org.sourceforge.jemm.client.shared
Class WeakSingletonFactory<K,V>

java.lang.Object
  org.sourceforge.jemm.client.shared.WeakSingletonFactory<K,V>

Direct Known Subclasses:

JEMMObjectFactory, TrackedIDFactoryImpl

public abstract class WeakSingletonFactory<K,V>
extends java.lang.Object

Field Summary

protected EnhancedConcurrentHashMap<K,java.lang.ref.WeakReference<V>>	keysToWeakRefs
protected java.lang.ref.ReferenceQueue<V>	queue
protected java.lang.Thread	queueListener
protected java.util.Map<java.lang.ref.WeakReference<V>,K>	refsToKeys

Constructor Summary

WeakSingletonFactory()

Method Summary

boolean	contains(K key)
V	create(K k)
protected abstract V	createValue(K k)
V	get(K k)
protected abstract void	notifyExpired(K k)
void	put(K key, V value)
void	remove(K key)
void	shutdown() Stops the listener thread and releases native resources.
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

keysToWeakRefs

protected final EnhancedConcurrentHashMap<K,java.lang.ref.WeakReference<V>> keysToWeakRefs

refsToKeys

protected final java.util.Map<java.lang.ref.WeakReference<V>,K> refsToKeys

queue

protected final java.lang.ref.ReferenceQueue<V> queue

queueListener

protected final java.lang.Thread queueListener

Constructor Detail

WeakSingletonFactory

public WeakSingletonFactory()

Method Detail

put

public void put(K key,
                V value)

contains

public boolean contains(K key)

size

public int size()

notifyExpired

protected abstract void notifyExpired(K k)

get

public V get(K k)

remove

public void remove(K key)

shutdown

public void shutdown()

Stops the listener thread and releases native resources.

create

public V create(K k)

createValue

protected abstract V createValue(K k)