog

All Implemented Interfaces:

java.lang.Runnable

public class WatchDog
extends java.lang.Object
implements java.lang.Runnable

Field Summary

Fields

Modifier and Type	Field and Description
protected LinkedList	listEntries list
protected LockSupport	lock lock protects list

Method Summary

Modifier and Type	Method and Description
static WatchDog	getInstance()
void	register(TimedEntry timedEntry, long timeUntilTimeout) Registers timed object to observe.
void	run() Starts thread to remove timed out message requests.
void	stop() Stops thread, which handles timed entries.
void	unregister(TimedEntry timedEntry) Disables timed entry from managed objects of watchdog.
void	update(TimedEntry timedEntry, long timeUntilTimeout) Updates timed entry with new time until timeout within managed objects of watchdog.

Methods inherited from class java.lang.Object

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

Field Detail

listEntries

protected final LinkedList listEntries

list

lock

protected LockSupport lock

lock protects list

Method Detail

getInstance

public static WatchDog getInstance()

register

public void register(TimedEntry timedEntry,
                     long timeUntilTimeout)

Registers timed object to observe.

Parameters:

timedEntry -

timeUntilTimeout -

unregister

public void unregister(TimedEntry timedEntry)

Disables timed entry from managed objects of watchdog. Removing will occur later.

Parameters:

timedEntry -

update

public void update(TimedEntry timedEntry,
                   long timeUntilTimeout)

Updates timed entry with new time until timeout within managed objects of watchdog.

Parameters:

timedEntry -

timeUntilTimeout -

run

public void run()

Starts thread to remove timed out message requests.

Specified by:

run in interface java.lang.Runnable

stop

public void stop()

Stops thread, which handles timed entries.