Re: [rules-users] Weighted rules / scoring
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(a)googlemail.com> wrote:
From: Chris Strachan <chris.strac(a)googlemail.com>
Subject: [rules-users] Weighted rules / scoring
To: rules-users(a)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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