org.jboss.cache.eviction
Interface EvictionPolicy

All Known Implementing Classes:

BaseEvictionPolicy

public interface EvictionPolicy

Generic eviction policy interface.

Author:

Ben Wang 2-2004

Method Summary

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

Method Detail

getRegions

public Region[] getRegions()

Return all regions declared.

Returns:

evict

public void evict(Fqn fqn)
           throws java.lang.Exception

Evict a node form the underlying cache.

Parameters:

fqn - DataNode corresponds to this fqn.

Throws:

java.lang.Exception

getChildrenNames

public java.util.Set getChildrenNames(Fqn fqn)

Return children names as Objects

Parameters:

fqn -

Returns:

hasChild

public boolean hasChild(Fqn fqn)

Is this a leaf node?

Parameters:

fqn -

Returns:

getCacheData

public java.lang.Object getCacheData(Fqn fqn,
                                     java.lang.Object key)

getWakeupIntervalSeconds

public int getWakeupIntervalSeconds()

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

Returns:

configure

public void configure(TreeCache cache)

Method called to configure this implementation.