i have a table in database Contain itemId and Item Price suppose i want to do that public class Applicant { private int ItemId; public static int Calculate(ItemId id) { // here i have written code to find item price and apply some formula for adding tax and return prices } } when i importing this class in guvnor application . in technical rule editor. under fact field it is not showing Calculate as a fact i want to write when 100<(Calculate(1)) then //// some rule -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Guvnor-Fact-field-tp2... 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