Hi, I hope you can help me out here with a way to implement this rule: 1) I have String WM 2) I have beans in WM with a property called 'code' public class MyBean { private String code; ... 3) I want a rule of the type "Process MyBean with the longest-matching, not-null code" Let explain myself a little further with an example. I have the following MyBean objects in WM with the given code properties: MyBean [code = 44] MyBean [code = 443] MyBean [code = 4432] MyBean [code = 36] MyBean [code = 7] What I want to get is a rule where the following samples would assign to a variable the given results shown: 4411111 gives MyBean [code = 44] 4433333 gives MyBean [code = 443] 22222 gives null I think the rule could start like: rule "Process MyBean with the longest-matching, not-null code" dialect "mvel" when $s : String() $m : MyBean($s matches /the longest not-null possible MyBean.code/) then ...... Thank you -- View this message in context: http://drools.46999.n3.nabble.com/match-longest-matching-Long-in-WM-tp318... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users