show wait states before external service tasks

[ingorichtsmeier]

Create a red line to show a wait state infornt of an external service task.

[StephenOTT]

@ingorichtsmeier I was working on a style for this related to #32. My thought was that it should be a slightly different wait state visual, than Async config as you can still apply a wait state (similar how you can apply a Async to a User Task).

Here is a example or how i was showing the difference between User Task implied aync, and the specific Async config:

Thoughts on similar approach for external service task?
(Red is the manual async config, and the aqua is the implied)

[StephenOTT]

@ingorichtsmeier here is a example i just threw together from a unit test

Where the purple are the wait states for External tasks.
Red are Async Configs
Green is wait state for User Tasks

[ingorichtsmeier]

Hi Steven, thank you for your worthful input. I just entered the issue during a training and had no time think about other improvements.

I think that the terms "Async before" - "Transaction boundary" - "Wait state" can be interchanged to your personal favor. In the end they all means the same: the process state is flushed to the database. In my opinion it complicates the understanding for beginners, if you try to find the differences between the three terms and put these into a generated image.

[ingorichtsmeier]

External tasks should be mentioned here: /bpmn.js-report-template.html, line 128

[StephenOTT]

@ingorichtsmeier note that with a implicit wait state (user task, external task) vs a explicit wait (async before/after configs on a Task), a implicit does not require further config of job executor in a Unit test. But explicit requires extra job executions: Such as a User Task that is also configured as Async Before.

[rohwerj]

Currently I don't see the need for this anymore. The user should in my opinion know, that some bpmn elements come with an inherent "wait state". So only asyncBefore and asyncAfter are import to be visualized, as they are otherwise not known to the user.