org.apache.commons.jcs.engine

Class ZombieCacheService<K,V>

java.lang.Object

org.apache.commons.jcs.engine.ZombieCacheService<K,V>

All Implemented Interfaces:

ICacheService<K,V>, IZombie

Direct Known Subclasses:

ZombieCacheServiceNonLocal

public class ZombieCacheService<K,V>
extends Object
implements ICacheService<K,V>, IZombie

Zombie adapter for any cache service. Balks at every call.

Constructor Summary

Constructors

Constructor and Description
ZombieCacheService()

Method Summary

Modifier and Type	Method and Description
void	dispose(String cacheName) Frees the specified cache.
ICacheElement<K,V>	get(String cacheName, K key) Returns a cache bean from the specified cache; or null if the key does not exist.
Serializable	get(String cacheName, K key, boolean container) Logs the get to debug, but always balks.
Map<K,ICacheElement<K,V>>	getMatching(String cacheName, String pattern) Returns an empty map.
Map<K,ICacheElement<K,V>>	getMultiple(String cacheName, Set<K> keys) Returns an empty map.
void	put(ICacheElement<K,V> item)
void	release() Frees all caches.
void	remove(String cacheName, K key) Removes the given key from the specified cache.
void	removeAll(String cacheName) Remove all keys from the specified cache.
void	update(ICacheElement<K,V> item) Does nothing.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZombieCacheService

public ZombieCacheService()

Method Detail

put

public void put(ICacheElement<K,V> item)

Parameters:

item -

update

public void update(ICacheElement<K,V> item)

Does nothing.

Specified by:

update in interface ICacheService<K,V>

Parameters:

item -

get

public ICacheElement<K,V> get(String cacheName,
                              K key)

Description copied from interface: ICacheService

Returns a cache bean from the specified cache; or null if the key does not exist.

Specified by:

get in interface ICacheService<K,V>

Parameters:

cacheName -

key -

Returns:

null. zombies have no internal data

getMultiple

public Map<K,ICacheElement<K,V>> getMultiple(String cacheName,
                                             Set<K> keys)

Returns an empty map. Zombies have no internal data.

Specified by:

getMultiple in interface ICacheService<K,V>

Parameters:

cacheName -

keys -

Returns:

Collections.EMPTY_MAP

getMatching

public Map<K,ICacheElement<K,V>> getMatching(String cacheName,
                                             String pattern)

Returns an empty map. Zombies have no internal data.

Specified by:

getMatching in interface ICacheService<K,V>

Parameters:

cacheName -

pattern -

Returns:

Collections.EMPTY_MAP

get

public Serializable get(String cacheName,
                        K key,
                        boolean container)

Logs the get to debug, but always balks.

Parameters:

cacheName -

key -

container -

Returns:

null always

remove

public void remove(String cacheName,
                   K key)

Description copied from interface: ICacheService

Removes the given key from the specified cache.

Specified by:

remove in interface ICacheService<K,V>

Parameters:

cacheName -

key -

removeAll

public void removeAll(String cacheName)

Description copied from interface: ICacheService

Remove all keys from the specified cache.

Specified by:

removeAll in interface ICacheService<K,V>

Parameters:

cacheName -

dispose

public void dispose(String cacheName)

Description copied from interface: ICacheService

Frees the specified cache.

Specified by:

dispose in interface ICacheService<K,V>

Parameters:

cacheName -

release

public void release()

Frees all caches.

Specified by:

release in interface ICacheService<K,V>