Class TileLRUMember
- java.lang.Object
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- org.apache.batik.ext.awt.image.rendered.TileLRUMember
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- 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
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Field Summary
Fields Modifier and Type Field Description protected java.awt.image.Raster
hRaster
protected LRUCache.LRUNode
myNode
protected java.lang.ref.Reference
wRaster
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Constructor Summary
Constructors Constructor Description TileLRUMember()
TileLRUMember(java.awt.image.Raster ras)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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)
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Field Detail
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myNode
protected LRUCache.LRUNode myNode
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wRaster
protected java.lang.ref.Reference wRaster
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hRaster
protected java.awt.image.Raster hRaster
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Method Detail
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setRaster
public void setRaster(java.awt.image.Raster ras)
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checkRaster
public boolean checkRaster()
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retrieveRaster
public java.awt.image.Raster retrieveRaster()
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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 interfaceLRUCache.LRUObj
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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 interfaceLRUCache.LRUObj
- Parameters:
nde
- The LRU cache node associated with this object. should be remembered so it can be returned bylruGet
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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 interfaceLRUCache.LRUObj
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