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BaseEvictionPolicy (JBossCache API) - JBoss 4.0.1 sp1 Cache API Documentation 英文版文档

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org.jboss.cache.eviction
Class BaseEvictionPolicy

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

All Implemented Interfaces:

EvictionPolicy

Direct Known Subclasses:

LRUPolicy

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public class BaseEvictionPolicy

extends Object

implements EvictionPolicy

Base class implementation of EvictionPolicy.

Author:

Ben Wang 2-2004

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Field Summary
protected  TreeCache	cache_
protected  RegionManager	regionManager_

 

Constructor Summary

BaseEvictionPolicy()

 

Method Summary
void	configure(TreeCache cache)           Method called to configure this implementation.
void	evict(Fqn fqn)           Evict a node form the underlying cache.
Object	getCacheData(Fqn fqn, Object key)
Set	getChildrenNames(Fqn fqn)           Return children names as Objects
Region[]	getRegions()           EvictionPolicy interface implementation
int	getWakeupIntervalSeconds()           return eviction thread (if any) wake up interval in seconds.
boolean	hasChild(Fqn fqn)           Is this a leaf node?

 

Methods inherited from class java.lang.Object

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

 

Field Detail

regionManager_

protected RegionManager regionManager_

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cache_

protected TreeCache cache_

Constructor Detail

BaseEvictionPolicy

public BaseEvictionPolicy()

Method Detail

getRegions

public Region[] getRegions()

EvictionPolicy interface implementation

Specified by:

getRegions in interface EvictionPolicy

Returns:

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evict

public void evict(Fqn fqn)
           throws Exception

Description copied from interface: EvictionPolicy

Evict a node form the underlying cache.

Specified by:

evict in interface EvictionPolicy

Parameters:

fqn - Node corresponds to this fqn.

Throws:

Exception

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getChildrenNames

public Set getChildrenNames(Fqn fqn)

Description copied from interface: EvictionPolicy

Return children names as Objects

Specified by:

getChildrenNames in interface EvictionPolicy

Parameters:

fqn -

Returns:

Set of children name as Objects

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hasChild

public boolean hasChild(Fqn fqn)

Description copied from interface: EvictionPolicy

Is this a leaf node?

Specified by:

hasChild in interface EvictionPolicy

Parameters:

fqn -

Returns:

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getCacheData

public Object getCacheData(Fqn fqn,
                           Object key)

Specified by:

getCacheData in interface EvictionPolicy

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getWakeupIntervalSeconds

public int getWakeupIntervalSeconds()

Description copied from interface: EvictionPolicy

return eviction thread (if any) wake up interval in seconds.

Specified by:

getWakeupIntervalSeconds in interface EvictionPolicy

Returns:

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configure

public void configure(TreeCache cache)

Description copied from interface: EvictionPolicy

Method called to configure this implementation.

Specified by:

configure in interface EvictionPolicy

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