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

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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.

Object getCacheData(Fqn fqn, Object key)


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 Exception

Evict a node form the underlying cache.

Parameters:: fqn - Node corresponds to this fqn.
Throws:: Exception

getChildrenNames

public 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 Object getCacheData(Fqn fqn,
                           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.