When execute output:

    new Usesr
ageA: 0
inc
ageB: 1

 

ageA: 1
ageB: 1
ageA: 1
ageB: 1 

....

.....

    package t2.state

 

import t2.state.User;
import java.util.Map;
import java.util.HashMap;

 

function Map createMap(String key,Object obj){
 Map m=new HashMap();
 m.put(key,obj);
 return m;
}

 

rule "boot"
 dialect "mvel"
 when
  u : User(age==0)
 then
  System.out.println(" new Usesr");
  kcontext.getKnowledgeRuntime().startProcess("p1rf",createMap("user",u));
end

 

rule "inc user age"
 dialect "mvel"
 ruleflow-group "inc age"
 no-loop true
 when
  u : User();
 then
  System.out.println("inc");
  modify(u){age+=1};
end