what is the initial value of b ? what are the salience of your rules ? and why not posting your rules directly ? ----- Original Message ----- From: "learner" <anandbabu6545(a)yahoo.com&gt; To: rules-users(a)lists.jboss.org Sent: Mardi 29 Mai 2012 12:29:28 Subject: [rules-users] how to use only updated value in drools I am having a drl file with 2 rules The 1st rule updates a attribute, say updates attribute b to 10 based on some condition. The 2nd rule has a check for values with b not equal to 10. It logs error for those values not equals to 10. The b value gets updated to 10 in rule 1. However in the second rule it does not use updated value and logs error. Is there a way to use the updated b value in the 2nd rule. I tried using modify but still the error gets logged. -- View this message in context: http://drools.46999.n3.nabble.com/how-to-use-only-updated-value-in-drools... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Thanks for the reply. Please find a basic structure of my drl file rule "set b value" salience 10 no-loop when e : Person(b == " "); then //use this to get value in an another rule e.setB("10"); insert(e); end rule "b other than 10" salience 1 no-loop when e : Person(b != 10) then System.out.println("error"+e.getB()); end

I tried using insert but still the issue persists -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-how-to-use-only-updated-val... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

I tried using insert but still the issue persists -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-how-to-use-only-updated-val... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Modifying the condition does not fix the issue It seems even though the value of b was modified to 10 in the first rule. It considers b as only blank (initial value) in the When clause of second rule.However in sysout the value of b appears properly as 10 -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-how-to-use-only-updated-val... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Please find a basic structure of my drl file rule "set b value" salience 10 no-loop when e : Person(b == " "); then ############## e.setB("10");

end rule "b other than 10" salience 1 no-loop when e : Person(b != "10") then System.out.println("error"+e.getB()); end