[rules-users] How to get value of global variable from one rule to another

[Alexander Komissarov]

From: "Edson Tirelli" <tirelli at post.com>
> To: "Rules Users List" <rules-users at lists.jboss.org>
> Date: Fri, 15 Jun 2007 11:33:52 -0300
> Subject: Re: [rules-users] How to get value of global variable from one
> rule to another
>
>    Alexander,
>
>    Remember that the LHS is always evaluated at assert time and RHS is
> always executed at rule firing time. So, when you change something at rule
> firing time that you want to cause a reevaluation of the LHS, you must
> notify the engine calling "modify":
>
>
> map.put("result",res);
> map.put("result2",res2);
>
> modify( map );
>
>
>     []s
>
>     Edson
>
>
>
>
> Also, I've tried to map these values in the
> >
> > rule "AmountsAreNotNull" salience 20
> >     when
> >        ...
> >     then
> >
> > ...
> >
> > <res, res2 initialization>
> >
> > map.put("result",res);
> > map.put("result2",res2);
> > ...
> >
> > and check it in the next rule:
> >
> > rule "CompareValues" salience 10
> >
> > when
> > map : Map( keySet contains "result" )
> >
> > ...
> >
> > "keyset" couldn't found "result" and "result2" mapping
> >
> > but! when I've checked "keyset" in RHS part of this rule "keyset" HAS
> > proper values of "result" and "result2":
> >
> > ...
> >
> > then
> >
> > Iterator k = map.keySet().iterator();
> >         while (k.hasNext())
> >         {
> >             String key = k.next().toString();
> >             LOGGER.info("Key: " + key + "; Value: " + map.get
> > (key).toString());
> >         }
> >
> > ...
> >
> > end
> >
> > How I can check values of "result" and "result2" in LHS part of rule
> > "CompareValues"?
> > Thanks,
> > ____________________
> > Regards,
> > Komissarov Alexander
> > mail: aleks.komissarov at gmail.com
> > icq: 239128267
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
>
> --
>   Edson Tirelli
>   Software Engineer - JBoss Rules Core Developer
>   Office: +55 11 3529-6000
>   Mobile: +55 11 9287-5646
>   JBoss, a division of Red Hat @ www.jboss.com


Thank you for advice, but unfortunately,

using modify(map) in the rule "AmountsAreNotNull" cause difficulties like
infinite loop execution all previous rules INCLUDING this rule and EXCLUDING
final compare rule.

____________________
Regards,
Komissarov Alexander
mail: aleks.komissarov at gmail.com
icq: 239128267
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