9.2.2. Enabling Ordering Group on Connection Factory

To enable the ordering group feature on a connection factory, add the following attributes to the factory service configuration file:
EnableOrderingGroup
enables the ordering group feature if set to true (the default value is false).
DefaultOrderingGroupName
sets the default name of the message ordering group. The group name is generated automatically if the attribute is not defined.

Note

Once configured to enable the ordering group feature on a connection factory, all messages that are sent from any producers created from the connection factory become ordering group messages.
The following factory service configuration file sample demonstrates how to enable the ordering group feature: 
<mbean code="org.jboss.jms.server.connectionfactory.ConnectionFactory";
  name="jboss.messaging.connectionfactory:service=ConnectionFactory";
  xmbean-dd="xmdesc/ConnectionFactory-xmbean.xml">
  <depends optional-attribute-name="ServerPeer">
    jboss.messaging:service=ServerPeer
  </depends>
  <depends optional-attribute-name="Connector">
    jboss.messaging:service=Connector,transport=bisocket
  </depends>
  <depends>
    jboss.messaging:service=PostOffice
  </depends>

  <attribute name="JNDIBindings">
    <bindings>
    <binding>/MyConnectionFactory</binding>
    <binding>/XAConnectionFactory</binding>
    <binding>java:/MyConnectionFactory</binding>
    <binding>java:/XAConnectionFactory</binding>
    </bindings>
  </attribute>
    
  <!-- The two OrderingGroup properties -->
  <attribute name="EnableOrderingGroup">true</attribute>
  <attribute name="DefaultOrderingGroupName">MyOrderingGroup</attribute>
</mbean>
The advantage of enabling the ordering group feature by making configuration changes is the ease with which message ordering functionality can be achieved without the need for code changes.