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Java Platform 1.2
Beta 4

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Package java.lang.ref

Class Summary

PhantomReference	Phantom reference objects, for use in scheduling pre-mortem cleanup actions.
Reference	The Reference class contains the core abstractions for reference objects.
ReferenceQueue	Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.
SoftReference	Soft reference objects, which are cleared at the discretion of the garbage collector in order to release memory for reclamation.
WeakReference	Weak reference objects, for use in implementing canonicalizing mappings.

Package java.lang.ref Description

Provides reference object classes, which allow a program to interact with the garbage collector. Using reference objects, a program may maintain a reference to an object that does not prevent the object from being considered for reclamation by the garbage collector. A program may also arrange to be notified some time after the collector has determined that an object has become eligible for reclamation.