org.apache.batik.ext.awt.image.rendered
Class TileLRUMember

java.lang.Object
  |
  +--org.apache.batik.ext.awt.image.rendered.TileLRUMember

All Implemented Interfaces:

LRUCache.LRUObj

public class TileLRUMember

extends java.lang.Object

implements LRUCache.LRUObj

This is a useful class that wraps a Raster for patricipation in an LRU Cache. When this object drops out of the LRU cache it removes it's hard reference to the tile, but retains it's soft reference allowing for the recovery of the tile when the JVM is not under memory pressure

Field Summary

protected java.awt.image.Raster	hRaster
protected LRUCache.LRUNode	myNode
protected java.lang.ref.Reference	wRaster

Constructor Summary

TileLRUMember()

TileLRUMember(java.awt.image.Raster ras)

Method Summary

boolean	checkRaster()
LRUCache.LRUNode	lruGet() Called to get the LRU node for this object.
void	lruRemove() Called to inform the object that it is no longer in the cache.
void	lruSet(LRUCache.LRUNode nde) Called when the object first becomes active in the LRU cache.
java.awt.image.Raster	retrieveRaster()
void	setRaster(java.awt.image.Raster ras)

Methods inherited from class java.lang.Object

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

Field Detail

myNode

protected LRUCache.LRUNode myNode

wRaster

protected java.lang.ref.Reference wRaster

hRaster

protected java.awt.image.Raster hRaster

Constructor Detail

TileLRUMember

public TileLRUMember()

TileLRUMember

public TileLRUMember(java.awt.image.Raster ras)

Method Detail

setRaster

public void setRaster(java.awt.image.Raster ras)

checkRaster

public boolean checkRaster()

retrieveRaster

public java.awt.image.Raster retrieveRaster()

lruGet

public LRUCache.LRUNode lruGet()

Description copied from interface: LRUCache.LRUObj

Called to get the LRU node for this object. Should return the node passed in to lruSet.

Specified by:

lruGet in interface LRUCache.LRUObj

lruSet

public void lruSet(LRUCache.LRUNode nde)

Description copied from interface: LRUCache.LRUObj

Called when the object first becomes active in the LRU cache.

Specified by:

lruSet in interface LRUCache.LRUObj

Following copied from interface: org.apache.batik.ext.awt.image.rendered.LRUCache.LRUObj

Parameters:

nde - The LRU cache node associated with this object. should be remembered so it can be returned by lruGet.

lruRemove

public void lruRemove()

Description copied from interface: LRUCache.LRUObj

Called to inform the object that it is no longer in the cache.

Specified by:

lruRemove in interface LRUCache.LRUObj