Query regarding statuses [Process,Task,Custom]

sonalik — Fri, 14 Apr 2017 05:15:32 GMT

Hi Team,I have few queries regarding process statues, task statues, custom statues...I have listed down the requirement,1. fetch all processes as well as tasks whose status="In Progress"2. Ability to add custom statuses. For example status workflow for a process can be e.g.Started->InProgress->

Re: Query regarding statuses [Process,Task,Custom]

jearles — Fri, 14 Apr 2017 18:22:27 GMT

Sonali,

I think, at a conceptual level what you're asking for certainly makes sense - but also consider that, when using a BPM engine more or less 'correctly', those things should be indicated simply by viewing the current process step in the execution context.

Take the following workflow for example:

There are a couple of notable things:

The Process Diagram is clearly drawn.
- This allows for a regular user to view the diagram.
The Task names are coherently labeled and distinguishable.
- This allows a regular user to understand what is happening, even though you may be doing some complex things under the covers.
The Flow arrows are actually labeled.
- which allows you to query on those names in the historical database.

When you view the process execution, there isn't really a need for a process status. You should be able to look at the current task and say: "Okay, so we're currently clarifying the invoice for the customer", and you'll be able to react to that. While statuses could be helpful and useful; in my mind, that notion deters from the original intention of BPMN, and BPM engines - which is to clearly establish an executable process that can be understood by both the developers and the business.

You can add as much custom logic as you need on the backend, but if you name your steps coherently and in a way that clearly lays out your intentions, a regular business user should be able to understand exactly what is happening and where the process execution is currently sitting. You could honestly display the current task that a process is on, and that would be sufficient to give someone an idea of what is happening.

Anyway:

As for fetching processes that are "In Progress" or given a certain status; well, in Activiti, a process is still 'running' unless it has an END_TIME_ set in the database - so you could simply query for all processes without an END_TIME_ set. And for the custom status queries, simply query for tasks given a certain name, or processes that are currently on a given task.

Cheers,
-JEarles

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Query regarding statuses [Process,Task,Custom]

Re: Query regarding statuses [Process,Task,Custom]