compact1, compact2, compact3

java.lang.ref

Class WeakReference<T>

java.lang.Object

java.lang.ref.Reference<T>

java.lang.ref.WeakReference<T>

public class WeakReference<T>
extends Reference<T>

WeakReference objects are used to detect referents which are no longer visible.

Since:

1.2

Version:

initial

Constructor Summary

Constructors

Constructor and Description
WeakReference(T r) Constructs a new instance of this class.
WeakReference(T r, ReferenceQueue<? super T> q) Constructs a new instance of this class.

Method Summary

Methods inherited from class java.lang.ref.Reference

clear, enqueue, get, isEnqueued

Methods inherited from class java.lang.Object

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

Constructor Detail

WeakReference

public WeakReference(T r,
                     ReferenceQueue<? super T> q)

Constructs a new instance of this class.

Parameters:

r - referent to track.

q - queue to register to the reference object with.

WeakReference

public WeakReference(T r)

Constructs a new instance of this class.

Parameters:

r - referent to track.