Start Process Instance Conditionaly

[bolashokry]

Hi there,

I wonder if there is a way to start process instance based on evaluating some conditions in xml.
I don't want to evaluate these conditions in java code, but in xml … for example:

I want to call:

runtimeService.startProcessInstanceByMessage("startingMessage", myVariables);‍

And write some expressions in <i>mymodel.bpmn20.xml</i> evaluates some expressions based on the passed <i>myVariables</i> and decide if the process instance should start or not.

Is there something in Activiti does this, or any workarounds.

Regards,
Bola

[martin_grofcik]

Hi Bola.

You can start your process definition and in the first step make decision whether to continue in the process or not.
This decision can be based on e.g.:
- rule evaluation (http://www.activiti.org/userguide/#bpmnBusinessRuleTask - supports decision tables.)
- script evaluation (script task)
- service call…

Regards
Martin

[bolashokry]

Thanks Martin for your reply, I was thinking in that workaround too, but since I don't want the process to be initiated and put <i>On-hold</i> state, most probably I ll go to the solution to add my evaluation conditions in java code that will decide either to call <i>startProcessInstanceByXXX</i> or not.