Persistance and setActorId

[frinux]

Hi,

I'm trying to assign one people to one task in my Workflow. I added a custom AssignmentHandler :

public class CustomAssignmentHandler implements AssignmentHandler {

 private static final long serialVersionUID = 1L;

 public void assign(Assignable assignable, ExecutionContext executionContext) throws Exception {

 Demande demande = (Demande) executionContext.getVariable("demande");


 assignable.setActorId(demande.getValideur().getUsername());
 }

}

Here is the interesting part of my process definition :

<task-node name="validation">
 <task name="validate">
 <assignment class='logica.ws.CustomAssignmentHandler' />
 </task>
 <transition to="notifier_acceptation" name="validee"></transition>
 <transition to="notifier_refus" name="refusee"></transition>
 </task-node>

When it comes to this task, I get an exception :
Unknown entity: org.jbpm.taskmgmt.exe.TaskInstance

Details about the exception here :
http://pastebin.com/m457e5848

I found nothing when googling...

What do you think about this ?

[kukeltje]

your hibernate config is wrong I guess

[frinux]

Here is my hibernate config file :

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
<session-factory>

 <property name="connection.url">jdbc:mysql://localhost:3306/econges</property>
 <property name="connection.username">root</property>
 <property name="connection.password">unilog</property>
 <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
 <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>

</session-factory>
</hibernate-configuration>

It's a quite simple one...

[frinux]

In a forum I saw that 3 elements are required for hibernate:
- a javabean
- a mapping file
- a configuration file

I wrote the last one only, because in jBPM documentation there is no trace of the others. I also saw that jBPM handle everything for the persistance, so that we just have to execute the contextInstance.setVariable().

Am I right? What did I forget?

[kukeltje]

The full hibernate configuration indeed consists of multiple files (or at least multiple sections) the mapping file is in the jbpm jar. If the config file you posted is in the wrong place it cannot find the mapping files.

[frinux]

Hum the file is in the right place, I mean it is taken because it connects to the database.

I added the mapping files of my classes.

But I think the problem is somewhere else. When I'm debugging my action, I see that everything is going wrong since I step into the signal() function :

boolean response = false;

 //required fields, otherwise an exception is thrown...
 if(demande == null || demande.getDemandeur().getUsername().equals("")) {
 return false;
 }

 // Lookup the pojo persistence context-builder that is configured above
 JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
 try {


 ProcessDefinition processDefinition = ProcessDefinition.parseXmlResource("demande/processdefinition.xml");


 //process definition deployment
 //jbpmContext.getGraphSession().deployProcessDefinition(processDefinition);


 ProcessInstance processInstance = new ProcessInstance(processDefinition);

 //creates the instance variables
 processInstance.getContextInstance().setVariable("demande", demande);
 processInstance.getContextInstance().setVariable("dateEmissionDemande", new Date());

 // let's go !
 processInstance.setStart(new Date());
 processInstance.signal();

 //we check if the current active node is the right one : validation
 Token currentToken = processInstance.getRootToken();

 if(currentToken.getName().equals("validation"))
 {
 response=true;
 }
 else
 {
 response=false;
 }

 jbpmContext.save(processInstance);

 } finally {
 jbpmContext.close();
 }

 return response;

It doesn't go further than processInstance.signal();
It comes directly to the finally.

[frinux]

Sorry my last message doesn't help. I catched the exception and I came back to the first one :
couldn't assign id to TaskInstance(validate)

The problem is still there...