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Configuring jBPM in Seam

Seam's jBPM integration is not installed by default, so you'll need to enable jBPM by installing a built-in component. You'll also need to explicitly list your process and pageflow definitions. In components.xml:
<core:jbpm>
    <core:pageflow-definitions>
        <value>createDocument.jpdl.xml</value>
        <value>editDocument.jpdl.xml</value>
        <value>approveDocument.jpdl.xml</value>
    </core:pageflow-definitions>
    <core:process-definitions>
        <value>documentLifecycle.jpdl.xml</value>
    </core:process-definitions>
</core:jbpm>
No further special configuration is needed if you only have pageflows. If you do have business process definitions, you need to provide a jBPM configuration, and a Hibernate configuration for jBPM. The Seam DVD Store demo includes example jbpm.cfg.xml and hibernate.cfg.xml files that will work with Seam:
<jbpm-configuration>

  <jbpm-context>
    <service name="persistence">
       <factory>
          <bean class="org.jbpm.persistence.db.DbPersistenceServiceFactory">
             <field name="isTransactionEnabled"><false/></field>
          </bean>
       </factory>
    </service>
    <service name="message" factory="org.jbpm.msg.db.DbMessageServiceFactory" />
    <service name="scheduler" factory="org.jbpm.scheduler.db.DbSchedulerServiceFactory" />
    <service name="logging" factory="org.jbpm.logging.db.DbLoggingServiceFactory" />
    <service name="authentication" 
       factory="org.jbpm.security.authentication.DefaultAuthenticationServiceFactory" />
  </jbpm-context>

</jbpm-configuration>
The most important thing to notice here is that jBPM transaction control is disabled. Seam or EJB3 should control the JTA transactions.

Packaging

There is not yet any well-defined packaging format for jBPM configuration and process/pageflow definition files. In the Seam examples we've decided to simply package all these files into the root of the EAR. In future, we will probably design some other standard packaging format. So the EAR looks something like this:
my-application.ear/
    jboss-seam.jar
    el-api.jar
    el-ri.jar
    jbpm-3.1.jar
    META-INF/
        MANIFEST.MF
        application.xml
    my-application.war/
        META-INF/
            MANIFEST.MF
        WEB-INF/
            web.xml
            components.xml
            faces-config.xml
            lib/
                jsf-facelets.jar
                jboss-seam-ui.jar
        login.jsp
        register.jsp
        ...
    my-application.jar/
        META-INF/
            MANIFEST.MF
            persistence.xml
        seam.properties
        org/
            jboss/
                myapplication/
                    User.class
                    Login.class
                    LoginBean.class
                    Register.class
                    RegisterBean.class
                    ...
    jbpm.cfg.xml
    hibernate.cfg.xml
    createDocument.jpdl.xml
    editDocument.jpdl.xml
    approveDocument.jpdl.xml
    documentLifecycle.jpdl.xml
Remember to add jbpm-3.1.jar to the manifest of your EJB-JAR and WAR.

 
 
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