[jboss-dev-forums] [Design of Messaging on JBoss (Messaging/JBoss)] - Changes in our JCA Adapter

[clebert.suconic@jboss.com]

There are two ways of configuring our JCA Adapter:

On MDBs (Inbound), there are Activation properties on the MDBs:
  | 
  | @MessageDriven(name = "MessageMDBExample", activationConfig = { @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
  |                                                                @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/testQueue"),
  |                                                                @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),
  |   
  | })
  | public class MDBExample implements MessageListener


All of this is just passed straight to the Resource-adapter. EJB3 doesn't know anything about this. So, if we have any complains about how this is configured it's going to be our fault.


As a way of allowing the user to connect the MDB to a remote server, I'm adding two activation properties there:

Example:


  | ...
  | @ActivationConfigProperty(propertyName = "TransportType", propertyValue = "org.jboss.messaging.integration.transports.netty.NettyConnector"),
  | @ActivationConfigProperty(propertyName = "TransportConfiguration", propertyValue = "jbm.remoting.netty.port=9945")
  | ...
  | 





Simarly, the outbound connection definition, has a similar way of configuring it:



This is how our current jms-ds.xml looks like ATM:


  |    <tx-connection-factory>
  |       <jndi-name>JmsXA</jndi-name>
  |       <xa-transaction/>
  |       <rar-name>jms-ra.rar</rar-name>
  |       <connection-definition>org.jboss.messaging.ra.JBMConnectionFactory</connection-definition>
  |       <config-property name="SessionDefaultType" type="java.lang.String">javax.jms.Topic</config-property>
  |       <config-property name="JmsProviderAdapterJNDI" type="java.lang.String">java:/DefaultJMSProvider</config-property>
  |       <max-pool-size>20</max-pool-size>
  |       <security-domain-and-application>JmsXARealm</security-domain-and-application>
  |    </tx-connection-factory>
  | 


all the config-property you see here, are just passed straight to the resource adapter. All of these is under our domain.


Again, as a way of allowing the user to connect the Outbound connection to a remote server I'm similarly adding two config-properties here:


  | <tx-connection-factory>
  | ...
  |       <config-property name="TransportType" type="java.lang.String">org.jboss.messaging.integration.transports.netty.NettyConnector</config-property>
  |       <config-property name="TransportConfiguration" type="java.lang.String">jbm.remoting.netty.port=9945</config-property>
  | ...
  | 


The user will also have the option of changing the ra.xml or deploying multiple rars. There is a @ResourceAdapter tag it could be used on the MDB also, so if we have multiple adapters.. the user will have the option of choosing the adapter file name.



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