From: "Edson Tirelli" < tirelli@post.com>
To: "Rules Users List" <rules-users@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@gmail.com
icq: 239128267

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--
  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@gmail.com
icq: 239128267

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