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,v 1.17 2006/03/15 16:02:38 genman Exp $

Author:

{Hany Mesha}

Field Summary

protected CacheLoader

loader

Constructor Summary

PassivationInterceptor()

Method Summary

java.util.Map	dumpStatistics() Returns a map of the cache interceptor's statistics Map elements consist of {String name, Object value} entries
long	getPassivations() Returns the number of cache node passivations
java.lang.Object	invoke(org.jgroups.blocks.MethodCall m) 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() Resets an interceptor's cache statistics
void	setCache(TreeCache cache)

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

getInvocationContext, getNext, getStatisticsEnabled, isActive, isOnePhaseCommitPrepareMehod, isPreparing, isTransactionLifecycleMethod, isValid, setInvocationContext, setNext, setStatisticsEnabled

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.interceptors.InterceptorMBean

getStatisticsEnabled, setStatisticsEnabled

Field Detail

loader

protected CacheLoader loader

Constructor Detail

PassivationInterceptor

public PassivationInterceptor()

Method Detail

setCache

public void setCache(TreeCache cache)

Overrides:

setCache in class Interceptor

invoke

public java.lang.Object invoke(org.jgroups.blocks.MethodCall m)
                        throws java.lang.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. In case of a transaction, register for TX completion (2PC) and at TX commit, The evicted node write made under the given TX to the CacheLoader.

Overrides:

invoke in class Interceptor

Parameters:

m -

Returns:

Throws:

java.lang.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 interface: InterceptorMBean

Resets an interceptor's cache statistics

Specified by:

resetStatistics in interface InterceptorMBean

Overrides:

resetStatistics in class Interceptor

dumpStatistics

public java.util.Map dumpStatistics()

Description copied from interface: InterceptorMBean

Returns a map of the cache interceptor's statistics Map elements consist of {String name, Object value} entries

Specified by:

dumpStatistics in interface InterceptorMBean

Overrides:

dumpStatistics in class Interceptor

Returns:

a map containing statistics