org.tbee.cache.simple
Class LeastRecentlyUsedCache<K,V>

java.lang.Object
  org.tbee.cache.simple.LeastRecentlyUsedCache<K,V>

All Implemented Interfaces:

Map<K,V>, Cache<K,V>

public class LeastRecentlyUsedCache<K,V>
extends Object
implements Cache<K,V>

This cache has a maximum number of items it remembers. They may be clean out by the garbage collecter. If the cache is full and a new items is added, the least recently used item is remove from the cache to make room for the new item.

Version:

$Revision: 1.4 $

Author:

$Author: tom $

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Field Summary

static char	MODE_SOFT
static char	MODE_STRONG
static char	MODE_WEAK
static String	SOURCECODE_VERSION Standard variable for determining version of a class file.

Constructor Summary

LeastRecentlyUsedCache()
This constructor uses a cache size specified in as a system property, or a default value (10) if the property is not present.

LeastRecentlyUsedCache(char pMode)
This constructor uses a cache size specified in as a system property, or a default value (10) if the property is not present.

LeastRecentlyUsedCache(char pMode, int pSize)

LeastRecentlyUsedCache(int pSize)

Method Summary

void	addAssociation(Object association)
void	addCacheListener(CacheListener pCacheListener) A cache listener listens to both finalize and remove events
void	clear()
Object	clone()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
Vector	getAssociations()
String	getName()
boolean	isEmpty()
Set	keySet()
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> t)
V	remove(Object key)
void	removeCacheListener(CacheListener pCacheListener)
void	removeValue(Object value)
void	setName(String pName)
int	size()
String	toString()
Collection	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.tbee.cache.simple.Cache

addAssociation, getName, setName

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

SOURCECODE_VERSION

public static final String SOURCECODE_VERSION

Standard variable for determining version of a class file.

See Also:

Constant Field Values

MODE_STRONG

public static char MODE_STRONG

MODE_SOFT

public static char MODE_SOFT

MODE_WEAK

public static char MODE_WEAK

Constructor Detail

LeastRecentlyUsedCache

public LeastRecentlyUsedCache()

This constructor uses a cache size specified in as a system property, or a default value (10) if the property is not present.

LeastRecentlyUsedCache

public LeastRecentlyUsedCache(char pMode)

This constructor uses a cache size specified in as a system property, or a default value (10) if the property is not present.

LeastRecentlyUsedCache

public LeastRecentlyUsedCache(char pMode,
                              int pSize)

LeastRecentlyUsedCache

public LeastRecentlyUsedCache(int pSize)

Method Detail

addCacheListener

public void addCacheListener(CacheListener pCacheListener)

A cache listener listens to both finalize and remove events

Specified by:

addCacheListener in interface Cache<K,V>

removeCacheListener

public void removeCacheListener(CacheListener pCacheListener)

Specified by:

removeCacheListener in interface Cache<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

clone

public Object clone()

Overrides:

clone in class Object

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

keySet

public Set keySet()

Specified by:

keySet in interface Map<K,V>

put

public V put(K key,
             V value)

Specified by:

put in interface Map<K,V>

putAll

public void putAll(Map<? extends K,? extends V> t)

Specified by:

putAll in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

removeValue

public void removeValue(Object value)

Specified by:

removeValue in interface Cache<K,V>

size

public int size()

Specified by:

size in interface Map<K,V>

toString

public String toString()

Overrides:

toString in class Object

values

public Collection values()

Specified by:

values in interface Map<K,V>

addAssociation

public void addAssociation(Object association)

getAssociations

public Vector getAssociations()

getName

public String getName()

setName

public void setName(String pName)