org.jboss.dashboard.database.cache.custom
Class LRUCache

java.lang.Object
  org.jboss.dashboard.database.cache.custom.LRUCache

All Implemented Interfaces:

ObjectCache, StatisticsObjectCache

public class LRUCache
extends Object
implements StatisticsObjectCache

Cache implementation that uses the Least Recently Used algorithm. This algorithm provides good cache hit frequency.

Nested Class Summary

class

LRUCache.ListeningLRUMap

Constructor Summary

LRUCache(boolean monitorizeCaches, int size)

Method Summary

Object	clear(Serializable key) Clears an object from the cache by key.
void	clearAll() Clears the entire cache.
Object	get(Serializable key) Gets an object from the cache by key, or returns null if that object is not cached.
CacheStatistics	getCacheStatistics() Get the cache statistics
String	getType() Gets the common name of the type of objects to cache.
void	put(Serializable key, Object object) Adds an object to the cache.
void	setListener(LRUCacheListener l)
void	setType(String type) Sets the common name of the type of objects to cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

LRUCache

public LRUCache(boolean monitorizeCaches,
                int size)

Method Detail

getType

public String getType()

Description copied from interface: ObjectCache

Gets the common name of the type of objects to cache.

Specified by:

getType in interface ObjectCache

setType

public void setType(String type)

Description copied from interface: ObjectCache

Sets the common name of the type of objects to cache.

Specified by:

setType in interface ObjectCache

put

public void put(Serializable key,
                Object object)

Description copied from interface: ObjectCache

Adds an object to the cache.

Specified by:

put in interface ObjectCache

get

public Object get(Serializable key)

Description copied from interface: ObjectCache

Gets an object from the cache by key, or returns null if that object is not cached.

Specified by:

get in interface ObjectCache

clear

public Object clear(Serializable key)

Description copied from interface: ObjectCache

Clears an object from the cache by key.

Specified by:

clear in interface ObjectCache

clearAll

public void clearAll()

Description copied from interface: ObjectCache

Clears the entire cache.

Specified by:

clearAll in interface ObjectCache

setListener

public void setListener(LRUCacheListener l)

getCacheStatistics

public CacheStatistics getCacheStatistics()

Description copied from interface: StatisticsObjectCache

Get the cache statistics

Specified by:

getCacheStatistics in interface StatisticsObjectCache

Returns:

the cache statistics