topic Re: Activiti process decisions listener in Alfresco Archive

Activiti process decisions listener

jfelix — Fri, 07 Dec 2012 14:03:42 GMT

Hi guys,I am currently trying to use Activiti in a way that it allows me to control all processes' decisions (expressions evaluation, transitions, etc) without having to define inner-process listeners.This means that I do not want to define listeners inside the processes to monitorize their workflow

Re: Activiti process decisions listener

logic3 — Fri, 07 Dec 2012 14:57:55 GMT

You could do this by implementing a custom BpmnParseListener and registering it via activiti.cfg.xml (property customPostBPMNParseListeners). This allows you to attach listeners to you process externally and you do not need to define them with in the process.

An example of the BPMNParseListener approach to add listeners:

http://svn.alfresco.com/repos/alfresco- … tener.java

I hope this is what you are looking for

Re: Activiti process decisions listener

jfelix — Mon, 10 Dec 2012 11:08:36 GMT

Hi, thanks for the reply!

I think I have not explained myself properly.

You idea suggests that my BpmnParseListener would be called by the Activiti engine after a decision over some process flow.

What I want is, for example, to implement an ExpressionManager that allows me to evaluate process expressions without having to use jUEL.
For that, I would have an ELResolver that knows how to deal with my own application's objects.

Re: Activiti process decisions listener

jbarrez — Tue, 11 Dec 2012 07:11:32 GMT

What I want is, for example, to implement an ExpressionManager that allows me to evaluate process expressions without having to use jUEL.
For that, I would have an ELResolver that knows how to deal with my own application's objects.

The expressionManager is (in theory at least) pluggable: it is injectable in the ProcessEngineConfigurationImpl. So you can inject your own (ie with Spring) or subclass that class with your own configuration.