Re: [rules-users] Iterating facts

FactType (and FactField etc..) are an internal representation of a declared type's CLASS, hence you can get names, types, etc.. but obviously NOT any instance's values from there. You'll need something like this: FactType factType = ksession.getKnowledgeBase().getFactType(pckg, "Project") List<FactField> fFields = factType.getFields(); // get all Project INSTANCES currently in the WM Collection objs = kSession.getObjects( new ClassObjectFilter( factType.getFactClass() ); for ( Object o : objs ) for ( FactField field : fFields ) Object fieldValue = factType.get( o, field.getName() ); FactType exposes generic "get" and "set" methods which use a reflection-like mechanism to operate on instances extracted from the WM. Notice that since declared types are transformed into classes at RUNTIME, there is no way to do it at compile time without this "meta" approach. Best Davide -- View this message in context: http://drools.46999.n3.nabble.com/Iterating-facts-tp4020214p4020254.html Sent from the Drools: User forum mailing list archive at Nabble.com.