Hi All, I am using drool4.0.1 in my application, I have one map in global memory this map contains mapping of id and value,i want to validate these values. but when i am using in and not in rule like: eval(validatorMap.get("name") not in("amit","siddhartha")) where validatorMap is a map of id and value inserted in global memory. it is giving following error: org.drools.rule.InvalidRulePackage: Rule Compilation error : [Rule name=Short Name, agendaGroup=MAIN, salience=0, no-loop=false] com/telekurs/nva/mde/fe/ak/validation/Rule_Short_Name_0.java (8:330) : The left-hand side of an assignment must be a variable com/telekurs/nva/mde/fe/ak/validation/Rule_Short_Name_0.java (8:357) : Syntax error on token "not", invalid AssignmentOperator please help me how to validate value from a map using in and not in operator of drool. Thanks. -- View this message in context: http://www.nabble.com/probliem-in-using--%22in%22-and-%22not-in%22-operat... 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