7.28. JBPM Deployment

Table 7.10. JBPM Deployment

Property Description
jbpm.esb/META-INF
This directory contains the deployment.xml and jboss-esb.xml files.
deployment.xml
Specifies the two resource files the ESB archive depends on: the jbossesb.esb and the JbpmDS data source files. The information in these files is used to determine the order of deployment: 
<jbossesb-deployment>
  <depends>jboss.esb:deployment=jbossesb.esb</depends>
  <depends>jboss.jca:service=DataSourceBinding,name=JbpmDS</depends>
</jbossesb-deployment>
jboss-esb.xml
This file deploys an internal service called JBpmCallbackService: 
<services>
  <service category="JBossESB-Internal" name="JBpmCallbackService"
    description="Service which makes Callbacks into jBPM">
    <listeners>
      <jms-listener name="JMS-DCQListener" 
        busidref="jBPMCallbackBus" maxThreads="1" />
    </listeners>
    <actions mep="OneWay">
      <action name="action" 
        class="org.jboss.soa.esb.services.jbpm.actions.JBpmCallback"/>
    </actions>
  </service>
</services>
This internal service listens to the jBPMCallbackBus, which, by default, is set to be either JBossMQ (via the jbmq-queue-service.xml file) or JBossMessaging (via the jbm-queue-service.xml file.) The latter is a messaging provider for the Java Message Service Queue. Ensure that only one of these files is deployed in the jbpm.esb archive.