com.sun.jini.collection

Class SoftCache

java.lang.Object

com.sun.jini.collection.SoftCache

public class SoftCache
extends Object

Map of keys to softly-referenced values which automatically removes mappings for garbage-collected values. This is a simplified version of sun.misc.SoftCache.

Since:

2.0

Author:

Sun Microsystems, Inc.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	SoftCache.Value

Field Summary

Fields

Modifier and Type	Field and Description
private Map	map
private ReferenceQueue	queue

Constructor Summary

Constructors

Constructor and Description
SoftCache()

Method Summary

Methods

Modifier and Type	Method and Description
void	clear() Removes all associations from this map.
Object	get(Object key) Returns value associated with given key, or null if none.
private void	processQueue()
Object	put(Object key, Object value) Associates value with given key, returning value previously associated with key, or null if none.
Object	remove(Object key) Removes association for given key, returning value previously associated with key, or null if none.

Methods inherited from class java.lang.Object

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

Field Detail

map

private final Map map

queue

private final ReferenceQueue queue

Constructor Detail

SoftCache

public SoftCache()

Method Detail

put

public Object put(Object key,
         Object value)

Associates value with given key, returning value previously associated with key, or null if none.

get

public Object get(Object key)

Returns value associated with given key, or null if none.

remove

public Object remove(Object key)

Removes association for given key, returning value previously associated with key, or null if none.

clear

public void clear()

Removes all associations from this map.

processQueue

private void processQueue()