Package org.geotools.util

Class WeakCollectionCleaner

Object

Thread

WeakCollectionCleaner

All Implemented Interfaces:

Runnable

public final class WeakCollectionCleaner
extends Thread

A thread invoking Reference.clear() on each enqueded reference. This is usefull only if Reference subclasses has overridden their clear() method in order to perform some cleaning. This thread is used by WeakHashSet and WeakValueHashMap, which remove their entry from the collection when Reference.clear() is invoked.

Since:

2.0

Author:

Martin Desruisseaux (IRD)

Nested Class Summary

Nested classes/interfaces inherited from class Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
static final WeakCollectionCleaner	DEFAULT	The default thread.

Fields inherited from class Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Method Summary

Modifier and Type	Method	Description
void	exit()	Stops the cleaner thread.
ReferenceQueue<Object>	getReferenceQueue()
void	run()	Loop to be run during the virtual machine lifetime.

Methods inherited from class Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class Object

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

Field Details

DEFAULT

public static final WeakCollectionCleaner DEFAULT

The default thread.

Method Details

getReferenceQueue

public ReferenceQueue<Object> getReferenceQueue()

run

public void run()

Loop to be run during the virtual machine lifetime.

Specified by:

run in interface Runnable

Overrides:

run in class Thread

exit

public void exit()

Stops the cleaner thread. Calling this method is recommended in all long running applications with custom class loaders (e.g., web applications).