[rules-users] Decision table accessing my own methods

Hi there, I have been trying for hours now to get a decision table that can call my own methods. Lets say I've got a Classroom, and a list of 4 students. And my rule is to not have Bill and Bob in the same classroom. I have a method Classroom.hasStudent(String name), which will say whether the room has Bill or Bob. But how do I call it??? Imagine this is my decision table: classroom: Classroom classroom.hasStudent("$param") Bob Bill How in the world do I get it to not say "no viable alternative at input "bob" for blah blah blah"? I've also tried classroom.hasStudent("$param") == true with no success. Please help, Thank you... Daniel -- View this message in context: http://n3.nabble.com/Decision-table-accessing-my-own-methods-tp114250p114... Sent from the Drools - User mailing list archive at Nabble.com.