Re: [rules-users] Is there a faster way of doing this in Drools ?

so you are using drools to build on-the-fly queries based on user input. You could probably do this via "static" rules. Since you basically have 4 variables (price, avg_user_rating, num_ratings, category), you could write 4 rules, one each that filters based on one of the 4 variables and then chain the execution through salience: rule price: salience 1 when $p: Product(price in param) then add $p to result rule avg_user_rating: salience 2 when $p: Product(avg_user_rating > param) then add $p to result and so on From: soumya_sd <soumya_sd(a)yahoo.comTo: rules-users(a)lists.jboss.org, Date: 05/09/2012 08:43 AM Subject: Re: [rules-users] Is there a faster way of doing this in Drools ? Sent by: rules-users-bounces(a)lists.jboss.org Vincent Legendre wrote java). base. Thank you for your insights. At this point I'm designing for the worst case i.e., I'm assuming the rules with change with every request. Moreover, this can happen on a regular basis in the system I'm trying to design. Product { price ave_user_rating num_ratings category } User wants to see Product with with the following rules at t=t_1 : If product.category in {A,B}. at t=t_2 : If product.category in {A,B} AND price < 100 at t=t_3 : If product.category in {A,B} AND price < 100 AND num_ratings 100 You can imagine the user changing these rules in a span of less than a minute. I understand that Drools is designed for cases when rules changes often. But can it support something like the one I described above where rules are changing at a much faster rate? Thanks. -- View this message in context: http://drools.46999.n3.nabble.com/Is-there-a-faster-way-of-doing-this-in-... 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 ----------------------------------------- The information contained in this communication (including any attachments hereto) is confidential and is intended solely for the personal and confidential use of the individual or entity to whom it is addressed. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this communication in error and that any review, dissemination, copying, or unauthorized use of this information, or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. Thank you