org.apache.ojb.broker.cache
Class ObjectCacheJCSPerClassImpl

java.lang.Object
  org.apache.ojb.broker.cache.AbstractMetaCache
      org.apache.ojb.broker.cache.ObjectCacheJCSPerClassImpl

All Implemented Interfaces:

ObjectCache

public class ObjectCacheJCSPerClassImpl
extends AbstractMetaCache

A global ObjectCache implementation using a JCS region for each class. Each class name was associated with a dedicated ObjectCacheJCSImpl instance to cache given objects. This allows to define JCS cache region configuration properties for each used class in JCS configuration files.
More info see turbine-JCS.

Implementation configuration properties:

Property Key	Property Values
-	-

Version:

$Id: ObjectCacheJCSPerClassImpl.java,v 1.1 2007-08-24 22:17:29 ewestfal Exp $

Author:

Matthew Baird (mattbaird@yahoo.com), Armin Waibel

Field Summary

private static Map

cachesByClass

Fields inherited from class org.apache.ojb.broker.cache.AbstractMetaCache

METHOD_CACHE, METHOD_LOOKUP, METHOD_REMOVE

Constructor Summary

ObjectCacheJCSPerClassImpl(PersistenceBroker broker, Properties prop)
Constructor for the MetaObjectCachePerClassImpl object

Method Summary

void	clear() Clears the cache
ObjectCache	getCache(Identity oid, Object obj, int methodCall) This method handle all calls against the ObjectCache interface.
private ObjectCache	getCachePerClass(Class objectClass, int methodCall) Gets the cache for the given class

Methods inherited from class org.apache.ojb.broker.cache.AbstractMetaCache

cache, cacheIfNew, lookup, remove

Methods inherited from class java.lang.Object

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

Field Detail

cachesByClass

private static Map cachesByClass

Constructor Detail

ObjectCacheJCSPerClassImpl

public ObjectCacheJCSPerClassImpl(PersistenceBroker broker,
                                  Properties prop)

Constructor for the MetaObjectCachePerClassImpl object

Method Detail

getCache

public ObjectCache getCache(Identity oid,
                            Object obj,
                            int methodCall)

Description copied from class: AbstractMetaCache

This method handle all calls against the ObjectCache interface. Note: The parameter obj can be null - e.g. when lookup or remove method was called.

Specified by:

getCache in class AbstractMetaCache

Parameters:

oid - Identity of the target object.

obj - The target object itself or null if not available.

methodCall - Specifies the type of method call against the ObjectCache interface. AbstractMetaCache.METHOD_CACHE, AbstractMetaCache.METHOD_LOOKUP, AbstractMetaCache.METHOD_REMOVE.

Returns:

The ObjectCache implementation.

clear

public void clear()

Clears the cache

getCachePerClass

private ObjectCache getCachePerClass(Class objectClass,
                                     int methodCall)

Gets the cache for the given class

Parameters:

objectClass - The class to look up the cache for

Returns:

The cache