[jboss-jira] [JBoss JIRA] Commented: (JBAS-6013) Support createDestination in jboss/message-driven

[Adrian Brock (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBAS-6013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12435715#action_12435715 ] 

Adrian Brock commented on JBAS-6013:
------------------------------------

This has been done.
The deployer can be found in deployers/ejb-deployer-jboss-beans.xml
(although it relates to ejb3 as well).

The deployer works by acting as a registry for 
org.jboss.ejb.deployer.CreateDestination
beans that include a matcher and a factory.

The only current implementation is one that matches javax.jms.MessageListener and jms-ra.rar
(i.e. a jms mdb using our resource adapter) and then creates a JBossMessaging destination.

   <!-- Deployer for automatically creating message driven destinations -->
   <bean name="CreateDestinationDeployer" class="org.jboss.ejb.deployers.CreateDestinationDeployer">
      <incallback method="addCreateDestination"/>
      <uncallback method="addCreateDestination"/>
   </bean>

   <!-- Destination creator for JBoss Messaging -->
   <bean name="JBossMessageDestinationCreator" class="org.jboss.ejb.deployers.CreateDestination">
      <!-- We match any jms mdb that is going to be deployed using our rar -->
      <property name="matcher">
         <bean class="org.jboss.ejb.deployers.SimpleCreateDestinationMatcher">
            <property name="default">true</property>
            <property name="messageListener">javax.jms.MessageListener</property>
            <property name="rarName">jms-ra.rar</property>
         </bean>
      </property>
      <!-- Create a destination with JBoss Messaging -->
      <property name="factory">
         <bean class="org.jboss.jms.server.destination.JBossMessagingCreateDestinationFactory">
            <property name="serverPeerName">jboss.messaging:service=ServerPeer</property>
            <property name="postOfficeName">jboss.messaging:service=PostOffice</property>
         </bean>
      </property>
   </bean>

To enable the behaviour you need to add
<create-destination>true</create-destination>
on the <message-driven/> in your jboss.xml

Obviously anybody can add new CreateDestinations that do different things for
other rars or inbound types or the default matcher/factory can be changed 
to alter when/how JBoss Messaging destinations
are created.

> Support createDestination in jboss/message-driven
> -------------------------------------------------
>
>                 Key: JBAS-6013
>                 URL: https://jira.jboss.org/jira/browse/JBAS-6013
>             Project: JBoss Application Server
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: EJB2, EJB3
>            Reporter: Adrian Brock
>            Assignee: Adrian Brock
>             Fix For: JBossAS-5.0.0.GA
>
>
> In the old JMSContainerInvoker there was a flag called "createJBossMQDestination"
> which allowed the MDB to automatically create the JMS destination.
> This has is no longer supported with the reworking of the metadata and changes to the MDB container.
> To re-introduce this behaviour and resolve some of the issues we had with this feature (which lead
> to it being disabled by default), the behaviour should be made pluggable via a deployer instead.
> Issues this will resolve over the previous implementation:
> 1) The Destination will be removed at undeployment
> 2) The Destination construction method can be replaced by switiching the deployer, e.g. for different backend jms servers
> including understanding rar specific activation config properties
> 3) The behaviour is not necessarily JMS specific, e.g. other inbound adapters could create their own destinations
> The legacy "createJBossMQDestination" will still be checked when it exists.

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