jbpm getting started

[wrschneider99]

Here's how I am incorporating jBPM 3.1 into an existing Hibernate3/Spring app. My goal is to have a single SessionFactory for jBPM and the rest of my app, so everything participates in the same Spring declarative transactions.

- add jbpm-3.1.1.jar to WEB-INF/lib.
- in applicationContext.xml, I created a bean for JbpmConfiguration

<bean id="jbpmConfig"
class="org.springmodules.workflow.jbpm31.LocalJbpm ConfigurationFactoryBean">
<!-- pass in existing sessionFactory -->
<property name="sessionFactory" ref="sessionFactory"/>
<property name="configuration" value="WEB-INF/jbpm.cfg.xml"/>
<property name="processDefinitions">
<list>
<ref local="process1"/>
</list>
</property>
</bean>

<bean id="process1" class="org.springmodules.workflow.jbpm31.definitio n.ProcessDefinitionFactoryBean">
<property name="definitionLocation" value="WEB-INF/process1.xml"/>
</bean>

- sessionFactory/hibernate configuration has to incorporate all of the jBPM org.jbpm.....hbm.xml mappings *and*your own.

- jbpm.cfg.xml copy-pasted from jBPM docs, but I took out reference to hibernate.cfg.xml since the SessionFactory is being provided via Spring.

- process defs (process1.xml etc.) are normal.

- you have to create the DB tables yourself somehow.

Only problem: it seems like this is causing a new version of each process to be redeployed to the jbpm_processdefinition table every time the app is restarted. This seems a little odd, and may make the Spring-based process deployment less useful.

[Costin Leau]

Only problem: it seems like this is causing a new version of each process to be redeployed to the jbpm_processdefinition table every time the app is restarted. This seems a little odd, and may make the Spring-based process deployment less useful.

Do you have any idea what causes this redeployment? Is it caused by Spring integration? Can you please raise an issue on jira so I can take a look at it and fix it on our next Spring Modules release?
Thanks.

[wrschneider99]

Do you have any idea what causes this redeployment? Is it caused by Spring integration? Can you please raise an issue on jira so I can take a look at it and fix it on our next Spring Modules release?
Thanks.

Wow, thanks for the quick reply. now that's service!

Honestly, I have no idea why this is happening. I'm new to jBPM, and right now focused on just getting the basic configuration and db connection/tx mgmt right.

I'm not sure what ProcessDefinitionFactoryBean does. Here's my process1.xml in case there's something unusual here:

<process-definition name="process1">
  <start-state>
    <transition to='s' />
  </start-state>
  <state name='s'>
    <transition to='end'/>
  </state>
  <end-state name='end' />
</process-definition>

[Costin Leau]

Your process seems to be just fine. What jbpm version are you using? Lately I've been a bit swamped in work and I didn't have much time to do the jbpm documentation but it's high on my Spring Modules priority list (you can actually vote the jira issue).
I'll try to reproduce your problem though from my tests I haven't had such a problem.

[wrschneider99]

Your process seems to be just fine. What jbpm version are you using? Lately I've been a bit swamped in work and I didn't have much time to do the jbpm documentation but it's high on my Spring Modules priority list (you can actually vote the jira issue).
I'll try to reproduce your problem though from my tests I haven't had such a problem.

I'm using jbpm 3.1.1.

[Costin Leau]

I have tested only with jbpm 3.1.0. I'll let you know if I find anything.

[Costin Leau]

FYI, I've created an issue on JIRA: http://opensource.atlassian.com/proj...browse/MOD-136

[tobysaville]

sorry if this is off topic now, but im following up on my post refering to the test folder earlier.

I have had a look in the zip distribution & at the online cvs repository, but i cant find the testing folder with the example applicationContext.xml file.

specifically, i am having trouble defining the hibernateConfiguration property of my org.springmodules.workflow.jbpm30.LocalJbpmSession FactoryBean bean (im using jbpm 3.0.2). I already have a org.springframework.orm.hibernate3.LocalSessionFac toryBean defined in my applicationContext.xml and i would like to use the configuration from this session factory. can you point me in the right direction regarding this?

My bean def so far:

<bean id="hibernateSessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
  <property name="mappingResources">
    <list>
      <value>...</value>
    </list>
  </property>
  <property name="hibernateProperties">
    <props>...</props>
  </property>
  <property name="dataSource">
    <ref bean="..."/>
  </property>
</bean>

<bean id="jbpmSessionFactoryBean" class="org.springmodules.workflow.jbpm30.LocalJbpmSessionFactoryBean">
	<property name="hibernateSessionFactory" ref="hibernateSessionFactory"/>
</bean>

Thanks for any assistance forthcoming

- tobes

[Costin Leau]

See this link from CVS: https://springmodules.dev.java.net/s...rkflow/jbpm30/
I'll put up some documentation so it will be part of the next release. Clearly there is a need for it.

[scott_mathieson]

Hi,

I have also seen the problem with new versions of processes being created, this is due to the fact that the deployProcessDefinition method of GraphSession in JBPM 3.1.1 ensures that a new process definition with an updated version is saved if the process name already exists.

I think I just need to come up with a method of flagging whether or not to deploy process definitions in the spring config file as currently my process definitions are specified in the Spring config file and as such are continuially re-deployed every time the server starts.

Any useful suggestions would be most welcome

Regards

Scott