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Here are the options for an MDB Container and the related Resource Adapter:

openejb.xml
<openejb>
  <Container id="MyMDBContainer" type="MESSAGE">
    # The resource adapter delivers messages to the container
    ResourceAdapter MyActiveMQResourceAdapter

    # Specifies the message listener interface handled by this container
    MessageListenerInterface javax.jms.MessageListener

    # Specifies the activation spec class
    ActivationSpecClass org.apache.activemq.ra.ActiveMQActivationSpec

    # Specifies the maximum number of bean instances that are
    # allowed to exist for each MDB deployment.
    InstanceLimit 10
  </Container>

  <Resource id="MyActiveMQResourceAdapter" provider="Default JMS Resource Adapter">
    # Broker configuration URI as defined by ActiveMQ
    # see http://activemq.apache.org/broker-configuration-uri.html
    BrokerXmlConfig broker:(tcp://localhost:61616)?useJmx=false

    # Broker address
    ServerUrl vm://localhost?async=true

    # Specifies the size of the thread pool available to AciveMQ.
    ThreadPoolSize 30
  </Resource>
</openejb>

Note on BrokerConfigXml

See Broker Configuration URI for the full list of URI syntax and options.

Support for the "broker:" and "properties:" URI syntaxes should work out of the box. For the "xbean:" option you'll need to add spring, xbean-spring and possibly a few other libraries to the libs/ dir (or your classpath if we are embedded) – all of which will be available from an activemq 4.1.1 distro.

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