com.sun.ejb.containers.util.cache
Class UnboundedEJBObjectCache

java.lang.Object
  com.sun.ejb.containers.util.cache.BaseCache
      com.sun.ejb.containers.util.cache.UnboundedEJBObjectCache

All Implemented Interfaces:

Cache, EJBObjectCache

public class UnboundedEJBObjectCache
extends BaseCache
implements EJBObjectCache

An EJB(Local)Object cache that does not impose any limit on the number of entries

Author:

Mahesh Kannan

Nested Class Summary

Nested classes/interfaces inherited from class com.sun.ejb.containers.util.cache.BaseCache

BaseCache.CacheItem

Field Summary

Fields inherited from class com.sun.ejb.containers.util.cache.BaseCache

_logger, _rb, addCount, addCountLk, bucketLocks, buckets, entryCount, entryCountLk, hitCount, hitCountLk, listeners, maxBuckets, missCount, missCountLk, overflowCount, overflowCountLk, refreshCount, refreshCountLk, refreshFlags, removalCount, removalCountLk, threshold

Constructor Summary

UnboundedEJBObjectCache(String name)
default constructor

UnboundedEJBObjectCache(String name, long timeout)
constructor with specified timeout

Method Summary

Object	get(Object key, boolean incrementRefCount)
Map	getStats() get the stats snapshot
void	init(int maxEntries, int numberOfVictimsToSelect, long timeout, float loadFactor, Properties props)
Object	put(Object key, Object value, boolean linkWithLru)
Object	remove(Object key, boolean decrementRefCount)
void	setEJBObjectCacheListener(EJBObjectCacheListener listener)
protected void	trimItem(BaseCache.CacheItem item) trim the item from the cache and notify listeners

Methods inherited from class com.sun.ejb.containers.util.cache.BaseCache

_put, _remove, _removeItem, add, add, addCacheListener, clear, clearStats, contains, createItem, decrementEntryCount, destroy, elements, eq, get, get, getAll, getEntryCount, getIndex, getIndex, getStatByName, handleOverflow, hash, incrementAddCount, incrementEntryCount, incrementHitCount, incrementMissCount, incrementOverflowCount, incrementRefreshCount, incrementRemovalCount, init, init, isEmpty, isThresholdReached, itemAccessed, itemAdded, itemRefreshed, itemRemoved, keys, loadValue, notifyRefresh, put, put, remove, remove, remove, removeAll, trimExpiredEntries, values, waitRefresh

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.sun.appserv.util.cache.Cache

add, add, addCacheListener, clear, clearStats, contains, destroy, elements, get, getAll, getEntryCount, getIndex, getStatByName, init, init, isEmpty, keys, notifyRefresh, put, put, remove, remove, removeAll, trimExpiredEntries, values, waitRefresh

Constructor Detail

UnboundedEJBObjectCache

public UnboundedEJBObjectCache(String name)

default constructor

UnboundedEJBObjectCache

public UnboundedEJBObjectCache(String name,
                               long timeout)

constructor with specified timeout

Method Detail

init

public void init(int maxEntries,
                 int numberOfVictimsToSelect,
                 long timeout,
                 float loadFactor,
                 Properties props)

Specified by:

init in interface EJBObjectCache

get

public Object get(Object key,
                  boolean incrementRefCount)

Specified by:

get in interface EJBObjectCache

put

public Object put(Object key,
                  Object value,
                  boolean linkWithLru)

Specified by:

put in interface EJBObjectCache

remove

public Object remove(Object key,
                     boolean decrementRefCount)

Specified by:

remove in interface EJBObjectCache

setEJBObjectCacheListener

public void setEJBObjectCacheListener(EJBObjectCacheListener listener)

Specified by:

setEJBObjectCacheListener in interface EJBObjectCache

trimItem

protected void trimItem(BaseCache.CacheItem item)

Description copied from class: BaseCache

trim the item from the cache and notify listeners

Overrides:

trimItem in class BaseCache

Parameters:

item - to be trimmed

getStats

public Map getStats()

Description copied from class: BaseCache

get the stats snapshot

Specified by:

getStats in interface Cache

Overrides:

getStats in class BaseCache

Returns:

a Map of stats See also: Constant.java for the keys