There are a number of ideas floating around on this - and yes data mapping within a BPMN2 process is probably now one of the hardest things to set up and maintain.

a) Have ability to map data outputs of a task to data inputs of the connected tasks(s) with a single button click
b) Ability to visualize the data flow of the process
c) Notifications of dependency errors when users decide to remove a process var, globals, imports, etc
d) Ability to "copy" existing data elements such as variables/globals/imports/etc from an already existing process or a process template..this has been asked in the community already and we are looking at it.

jBPM follows the BPMN2 specification for data setup and mapping closely which is a good thing as it does not introduce any wrappers around it (you might see other tools use extensions elements for this heavily). I don't think writing wrappers is a good idea, however making working with data as simple and intuitive as possible for users is very important so any ideas/thoughts/contributions are very welcome :)

Jean-Jacques, If you want to jump on IRC and I'd be happy to talk to you in detail about all of this as well.

Thanks.
Tihomir

On 8/16/12 3:38 AM, Esteban Aliverti wrote:

The problem is that BPMN2 specification requires the variables to be defined.
What you will need to do is to modify Designer to automatically create the required variables according to the IO specification of the tasks you have. Unfortunately this is not as easy as it sounds ;).

Designer keeps a representation of the process in JSON format. That JSON is then converted into BPMN2 when it is saved. When you open a process Designer first converts it from BPMN2 to JSNO back again.

You will need to tweak the Marshalling/Unmarshalling process..

The classes in charge of this are: org/jbpm/designer/bpmn2/impl/Bpmn2JsonMarshaller.java and java/org/jbpm/designer/bpmn2/impl/Bpmn2JsonUnmarshaller.java

@Tiho, do you see a better solution?

Best Regards,

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com

On Thu, Aug 16, 2012 at 5:10 AM, Jean-Jacques Borie <jean-jacques.borie@bluebe.com> wrote:

I need to add that we plan to use work item definition file to declare parameters of work item and we don't want to do it again on the workflow.

Jean-Jacques

On Thu, Aug 16, 2012 at 10:06 AM, Jean-Jacques Borie <jean-jacques.borie@bluebe.com> wrote:

Hello,

I want to simplify Oryx designer in order to don't have to map every variables with input/output of task.

I want to remove the need of declaring global variable and the mapping with parameter of task.

When you have lots of workflow, it's start to be very annoying.

I'm thinking of moving this declaration of mapping to do it at runtime.

Like having a spring configuration file to declare all variables needed for a series of workflow.

And next do the mapping of variable by IOC with work item or something like that.

I want to keep the scope variable between process and work item.

I want to make easier the work of people doing the workflow in order to give the tool for non developer.

Any idea ?

Thanks
Jean-Jacques Borie

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