org.jboss.cache.interceptors
Class PassivationInterceptor

java.lang.Object
  org.jboss.cache.interceptors.Interceptor
      org.jboss.cache.interceptors.PassivationInterceptor

All Implemented Interfaces:

InterceptorMBean, PassivationInterceptorMBean

public class PassivationInterceptor
extends Interceptor
implements PassivationInterceptorMBean

Writes evicted nodes back to the store on the way in through the CacheLoader, either before each method call (no TXs), or at TX commit.

Version:

$Id: PassivationInterceptor.java 4138 2007-07-13 14:31:42Z msurtani $

Author:

{Hany Mesha}

Field Summary

protected CacheLoader

loader

Fields inherited from class org.jboss.cache.interceptors.Interceptor

cache, configuration, last, log, next

Constructor Summary

PassivationInterceptor()

Method Summary

Map<String,Object>	dumpStatistics() This implementation returns an empty Map.
long	getPassivations() Returns the number of cache node passivations
Object	invoke(InvocationContext ctx) Notifies the cache instance listeners that the evicted node is about to be passivated and stores the evicted node and its attributes back to the store using the CacheLoader.
void	resetStatistics() This implementation is a no-op.
void	setCache(CacheSPI cache)

Methods inherited from class org.jboss.cache.interceptors.Interceptor

getLast, getNext, getStatisticsEnabled, isActive, isOnePhaseCommitPrepareMehod, isPreparing, isValid, setLast, setNext, setStatisticsEnabled, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jboss.cache.interceptors.InterceptorMBean

getStatisticsEnabled, setStatisticsEnabled

Field Detail

loader

protected CacheLoader loader

Constructor Detail

PassivationInterceptor

public PassivationInterceptor()

Method Detail

setCache

public void setCache(CacheSPI cache)

Overrides:

setCache in class Interceptor

invoke

public Object invoke(InvocationContext ctx)
              throws Throwable

Notifies the cache instance listeners that the evicted node is about to be passivated and stores the evicted node and its attributes back to the store using the CacheLoader.

Overrides:

invoke in class Interceptor

Returns:

Throws:

Throwable

getPassivations

public long getPassivations()

Description copied from interface: PassivationInterceptorMBean

Returns the number of cache node passivations

Specified by:

getPassivations in interface PassivationInterceptorMBean

Returns:

the number of cache node passivations

resetStatistics

public void resetStatistics()

Description copied from class: Interceptor

This implementation is a no-op. If individual Interceptors wish to expose statistics, they can override this method.

Specified by:

resetStatistics in interface InterceptorMBean

Overrides:

resetStatistics in class Interceptor

dumpStatistics

public Map<String,Object> dumpStatistics()

Description copied from class: Interceptor

This implementation returns an empty Map. If individual Interceptors wish to expose statistics, they can override this method.

Specified by:

dumpStatistics in interface InterceptorMBean

Overrides:

dumpStatistics in class Interceptor

Returns:

a map containing statistics