<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<body link="#355491" alink="#4262a1" vlink="#355491" style="background: #e2e2e2; margin: 0; padding: 20px;">
<div>
<table cellpadding="0" bgcolor="#FFFFFF" border="0" cellspacing="0" style="border: 1px solid #dadada; margin-bottom: 30px; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td>
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" style="border: solid 2px #ccc; background: #dadada; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td bgcolor="#000000" valign="middle" height="58px" style="border-bottom: 1px solid #ccc; padding: 20px; -moz-border-radius-topleft: 3px; -moz-border-radius-topright: 3px; -webkit-border-top-right-radius: 5px; -webkit-border-top-left-radius: 5px;">
<h1 style="color: #333333; font: bold 22px Arial, Helvetica, sans-serif; margin: 0; display: block !important;">
<!-- To have a header image/logo replace the name below with your img tag -->
<!-- Email clients will render the images when the message is read so any image -->
<!-- must be made available on a public server, so that all recipients can load the image. -->
<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
</td>
</tr>
<tr>
<td bgcolor="#FFFFFF" style="font: normal 12px Arial, Helvetica, sans-serif; color:#333333; padding: 20px; -moz-border-radius-bottomleft: 4px; -moz-border-radius-bottomright: 4px; -webkit-border-bottom-right-radius: 5px; -webkit-border-bottom-left-radius: 5px;"><h3 style="margin: 10px 0 5px; font-size: 17px; font-weight: normal;">
Joining JBPM transaction with my current application's transaction
</h3>
<span style="margin-bottom: 10px;">
created by <a href="http://community.jboss.org/people/ossa">Zeliang Huang</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/640954#640954">View the full discussion</a>
</span>
<hr style="margin: 20px 0; border: none; background-color: #dadada; height: 1px;">
<div class="jive-rendered-content"><p>Hi Guys, </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am quite inexperienced with JTA & JPA. I am trying to join JBPM5.1 transaction with my current application's transaction. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In my current application, I had obtained the transaction using things like this: </p><p>building the sessionFactotry:</p><pre class="jive-pre"><code class="jive-code jive-java"><font color="darkgreen">//my current application uses the hibernate.cfg.xml </font>
Configuration config = <font color="navy"><b>new</b></font> Configuration().configure();
SessionFactory factory =  <font color="navy"><b>new</b></font> Configuration().configure().buildSessionFactory();
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Usering the session factory:</p><pre class="jive-pre"><code class="jive-code jive-java">factory.getCurrentSession().beginTransaction();
<font color="darkgreen">//do CRUD</font>
factory.getCurrentSession().commit();
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In the persistence.xml of jbpm-persistence-jpa-5.1.0.Final.jar I had put</p><pre class="jive-pre"><code class="jive-code jive-xml"><span class="jive-xml-tag"><?xml version="1.0" encoding="UTF-8" standalone="yes"?></span>
<span class="jive-xml-tag"><span><persistence version="1.0"
    xsi:schemaLocation="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span>
                                 </span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" target="_blank">http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd</a><span>
                                 </span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/orm" target="_blank">http://java.sun.com/xml/ns/persistence/orm</a><span> </span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/orm_1_0.xsd" target="_blank">http://java.sun.com/xml/ns/persistence/orm_1_0.xsd</a><span>"
    xmlns:orm="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/orm" target="_blank">http://java.sun.com/xml/ns/persistence/orm</a><span>" xmlns:xsi="</span><a class="jive-link-external-small" href="http://www.w3.org/2001/XMLSchema-instance" target="_blank">http://www.w3.org/2001/XMLSchema-instance</a><span>"
    xmlns="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span>"></span></span>
    <span class="jive-xml-tag"><persistence-unit name="org.jbpm.persistence.jpa"
        transaction-type="JTA"></span>
        <span class="jive-xml-tag"><provider></span>org.hibernate.ejb.HibernatePersistence<span class="jive-xml-tag"></provider></span>
        <span class="jive-xml-tag"><jta-data-source></span>same-datasource-as-my-current-applications<span class="jive-xml-tag"></jta-data-source></span>
        <span class="jive-xml-tag"><class></span>org.drools.persistence.info.SessionInfo<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.persistence.processinstance.ProcessInstanceInfo<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.drools.persistence.info.WorkItemInfo<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.process.audit.ProcessInstanceLog<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.process.audit.NodeInstanceLog<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.process.audit.VariableInstanceLog<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><properties></span>
            <span class="jive-xml-tag"><property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect" /></span>
            <span class="jive-xml-tag"><property name="hibernate.max_fetch_depth" value="3" /></span>
        <span class="jive-xml-comment"><!--     <span class="jive-xml-tag"><property name="hibernate.hbm2ddl.auto" value="update" /></span>  --></span>
            <span class="jive-xml-tag"><property name="hibernate.show_sql" value="false" /></span>
            <span class="jive-xml-tag"><property name="hibernate.transaction.manager_lookup_class"
                value="org.hibernate.transaction.WeblogicTransactionManagerLookup" /></span>
        <span class="jive-xml-tag"></properties></span>
    <span class="jive-xml-tag"></persistence-unit></span>
<span class="jive-xml-tag"></persistence></span>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In my JBPM StatefulKnowledgeSession creation, I had done something like this.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Environment env = KnowledgeBaseFactory.newEnvironment();</p><p>env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);</p><p>StatefulKnowledgeSession session = JPAKnowledgeService.newStatefulKnowledgeSession(knowledgebase, null, env);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am able to manage transactions of both side separately by doing something like:</p><pre class="jive-pre"><code class="jive-code jive-java"><font color="darkgreen">//commit to my application tables first</font>
factory.getCurrentSession().beginTransaction();
<font color="darkgreen">//do CRUD</font>
factory.getCurrentSession().commit();
 
<font color="darkgreen">//then commit to jbpm tables. </font>
UserTransaction ut = (UserTransaction) <font color="navy"><b>new</b></font> InitialContext().lookup(<font color="red">"java:comp/UserTransaction"</font>);
ut.begin();
....
ut.commit();
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This is working ok. But I prefer to combine the two transaction into one since they are supposed to be one work-unit.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I had trying for a week for to no avail. I am also quite confused with the fact that some hibernate apps are using hibernate.cfg.xml and some are using JPA specific persistence.xml . There are multiple copies of these XML files in different jars. I just couldn't get the whole picture of the thing. Any help is greately appreciated !</p></div>
<div style="background-color: #f4f4f4; padding: 10px; margin-top: 20px;">
<p style="margin: 0;">Reply to this message by <a href="http://community.jboss.org/message/640954#640954">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in jBPM at <a href="http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034">Community</a></p>
</div></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>