Maybe you will have to import Message.Type.XML in the drl file and then use it. -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Thierry B Sent: Monday, December 01, 2008 3:32 PM To: rules-users(a)lists.jboss.org Subject: [rules-users] drools 4.0 and enum in java 1.5 Hello, I'd like to use enum in java 1.5 with drools. I try that : A message class : package com.pv.rules.beans; public class Message { String payload; Type type; public enum Type { XML; } public Message(){ this.type = Type.XML; } public Message(String payload){ this.type = Type.XML; this.payload = payload; }; public String getPayload(){ return payload; } public void setPayload(String payload){ this.payload = payload; } public Type getType(){ return type; } } and in my drl : rule "Contexte1" when xpathEquals "/Root/aaaa" "bbbb" xpathEquals "/Root/cccc" "dddd then Log : "Contexte 1 ************* : OK"; end but I've this error : Unable to resolve ObjectType 'Message' : [Rule name=Contexte1, agendaGroup=MAIN, salience=0, no-loop=false] Rule Compilation error : [Rule name=Contexte1, agendaGroup=MAIN, salience=0, no-loop=false] Do you have an idea? Thanks :-) _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users NOTICE: If received in error, please destroy and notify sender. Sender does not intend to waive confidentiality or privilege. Use of this email is prohibited when received in error.