exploring JBPM 4: some questions
luigiexp Feb 17, 2009 11:45 AMHi,
I hope someone can help me with these problems in jbpm4
1) Referring to the example in the JBPM 4.0 Developer Guide (par 2.2. Persistent execution mode) if I try to create a processDefinition in the PVM context, then when I try to deploy it I get the following exception:
[DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.DeployCmd@17e6a96 java.lang.NullPointerException at org.jbpm.pvm.internal.svc.DeploymentImpl.getFileNamesForType(DeploymentImpl.java:401) at org.jbpm.jpdl.deploy.ParseJpdlDeployer.deploy(ParseJpdlDeployer.java:38)
2) Futhermore, if I try to execute the following code (see the example in the developer guide)
EnvironmentFactory environmentFactory = new PvmEnvironmentFactory("environment.cfg.xml"); ProcessService processService = environmentFactory.get(ProcessService.class); ExecutionService executionService = environmentFactory.get(ExecutionService.class); ManagementService managementService = environmentFactory.get(ManagementService.class); ClientProcessDefinition processDefinition = ProcessFactory.build("loan") .node("submit loan request").initial().behaviour(AutomaticActivity.class) .transition().to("evaluate") .node("evaluate").behaviour(WaitState.class) .transition("approve").to("wire money") .transition("reject").to("end") .node("wire money").behaviour(AutomaticActivity.class) .transition().to("archive") .node("archive").behaviour(WaitState.class) .transition().to("end") .node("end").behaviour(WaitState.class) .done(); Deployment deployment = new Deployment(processDefinition); processService.deploy(deployment);
I get other problems:
- PvmEnvironmentFactory does not exist anymore
- It is not possibile to use the costructor new Deployment(processDefinition) since now Deployment is an inteface. If I try using the class new DeploymentImpl(processDefinition) I get the exception showed at the point 1)
3) If I try to get a process already deployed, I could use the ProcessService.findProcessDefinitionById (or findProcessDefinitionByKey) but the ProcessDefinition do not allow me to access to the data that are available in ProcessDefinitionImpl.
If I try a cast it does not work. How can I get the processDefinitionImpl (I mean the process infos such as nodes, events and so on) ?
4) is there a way to contact the developers to signal possible problems?
Thanks
Luigi