org.jboss.ejb.plugins
Class EntityMultiInstanceSynchronizationInterceptor

java.lang.Object
  |
  +--org.jboss.ejb.plugins.AbstractInterceptor
        |
        +--org.jboss.ejb.plugins.EntitySynchronizationInterceptor
              |
              +--org.jboss.ejb.plugins.EntityMultiInstanceSynchronizationInterceptor

All Implemented Interfaces:

ContainerPlugin, Interceptor, Service

public class EntityMultiInstanceSynchronizationInterceptor

extends EntitySynchronizationInterceptor

The role of this interceptor is to synchronize the state of the cache with the underlying storage. It does this with the ejbLoad and ejbStore semantics of the EJB specification. In the presence of a transaction this is triggered by transaction demarcation. It registers a callback with the underlying transaction monitor through the JTA interfaces. If there is no transaction the policy is to store state upon returning from invocation. The synchronization polices A,B,C of the specification are taken care of here.

WARNING: critical code, get approval from senior developers before changing.

Version:

$Revision: 1.1.4.4 $

Revisions:

2001/08/08: billb

1. Initial revision

Author:

Bill Burke

Inner Class Summary

protected class

EntityMultiInstanceSynchronizationInterceptor.MultiInstanceSynchronization

Inner classes inherited from class org.jboss.ejb.plugins.EntitySynchronizationInterceptor

EntitySynchronizationInterceptor.InstanceSynchronization

Fields inherited from class org.jboss.ejb.plugins.EntitySynchronizationInterceptor

commitOption, container, optionDRefreshRate, validContexts

Fields inherited from class org.jboss.ejb.plugins.AbstractInterceptor

log, nextInterceptor

Constructor Summary

EntityMultiInstanceSynchronizationInterceptor()

Method Summary

protected javax.transaction.Synchronization	createSynchronization(javax.transaction.Transaction tx, EntityEnterpriseContext ctx)
void	init()

Methods inherited from class org.jboss.ejb.plugins.EntitySynchronizationInterceptor

clearContextTx, getContainer, invoke, invokeHome, register, setContainer

Methods inherited from class org.jboss.ejb.plugins.AbstractInterceptor

destroy, getNext, setNext, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityMultiInstanceSynchronizationInterceptor

public EntityMultiInstanceSynchronizationInterceptor()

Method Detail

init

public void init()
          throws java.lang.Exception

Overrides:

init in class EntitySynchronizationInterceptor

createSynchronization

protected javax.transaction.Synchronization createSynchronization(javax.transaction.Transaction tx,
                                                                  EntityEnterpriseContext ctx)

Overrides:

createSynchronization in class EntitySynchronizationInterceptor