3 Replies Latest reply on Mar 20, 2012 8:06 AM by salaboy21

Process variables rules template relationship

subbass00 Mar 19, 2012 4:34 PM

I am a little bit confused about the rules fact variables and process variables relationship. I have a process with variables: name:String, age:Integer, access:Boolean. I would like to verify with a business rule if the variable age is less than 18 then the access would be set to false. I created a model called User with these fields. The rule separately works fine, but I am inserting a User object in ksession. If I am using a process model like this:1.Human Task, 2 Business rule, 3.Human task, how can I set these values or what is the relation ship exactly between my process variables and rule template data?

Should I use the rule template as a variable in my process? If yes please let me know how it is possible.

Note: The fields: name, age are filled in runtime by a user.

Thank you in advance.

Kind regards, Hunor-Attila Kerekes

1. Re: Process variables rules template relationship

swiderski.maciej Mar 20, 2012 3:34 AM (in response to subbass00)
You can access process variables from rules so I believe that would work for your case. Just make sure you insert process instance as a fact into the session so you can then access it and its variables.

import org.drools.runtime.process.WorkflowProcessInstance rule "your rule" when p: WorkflowProcessInstance() then System.out.println("Variable is " + p.getVariable("yourVar")); end
HTH
Actions
2. Re: Process variables rules template relationship

subbass00 Mar 20, 2012 7:51 AM (in response to swiderski.maciej)

Thank you very much Maciej Swiderski it works fine now .
Actions
3. Re: Process variables rules template relationship

salaboy21 Mar 20, 2012 8:06 AM (in response to subbass00)

You can also do something like:

import org.drools.runtime.process.WorkflowProcessInstance rule "your rule" when p: WorkflowProcessInstance($myVar: variables["yourVar"] == "something") then System.out.println("My Variable is equals to something"); end
Actions

Go to original post