Re: [rules-users] mixing activation-group and ruleflow-group

Thank you so far. I also noticed that my solution is in some way unefficient if there are a lot of categories. I not only have to change rules saliences, I do have to change the /not Recommendation(cname == "pets"...)/ lines in every rule, too. So I have a new approach leave out the removing of Recommendation facts. The solution is near yours, laune. But I have a new problem now. I added a value variable (double) to my Recommendation class. I also added a new class that holds a HashMap (<String, Double>). Where String is the name of the category and the double value is dependent on the category (higher prioriry, higher value). And I now like to calculate the value for each Recommendation that was added. rule "calculate recomm value" salience 15 when $recomm : Recommendation($cname : cname, $recomm_value : recommValue) $map : HashMap(FilterCriteria.categories) then modify ($recomm) { setRecommValue($recomm_value * $map.get($cname)) } end But eclipse says: /The operator * is undefined for the argument type(s) double, Object/ Using $map.get("test") in a normal java class works perfect and return the expected double value. Where is the mistake in the rule? Thank you -- View this message in context: http://drools.46999.n3.nabble.com/mixing-activation-group-and-ruleflow-gr... Sent from the Drools: User forum mailing list archive at Nabble.com.