How to get Task IDs for a specific process instance or by passing various fields in JBoss BPM Suite 6?

Solution Verified - Updated -

Environment

  • Red Hat JBoss BPM Suite (BPMS) 6.x

Issue

  • How to obtain Task IDs for a particular process instance?
  • How to obtain tasks by passing various fields (i.e. status and potential owners)?

Resolution

There are the following options how to achieve this.

  • Task Service API
    TaskService API can be used in embedded mode but also when obtained from RemoteRuntimeEngine. In order to achieve that you can use:

    List<Long> procInstIds = new ArrayList<Long>();                     
procInstIds.add(piid);
List<String> potOwners = new ArrayList<String>();                     
potOwners.add("john");
List<Status> status = new ArrayList<Status>();                     
status.add(Status.Created);
status.add(Status.Ready);
status.add(Status.Reserved);
status.add(Status.InProgress);
status.add(Status.Suspended);
List<String> languages = new ArrayList<String>();                     
potOwners.add("en-UK");

List<TaskSummary> list = taskService.getTasksByVariousFields(
                    null, null, procInstIds, null, potOwners, null, status, languages, false);

  • Through Rest API

/rest/task/query?processInstanceId=pid
  • Using the Query API. Starting on BPM Suite 6.1, a new Query API is available and it allows tasks query using various fields and also using regex expression.

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