You certainly need no-loop for rule "1 precondition" as it stands because the
Foo is updaetd, but not in a way that prevents the rule from firing again. One
way to prevent that would be to put a condition in the rule that is the
antithesis of some update you make:
rule "1 precondition"
when
foo : Foo( preconditionPassedRule not contains "1 precondition", f1 != null,
f2 != null)
then
foo.addPreconditionPassedRule("1 precondition");
update(foo)
end
As for lock-on-active, it should be used in conjunction with a ruleflow-group
or agenda-group. It's basically no-loop for the entire group, as I understand
it. I don't see either a ruleflow-group or agenda-group defined for those
rules. Did you do that?
--- On Tue, 11/11/08, techy <[EMAIL PROTECTED]> wrote:
> From: techy <[EMAIL PROTECTED]>
> Subject: [rules-users] no-loop & lock-on-active clarification
> To: [email protected]
> Date: Tuesday, November 11, 2008, 10:25 AM
> I tried following rules as given below and result
> are:(assumes facts which
> I tried are qualified for both rules)
>
> 1. when lock-on-active used with both rule, only rule
> "1 precondition" got
> executed for all facts.
> 2. when no-loop used with both rules, infinite loop
> 3. when lock-on-active for rule "1 precondition"
> and no-loop for rule "1
> main condition" used, both rule got fired correctly.
> 4. for vice versa of 3 scenario, only rule "1
> precondition" got executed for
> all facts.
> Can someone please clarify about this scenario and also
> diff between no-loop
> & lock-on-active? when we should use one and when
> should not?
> I went thru documentation and still could not understand
> the difference.
>
> public class Foo
> {
> private Set<String> preConditionPassedRules ;
>
> private Integer f1;
> private Integer f2;
>
> }
>
> rule "1 precondition"
> salience 100
>
> when
> foo : Foo( f1 != null && f2 != null)
> then
> foo.addPreconditionPassedRule("1
> precondition");
> update(foo)
>
> end
>
> rule "1 main condition"
> salience 100
>
> when
> foo : Foo( preconditionPassedRule contains "1
> precondition",f1 > 1000,f2
> < 1000)
> then
> #actions
>
> end
>
> --
> View this message in context:
> http://www.nabble.com/no-loop---lock-on-active-clarification-tp20443036p20443036.html
> Sent from the drools - user mailing list archive at
> Nabble.com.
>
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