Hi All , I am trying to implement the stateful drools implementation with one big object (This object has many objects inside needed for rules). I insert this object in session and fire all rules. In case the object exist in working memory , I update the object using facthandler. My problem is as soon as the object gets updated using the fact handler all rules again gets fired. My business requirement is to only fire the rules whose value got changed in the update process. I can't split the object into small objects , since it has all the relationship and all the rules are already written based on this structure. Could you please guide me how to implement this requirement. Any help is really appreciated. Let me know in case you need any details. Thanks Vinay -- View this message in context: http://n3.nabble.com/Firing-only-changed-object-rules-in-stateful-session... Sent from the Drools - User mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Hi , Thanks for the reply. I am new to drools so not much aware of control properties . Could you please tell more about control properties and if possible one simple example. Thanks Vinay salaboy wrote: > > Hi, > Rules reacts on facts changes, if you have one big fact the changes > inside > them will not fire reactions until you update your big fact, that > cause > that > all the rules over that big fact fires again. > To solve this, you can add control properties to your fact and to > your > rules. > > On Mon, Jan 11, 2010 at 9:21 AM, Vinay <vinayism(a)gmail.com&gt; wrote: > >> >> Hi All , >> >> I am trying to implement the stateful drools implementation with >> one big >> object (This object has many objects inside needed for rules). I >> insert >> this >> object in session and fire all rules. >> >> In case the object exist in working memory , I update the object >> using >> facthandler. My problem is as soon as the object gets updated >> using the >> fact >> handler all rules again gets fired. My business requirement is to >> only >> fire >> the rules whose value got changed in the update process. >> >> I can't split the object into small objects , since it has all the >> relationship and all the rules are already written based on this >> structure. >> >> Could you please guide me how to implement this requirement. Any >> help is >> really appreciated. >> >> Let me know in case you need any details. >> Thanks >> Vinay >> >> >> >> -- >> View this message in context: >> http://n3.nabble.com/Firing-only-changed-object-rules-in-stateful-session... >> Sent from the Drools - User mailing list archive at Nabble.com. >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > > > -- > - http://salaboy.wordpress.com > - http://www.jbug.com.ar > - Salatino "Salaboy" Mauricio - > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://n3.nabble.com/Firing-only-changed-object-rules-in-stateful-session... Sent from the Drools - User 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 have a question to salaboy: If you have several rules which check and modify an object, will you need to add several properties to indicate which rule chagned that object. For example: rule "Rule1" no-loop true when $c:Chesse(type="Chedar") then modify ($c){addRule("Rule1")} end rule "Rule2" no-loop true when $c:Chesse(price < 100) then modify ($c){addRule("Rule2")} end rule "Rule3" no-loop true when $c:Chesse(color == "yellow") then modify ($c){addRule("Rule3")} end I guess I missed something. Don't I :-) ??? -- View this message in context: http://n3.nabble.com/Firing-only-changed-object-rules-in-stateful-session... Sent from the Drools - User mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users