Inserting a list as fact in statelessKieSession in drools

Question

I am trying to insert a list as a fact in kieSession.what is the difference between the below two methods?.

Method1:

StatelessKieSession kieSession1 = kieBase.newStatelessKieSession();
            kieSession1.execute(List);

Method2:

StatefulKnowledgeSession kieSession = (StatefulKnowledgeSession) kieBase.newKieSession();
kieSession.insert(List);
            kieSession.fireAllRules();

I am able to iterate the list that is sent as parameter inside the drl in the stateful session, But i am not able to do that in stateless session. Can anyone tell how both sessions process the list passed as a fact?

Answer 1

StatelessKieSession kieSession1 = kieBase.newStatelessKieSession();
kieSession1.execute( (Object)aList );

Drools API Javadoc documents both overloaded forms of execute and explains what happens with either form.