does JavaDelegate executes inside a TX?

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luisalves00

Got something like this:

<serviceTask id="servicetask4" name="UpdateState"
         activiti:class="some.package.UpdateState">
        </serviceTask>
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public class UpdateState implements JavaDelegate {

    public void execute(DelegateExecution execution) throws Exception {

        …
   
        //update process vars
        execution.setVariable("approved", approved);
        execution.setVariable("sent", pa.isSent());

        getSomeJpa().edit(pa);
        ….
    }
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if getSomeJpa().edit(pa); throws an exception will the execution variable be changed on the DB and the workflow go forward?

thanks in advance.

frederikherema1

Yes, all code executed between two wait states (e.g.. process-start -> usertask or usertaks -> user task or signal -> end, …) is in a single transaction and IF there are no "async" steps in between. before an async step is executed, the transaction is committed and the next operation is queued as a job.

So if you have 2 service-tasks after each other, they'll be executed in the same transaction. If the second throws an exception, all stuff done in service-task1 will be rolled back as well. After this, the process is back in the state it was before the API call. In case of an exception when starting a new process-instance, there is no process started at all.