Re: [rules-users] Large number of rules in Drools

My rules are as follows. rule "rule1" salience -2 dialect "mvel" when stud : Student ( field == "ARTS", state.equals("WA")) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName("ABC"); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName("XYZ"); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end rule "rule2" salience -100 dialect "mvel" when stud : Student ( field == "ARTS", state.equals("WA") , city == "SEATTLE")) then java.util.List subList = new java.util.ArrayList(); Subject subject = new Subject(); subject.setName("ABC"); subject.setFees(33454); subject.duration(4); subList.add(subject); subject = new Subject(); subject.setName("XYZ"); subject.setFees(33454); subject.duration(4); subList.add(subject); stud.setSubjects(subList); end Student is the main object and it contains List of Subjects. here the way I am using the salience because if the input us shweta, ARTS, WA,Olympia it matched rule1 but if the input is shweta, ARTS, WA, Seattle it matches 1 and 2 but i want the rule 2 to be executed so salience. I am using StatelessKnowledge Session and also the resource change scanner. I execute one rule at a time and the scanner poll interval is 1 hour. When I started with 100 rules I was using "PK" as my source in changeSet.xml but when the rules grew to 20K I was not able to build the rules in Guvnor UI and hence I started using "DRL" as source. The way I generate drl is using a script which converts the csv to drl format. I copy the drl to the text area in techincal rules and save it. ( this copy is also paiful so I asked that if there is an upload drl file unlike the import drl file) In changeset I give the path to the url in webdav /guvnor/org.drools.guvnor.Guvnor/webdav/packages/StudentRules/StudentRules.drl I am not sure if I am doing it the right way. Please suggest. Thanks, Shweta On Mon, Jan 9, 2012 at 11:58 PM, laune [via Drools] <[hidden email]<http://user/SendEmail.jtp?type=node&node=3648661&i=0> > wrote: > Salience is just one way to force the evaluation of a condition before > others. In fact, using salience throughout is just a way of re-creating a > sequence of plain old if statements using a rules engine. > > I'm not going to waste my time and yours by elaborating on possible > alternatives unless you come up with a detailed description of your rules, > and how you run your rules engine: fact insertion, calls to fire, etc. > > -W > > 2012/1/10 Shweta1986 <[hidden email]<http://user/SendEmail.jtp?type=node&node=3647015&i=0> > > > >> I am not sure I understand that. What is the other option for this case. >> Why would simple rules not work for 20 K rules. Am I missing something. I >> cannot use database to store my rules. Drools also gives me salience which >> I need for my usecase. >> >> On Thu, Jan 5, 2012 at 11:29 PM, laune [via Drools] <[hidden email]<http://user/SendEmail.jtp?type=node&node=3646449&i=0> >> > wrote: >> >>> 2012/1/6 Shweta1986 <[hidden email]<http://user/SendEmail.jtp?type=node&node=3637255&i=0> >>> > >>> >>>> And my rules are very simple it is like if string comparison then set >>>> that's it.. >>>> >>> This doesn't really warrant the use of a rule based system. If keeping >>> this logic out of the application or an easy maintenance of these if-then's >>> are your main goals, there are other ways. I've already hinted at this, >>> with the idea of providing the information embedded in similar rules as >>> data. >>> -W >>> >>> >>> >>> _______________________________________________ >>> rules-users mailing list >>> [hidden email] <http://user/SendEmail.jtp?type=node&node=3637255&i=1> >>> https://lists.jboss.org/mailman/listinfo/rules-users >>> >>> >>> ------------------------------ >>> If you reply to this email, your message will be added to the >>> discussion below: >>> >>> http://drools.46999.n3.nabble.com/Large-number-of-rules-in-Drools-tp36303... >>> To start a new topic under Drools: User forum, email [hidden email]<http://user/SendEmail.jtp?type=node&node=3646449&i=1> >>> To unsubscribe from Drools: User forum, click here. >>> NAML<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=... >>> >> >> >> ------------------------------ >> View this message in context: Re: [rules-users] Large number of rules >> in Drools<http://drools.46999.n3.nabble.com/Large-number-of-rules-in-Droo... >> >> Sent from the Drools: User forum mailing list archive<http://drools.46999.n3.nabble.com/Drools-User-forum-f47000.htm... 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