lock-on-active not working as expected - jboss

Question

Rules are not fired even Once when lock-on-active is set true. Should it be fired once? I expect the Rule 1 to be fired once when using lock-on-active.
(Note: I have added the codes used to execute the rules )
Rule
rule "Rule 1"
lock-on-active true
ruleflow-group "Group A"
when
$c: Product()
then
System.out.println("Rule 1");
modify($c)
{
setAmount(1);
}
end
rule "Rule 2"
lock-on-active true
ruleflow-group "Group A"
when
$c: Product()
then
System.out.println("Rule 2");
modify($c){
setAmount($c.getAmount()+1)
}
end
Code for executing rules
KieServices kieServices=KieServices.Factory.get();
KieContainer kieContainer=kieServices.getKieClasspathContainer();
KieSession kieSession=kieContainer.newKieSession("ksession-lockOnActive");
Product product=new Product();
product.setName("Book");
product.setAmount(5);
((InternalAgenda)kieSession.getAgenda()).activateRuleFlowGroup("Group A");
kieSession.insert(product);
kieSession.fireAllRules();
kieSession.dispose();

Answer 1

First of all, the ruleflow-group attribute is meant to be used when using rules as part of a business process in JBPM. Latest versions of Drools have unified the behavior of ruleflow-group and agenda-groupso it shouldn't matter which one you use (even though I would recommend to use agenda-group).
Then, the way you are using to activate a flow group doesn't seem correct to me.
This is what I would do:
1) Use agenda-group in your rules:
rule "Rule 1"
lock-on-active true
agenda-group "Group A"
when
$c: Product()
then
...
end
rule "Rule 2"
lock-on-active true
agenda-group "Group A"
when
$c: Product()
then
...
end
2) Before firing the rules, set the focus on the agenda group:
kieSession.getAgenda().getAgendaGroup("Group A").setFocus();
kieSession.fireAllRules();
That should do the trick.
The rules still look odd to me, but maybe is because you are just doing a POC. Just a reminder: you shouldn't depend on the order of your rules in your DRLs to get the expected output.
Hope it helps,