I think your issue is resolved Chris, but just curious would putting the rule like below make it more efficient?
rule "Myscoreincreaserule"
dialect "mvel"
when
a : Applicant( name == "chris",$score:score )
then
a.setScore( $score + 2 );
end
--Sarish
"Shoot for the moon. Even if you miss it you will land among the stars." - Les Brown
Hi,
Don't think I intended to create a new instance, just modify the one matched in the rule. The following seems to have got it working.a : Applicant( name == "chris" )
rule "Myscoreincreaserule"
dialect "mvel"
when
then
a.setScore( a.score + 2 );
end
Thanks for pointing me in the right direction.
Greg Barton wrote:
1) Where is the variable "score" initialized? If it's not a global the rule wouldn't compile.
2) Is your intent to create a new Applicant instance, or modify the one matched in the rule? (Or maybe you want to gather the score from the matched instance and put it (+2) into a new instance?
--- On Sun, 6/7/09, Chris Strachan <chris.strac@googlemail.com> wrote:
From: Chris Strachan <chris.strac@googlemail.com>
Subject: [rules-users] Weighted rules / scoring
To: rules-users@lists.jboss.org
Date: Sunday, June 7, 2009, 1:11 PM
Hi,
I want to be able to use drools / guvnor brms to store
weighted rules
(scoring), however I can't seem to find a way to do
this.
I attempted the following,
rule "Myscoreincreaserule"
dialect "mvel"
when
Applicant( name ==
"chris" )
then
Applicant fact0 = new Applicant();
fact0.setScore( score + 2 );
insert(fact0 );
end
drools didn't seem to like the way I did this.
Perhaps this isn't
permitted, in effect I am trying to do - score = score +
2.
Upon validation I get the following error.
[Myscoreincreaserule] Unable to build
expression for 'consequence': Failed
to compile: 1 compilation error(s): - (1,3) unqualified
type in strict mode
for: age ' Applicant fact0 = new Applicant();
fact0.setScore( score + 2 );
insert(fact0 ); '
Any ideas on how I should be approaching this?
Thanks,
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