Hi,
I am trying to programatically find the next tasks to display to the user as
buttons while he is busy on any particular task.
I get this right with normal transitions to tasks and forks but do not know how
to do this when the transition is to a join. I would then need to find out
whether the join is only waiting for the current task in which case I will
display the task after the join to the user otherwise I need to display the
tasks that the join is still waiting for to the user.
Is this possible?
Basically the idea is to generate the transitions as buttons on the form for
the user and start the next task for the user and display the web page for that
task.
Currently I am doing the following to get the next task when a fork is involved.
| List<Transition> leavingTransisitons =
taskInstance.getAvailableTransitions();
| if (leavingTransisitons.size()!=1) {
| throw new IllegalStateException("Task may only have one
leaving transition!");
| }
| Transition leavingTransition = leavingTransisitons.get(0);
| log.info("leavingTransition = #0 ",
leavingTransition.getName());
|
| Node node = leavingTransition.getTo();
| if (node.getName().startsWith("fork")) {
| log.info("leavingTransistion.getTo() = #0 ",
node.getName());
| List<Transition> forkLeavingTrans =
node.getLeavingTransitions();
| for (Transition forkTransition : forkLeavingTrans) {
| log.info("forkTransition #0 ",
forkTransition.getName());
| transitionTasks.add(new
TransitionTask(leavingTransition.getName(),forkTransition.getTo().getName(),forkTransition.getTo().getName()));
| }
| } else if (node.getName().startsWith("join")) {
| log.info("leavingTransistion.getTo() = #0 ",
node.getName());
| }
|
I know that the hardcoding of task names as 'join' or 'fork' is ugly but with
the javassist I do not know how else to tell the type of the nodes.
Any help pointers appreciated.
I am using jbpm-3.2.2 with seam-2.0.0.GA
Cheers
Pieter
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