org.jboss.cache.eviction
Class LRUPolicy

java.lang.Object
  org.jboss.cache.eviction.BaseEvictionPolicy
      org.jboss.cache.eviction.LRUPolicy

All Implemented Interfaces:

EvictionPolicy

Direct Known Subclasses:

AopLRUPolicy

public class LRUPolicy
extends BaseEvictionPolicy
implements EvictionPolicy

Provider to provide eviction policy. This one is based on LRU algorithm that a user can specify either maximum number of nodes or the idle time of a node to be evicted.

Version:

$Revision: 1.9 $

Author:

Ben Wang 02-2004, Daniel Huang - dhuang@jboss.org

Field Summary

protected RegionManager

regionManager_

Fields inherited from class org.jboss.cache.eviction.BaseEvictionPolicy

cache_

Constructor Summary

LRUPolicy()

Method Summary

void	configure(TreeCache cache) Method called to configure this implementation.
EvictionAlgorithm	getEvictionAlgorithm() Get the associated EvictionAlgorithm used by the EvictionPolicy.
java.lang.Class	getEvictionConfigurationClass() The EvictionConfiguration implementation class used by this EvictionPolicy.

Methods inherited from class org.jboss.cache.eviction.BaseEvictionPolicy

canIgnoreEvent, evict, getCacheData, getChildrenNames, hasChild

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jboss.cache.eviction.EvictionPolicy

canIgnoreEvent, evict, getCacheData, getChildrenNames, hasChild

Field Detail

regionManager_

protected RegionManager regionManager_

Constructor Detail

LRUPolicy

public LRUPolicy()

Method Detail

getEvictionAlgorithm

public EvictionAlgorithm getEvictionAlgorithm()

Description copied from interface: EvictionPolicy

Get the associated EvictionAlgorithm used by the EvictionPolicy.

This relationship should be 1-1.

Specified by:

getEvictionAlgorithm in interface EvictionPolicy

Returns:

An EvictionAlgorithm implementation.

getEvictionConfigurationClass

public java.lang.Class getEvictionConfigurationClass()

Description copied from interface: EvictionPolicy

The EvictionConfiguration implementation class used by this EvictionPolicy.

Specified by:

getEvictionConfigurationClass in interface EvictionPolicy

Returns:

EvictionConfiguration implementation class.

configure

public void configure(TreeCache cache)

Description copied from interface: EvictionPolicy

Method called to configure this implementation.

Specified by:

configure in interface EvictionPolicy

Overrides:

configure in class BaseEvictionPolicy