How to get the process instance id using expression?

[douglascrp]

I'm playing with Activiti Enterprise trial, and I'm developing a workflow where I have to create a identification for the workflow.
As what I need is to have a unique id, I thought about getting the instance id and use it.

Is there an easy way to get that value and set it as a form field?

At the end of the process, I have a Publish to Alfresco task, and I would like to use that value as the destination folder inside Alfresco.

If that is not an option, can you please suggest another idea?

Thank you.

[cjose]

process instance id can be used to uniquely identify an instance. If you want to display this id in your form, you can do the following:

Define a variable at the process level in your BPMN xml.
In your task forms, use a display value or display text field to show this variable.
After the process instance is started, you can use a script task/execution listener to set this variable value to process instance id.

Eg: If your variable name is "processId", you can set it as execution.setVariable("processId",execution.getProcessInstanceId())

Cheers,

[douglascrp]

Interesting.
I'm going to try it.
Thank you so much.