Re: [rules-users] Concatenating rule conditions

Thanks for the reply, I think I was a bit vague with my question (my apologies on this) I will try to elaborate further I have several set of rules that filter, each filters a different set of conditions (e.g. User, Date, Country.). I would like to construct rules that based on conditions in the ConditionMatrix (in my example) I would like to set a specific rule set. A wishful thinking approach would be something like: Following are 2 filter rules Rule "filter user" When $cm: ConditionMatrix(), $document: ArrayList() from collect ( Document (user.isPrivateName == $cm.user.isPrivateName) ) Then End Rule "filter date" When $cm: ConditionMatrix(), $document: ArrayList() from collect ( Document (date.isLegal == $cm.date.isLegal) ) Then //do something End The actual rule that utilized them would like : Rule "I am happy" extends "filter date" When $cm: ConditionMatrix(), Then //Do something End And a second rule can look like: (note that even if I can extend two rules then there is a conflict on $ document) Rule "I am sad" extends "filter date", "filter user" When $cm: ConditionMatrix(), Then //Do something End Hope this clearer now. Thanks Hezi From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Wolfgang Laun Sent: Wednesday, May 25, 2011 6:18 PM To: Rules Users List Subject: Re: [rules-users] Concatenating rule conditions Just for the heck of it, here's two more ways for "comibining" those two rules. (Gee, what a vague specification!) # straightforwardly doing both in one rule comb1 when $cm: ConditionMatrix() $docs1: ArrayList() from collect( Document( ... ) ) $docs2: ArrayList() from collect( Document( ... ) ) then ... end # abstraction rule comb2 when $cm: ConditionMatrix() $filter: Filter() $docs: ArrayList() from collect( $d: Document() eval( $filter.pass( $cm, $d ) ) ) then ... end -W 2011/5/25 Vincent Legendre <vincent.legendre(a)eurodecision.com&gt; Not sure of what you exactly ... If you want to combine tests, you can write this : Rule "test filter" When $cm: ConditionMatrix() $document: ArrayList() from collect ( Document (user.isPrivateName == $cm.isPrivateName, Payment.isLegal == $cm.isLegal) ) Then //do something End If you want to make the filter more dynamic and write only one "collect" rule, I don't see any out-of-the-box method. You can add a method in ConditionMatrix that accepts a Document and write this rule : Rule "test filter" When $cm: ConditionMatrix() $document: ArrayList() from collect ( Document (eval($cm.accept(this)) ) ) Then //do something End Of course you have to implement the "accept" method in Java (and you can then do several sub-classes for you filters) _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users