[rules-users] Problem in update() method

[Esteban Aliverti]

If both rules are in the same agenda group you can use lock-on-active
instead of no-loop:
http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-expert/html_single/index.html#d0e3717


Best,

2010/5/13 Greg Barton <greg_barton at yahoo.com>

> It is so because that's what you're telling the system to do. :)
>
> The no-loop modifier only prevents a rule's conditions from infinitely
> re-evaluating the tuples modified by it's own action, not the actions of
> other rules.  So when rule "Area_EstimatedRval_test_10-01-09_12-31-14"
> modifies a Para_2483 it will be reconsidered by the conditions in
> "Area_EstimatesRval4_10-01-09_12-31-14".  The only way to prevent
> "Area_EstimatesRval4_10-01-09_12-31-14" from firing again is to craft it's
> conditions such that they're no longer true. (maybe "fid2329 != eid2143"
> since that contradicts what "Area_EstimatedRval_test_10-01-09_12-31-14"
> does, but I don't know if that makes sense for your rules.)
>
> --- On *Wed, 5/12/10, Puneet duggal <duggalpunit at gmail.com>* wrote:
>
>
> From: Puneet duggal <duggalpunit at gmail.com>
> Subject: [rules-users] Problem in update() method
> To: "Rules Users List" <rules-users at lists.jboss.org>
> Date: Wednesday, May 12, 2010, 10:54 PM
>
>
>
>
> hi frnds
> i am having problem  with update() method when i call update method  from
> first rule
> it calls  second rule and goes in infinite loop calling the second method
> rule again and again
> why is it so ??
>
>
> rule "Area_EstimatesRval4_10-01-09_12-31-14"
> date-effective "01-Oct-2009" date-expires "31-Dec-2014"  salience 5
>  no-loop true
>   when
>  objectP2483 : Para_2483( (fid2329>=0);
>
>  then
>
>  objectP2483.setFid2339(objectP2483.getFid2338() *3.1);update(objectP2483);
>
>   rule "Area_EstimatedRval_test_10-01-09_12-31-14"
> date-effective "01-Oct-2009" date-expires "31-Dec-2014"  salience 5
>  no-loop true
>   when
>  objectP2483 : Para_2483( fid2339>0);
>   then
>  System.out.println("Area_EstimatedRval_test_10-01-09_12-31-14");
>  objectP2483.setFid2339(objectP2483.getEid2143());
>
>  update(objectP2483); end
>
> -----Inline Attachment Follows-----
>
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>


-- 
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Esteban Aliverti
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