ej.bon

Class EnqueuedWeakReference<T>

java.lang.Object

java.lang.ref.Reference<T>

java.lang.ref.WeakReference<T>

ej.bon.EnqueuedWeakReference<T>

Type Parameters:

T - the type of enqueued objects

public class EnqueuedWeakReference<T>
extends WeakReference<T>

EnqueuedWeakReference are objects that are queued in an ReferenceQueue by the system when the object they point at (see Reference.get()) is set to null by the system. A typical use is to subclass EnqueuedWeakReference with classes that hold native handles that need to be freed at the native level.

Constructor Summary

Constructors

Constructor and Description
EnqueuedWeakReference(T ref, ReferenceQueue<? super T> queue) Creates a new EnqueuedWeakReference.

Method Summary

Methods inherited from class java.lang.ref.Reference

clear, enqueue, get, isEnqueued

Methods inherited from class java.lang.Object

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

Constructor Detail

EnqueuedWeakReference

public EnqueuedWeakReference(T ref,
                             @Nullable
                             ReferenceQueue<? super T> queue)

Creates a new EnqueuedWeakReference.

The given reference can be retrieved using Reference.get() until the object is garbage collected. Then the method will return null.

Parameters:

ref - object the new weak reference will refer to

queue - the queue with which the reference is to be registered