Dynamic Variable Assignment

[stevenmayhew]

Hi all,

Just a quick question - I'm wondering about using jBPM/jPDL for a project which I am currently working on - so far reading through the documentation I haven't found an easy way to use variables that are found through database call etc, I was wondering if I am just missing something.

For example (very basically) I would have a process to insert a sale for an object - I wish for the list of objects for sale to be populated from a database onto the page so that someone can choose them from say, a drop down list.

Is there any way to do this, or am I just missing something major. I see that I can create this sort of thing statically in the XML in my process definition, but I need to be able to do it dynamically.

Cheers,
Steven

[saraswati.santanu]

Steven,
You can create variables execution time using methods like setVariable etc. in execution service. You can use those variables in your custom execution code using OpenExecution.getVariable/getVariables.
Since the variables are completely dynamic in nature, you cannot statically declare them in the jpdl xml.

[stevenmayhew]

Hi Santanu,

Thanks for your quick reply - I am also wondering which version of jBPM I will need to use, at the moment I am using 3.2.3 - I'm assuming that I need to switch to a 4+ version?

[saraswati.santanu]

oops...my reply was based on Jbpm 4.2. I do not remember the exact behaviour in jbpm 3.x, i need to check my older project.

But it might be a good idea for you to switch to jbpm4 if possible.