EntityReentranceInterceptor (JBoss Server API) - JBoss 4.0.1 sp1 server API Documentation 英文版文档

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org.jboss.ejb.plugins
Class EntityReentranceInterceptor

java.lang.Object
  org.jboss.ejb.plugins.AbstractInterceptor
      org.jboss.ejb.plugins.EntityReentranceInterceptor

All Implemented Interfaces:: AllowedOperationsFlags, ContainerPlugin, Interceptor, org.jboss.system.Service

public class EntityReentranceInterceptor
extends AbstractInterceptor

The role of this interceptor is to check for reentrancy. Per the spec, throw an exception if instance is not marked as reentrant. We do not check to see if same Tx is accessing object at the same time as we assume that any transactional locks will handle this.

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

Version:: $Revision: 1.8 $
Author:: Bill Burke

Field Summary

protected boolean reentrant


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

container, log, nextInterceptor

Fields inherited from interface org.jboss.ejb.AllowedOperationsFlags

IN_AFTER_BEGIN, IN_AFTER_COMPLETION, IN_BEFORE_COMPLETION, IN_BUSINESS_METHOD, IN_EJB_ACTIVATE, IN_EJB_CREATE, IN_EJB_FIND, IN_EJB_HOME, IN_EJB_LOAD, IN_EJB_PASSIVATE, IN_EJB_POST_CREATE, IN_EJB_REMOVE, IN_EJB_STORE, IN_EJB_TIMEOUT, IN_INTERCEPTOR_METHOD, IN_SERVICE_ENDPOINT_METHOD, IN_SET_ENTITY_CONTEXT, IN_SET_MESSAGE_DRIVEN_CONTEXT, IN_SET_SESSION_CONTEXT, IN_UNSET_ENTITY_CONTEXT, NOT_ALLOWED

Constructor Summary

EntityReentranceInterceptor()


Method Summary

Object invoke(Invocation mi)
          ???

protected boolean isReentrantMethod(Invocation mi)


protected boolean isTxExpired(Transaction miTx)


void setContainer(Container container)
          This callback is set by the container so that the plugin may access it

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

create, destroy, getContainer, getNext, invokeHome, setNext, start, stop

Methods inherited from class java.lang.Object

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

Field Detail

reentrant

protected boolean reentrant

Constructor Detail

EntityReentranceInterceptor

public EntityReentranceInterceptor()

Method Detail

setContainer

public void setContainer(Container container)

Description copied from interface: ContainerPlugin

This callback is set by the container so that the plugin may access it

Specified by:: setContainer in interface ContainerPlugin
Overrides:: setContainer in class AbstractInterceptor

isTxExpired

protected boolean isTxExpired(Transaction miTx)
                       throws Exception

Throws:: Exception

invoke

public Object invoke(Invocation mi)
              throws Exception

Description copied from interface: Interceptor

???

Specified by:: invoke in interface Interceptor
Overrides:: invoke in class AbstractInterceptor

Throws:: Exception

isReentrantMethod

protected boolean isReentrantMethod(Invocation mi)