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Query task with variables
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reply from <a href="http://community.jboss.org/people/tvictor">Thomas Victor</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/544511#544511">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi <a class="jive-link-profile-small" href="http://community.jboss.org/people/rebody">HuiSheng Xu</a>,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thank you very much for replying to my post.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The way in which it works is described below.</p><p>I added the jbpm mappings to my persistence.xml. Please see the configuration below. So that my persistence unit contains the jbpm tables also. So I can use jbpm objects along with my domain objects in JPA.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The query is given below</p><p>entityManager.createQuery("SELECT new com.imagitek.prodagioap.workflow.invoice.InvoiceTask(task, invoice) from org.jbpm.api.task.Task task, org.jbpm.pvm.internal.type.Variable var, com.imagitek.prodagioap.entity.ImInvoice invoice  where var.execution=task.execution and invoice.id=var.l").getResultList();</p><p>This works because I know my variable will be a long data type.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>? Right now I have a separate jbpm.hibernate.cfg.xml which is supplied by jbpm4. I am using this configuration also. Ultimately I want to use only the JPA configuration for everything. I want to get rid of the jbpm.hibernate.cfg.xml file. While creating the process engine I was able to supply hibernateSessionFactory which is provided by jpa/seam to the process engine. Then I was able to get rid of the jbpm.hibernate.cfg.xml. but the problem was that no data was persisted to the database. But all the rules, events etc were getting fired. I assume I am missing some transaction related stuff. Can please tell me what are the things I need to do to persist the data. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks & Regards</p><p>Thomas Victor</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 style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><div id="_mcePaste">   <persistence-unit name="prodagioAP" transaction-type="JTA"></div><div id="_mcePaste">      <provider>org.hibernate.ejb.HibernatePersistence</provider></div><div id="_mcePaste">      <jta-data-source>java:/prodagioAPDatasource</jta-data-source></div><div id="_mcePaste">        <mapping-file>jbpm.repository.hbm.xml</mapping-file></div><div id="_mcePaste"><mapping-file>jbpm.execution.hbm.xml</mapping-file></div><div id="_mcePaste"><mapping-file>jbpm.history.hbm.xml</mapping-file></div><div id="_mcePaste"><mapping-file>jbpm.task.hbm.xml</mapping-file></div><div id="_mcePaste"><!-- <mapping-file>jbpm.identity.hbm.xml</mapping-file>--></div><div id="_mcePaste">      <properties></div><div id="_mcePaste">         <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/></div><div id="_mcePaste">         <property name="hibernate.hbm2ddl.auto" value="validate"/></div><div id="_mcePaste">         <property name="hibernate.show_sql" value="false"/></div><div id="_mcePaste">         <property name="hibernate.format_sql" value="true"/></div><div id="_mcePaste">         <property name="jboss.entity.manager.factory.jndi.name" value="java:/prodagioAPEntityManagerFactory"/></div><div id="_mcePaste">         <property name="hibernate.search.default.indexBase" value="/prodagio_indexs"/></div><div id="_mcePaste"><property name="hibernate.ejb.event.post-insert" value="org.hibernate.search.event.FullTextIndexEventListener"/></div><div id="_mcePaste"><property name="hibernate.ejb.event.post-update" value="org.hibernate.search.event.FullTextIndexEventListener"/></div><div id="_mcePaste"><property name="hibernate.ejb.event.post-delete" value="org.hibernate.search.event.FullTextIndexEventListener"/></div><div id="_mcePaste">      </properties></div><div id="_mcePaste"> </div><div id="_mcePaste">      </div><div id="_mcePaste">   </persistence-unit></div></div>
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