Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Uses of Class java.lang.ref.Reference - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Java^TM 2 Platform
Standard Edition

PREV NEXT

FRAMES NO FRAMES

Uses of Class
java.lang.ref.Reference

Packages that use Reference
java.lang.ref	Provides reference-object classes, which support a limited degree of interaction with the garbage collector.

Uses of Reference in java.lang.ref

Subclasses of Reference in java.lang.ref

class PhantomReference
          Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.

class SoftReference
          Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.

class WeakReference
          Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.

Methods in java.lang.ref that return Reference

Reference ReferenceQueue.poll()
          Polls this queue to see if a reference object is available, returning one immediately if so.

Reference ReferenceQueue.remove(long timeout)
          Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires.

Reference ReferenceQueue.remove()
          Removes the next reference object in this queue, blocking until one becomes available.