Message Listeners - JCA 1.5 message driven beans

Message Listeners are deployed as MDBs and linked to the ResourceAdapter that uses MessageInflow

to provide messages to the Message Listener.

ejb-jar.xml

<message-driven>
   <display-name>MessageBean</display-name>
   <ejb-name>MessageEJB</ejb-name>
   <ejb-class>mdb.MessageBean</ejb-class>
   <messaging-type>javax.jms.MessageListener</messaging-type>
   <transaction-type>Container</transaction-type>
   <message-destination-type>javax.jms.Queue</message-destination-type>
   <message-destination-link>LogicalQueue</message-destination-link>
   <activation-config>
      <activation-config-property>
         <activation-config-property-name>destinationType</activation-config-property-name>
         <activation-config-property-value>javax.jms.Queue</activation-config-property-value>
      </activation-config-property>
     <activation-config-property>
         <activation-config-property-name>destination</activation-config-property-name>
         <activation-config-property-value>queue/testQueue</activation-config-property-value>
      </activation-config-property>
   </activation-config>
</message-driven> 

The key elements are:

• messaging-type - identifies the <message-listener> from the ra.xml

• activiation-config - used to construct an ActivationSpec that is passed to the ResourceAdapter to activate delivery

jboss.xml

<message-driven>
   <ejb-name>MessageEJB</ejb-name>
   <resource-adapter-name>jms-ra.rar</resource-adapter-name>
</message-driven> 

• activiation-config - used to construct an ActivationSpec that is passed to the ResourceAdapter to activate delivery

• resource-adapter-name - identifies the RAR deployment containing the MessageListener definition

Activation Config Properties

Activation config properties are located in the following order:

1. the message-driven element in jboss.xml

2. the message-driven element ejb-jar.xml

3. the invoker-proxy-binding/proxy-factory-config element in either jboss.xml or standardjboss.xml

Related:

• JBoss's generic jms inbound resource adapter