Question on TaskQuery

[bdahon]

Hi there,

I've just run the following code :

taskService.createTaskQuery().processInstanceId(processId).activityName("xxx").list()

I'd expect this code to return only tasks that are associated to the given processInstanceId and whose name are xxx. But I get all sorts of tasks; I mean tasks whose names differ from xxx. Is that the expected behaviour ?

Cheers,

Ben

[sebastian.s]

I suppose it's not. Can you make a test case which demonstrates the problem? Then we can check and if necessary you can create a JIRA issue.

[bdahon]

Hi there,

I'm using the following jpdl file:

<?xml version="1.0" encoding="UTF-8"?>
<process name="TestTaskProcess" xmlns="http://jbpm.org/4.3/jpdl">

     <start g="9,20,48,48">
          <transition to="Task1" />
     </start>

     <task g="159,16,127,52" name="Task1">
          <transition to="Task2" name="t" />
     </task>

     <task g="159,120,127,52" name="Task2">
          <transition to="Task3" name="t" />
     </task>

     <task g="161,231,124,52" name="Task3">
          <transition to="end" name="t" />
     </task>

     <end g="371,233,48,48" name="end" />

</process>

And my test case:

          ProcessEngine processEngine = new Configuration().buildProcessEngine();
          RepositoryService repositoryService = processEngine.getRepositoryService();
          TaskService taskService = processEngine.getTaskService();
          ExecutionService executionService = processEngine.getExecutionService();

          NewDeployment deployment = repositoryService.createDeployment().addResourceFromClasspath(
                    "task-test.jpdl.xml");
          deployment.deploy();

          ProcessInstance processInstance = executionService
                    .startProcessInstanceByKey("TestTaskProcess");

          // Move to Task2
          String activeExecutionId = processInstance.findActiveExecutionIn("Task1").getId();
          ProcessInstance instance = executionService.signalExecutionById(activeExecutionId, "t");

          TaskQuery taskQuery = taskService.createTaskQuery().processInstanceId(
                    processInstance.getId()).activityName("Task2");
          System.out.println(taskQuery.list());
          // --> [Task(Task1), Task(Task2)]

And the outcome is [Task(Task1), Task(Task2)]. Which means I get two tasks instances even though I restricted my query on the activity name.

Maybe this is due to the way I "navigate" from one task to another.

Thanks,

Ben

[sebastian.s]

It is due to your strange way of using tasks. What are you trying to achieve? Assign the tasks to somebody and complete them. After completion of a task the execution will move on to the next one. In this case the TaskQuery is working fine and as expected.

Please note: Creating unit-tests extending JbpmTestcase is the preferred way of supplying test cases. It saves you a lot of code and makes testing easier.