I think Roger Studner wrote: > > Is there (I read something 'akin' to this in the mailing archive) a big > performance hit as well? > > I like to use beans/shadow facts for a variety of reasons, but have always > been under the impression that when i'm going to assert a 'huge' number of a > particular fact type, that I should be using a deftemplate/fact API versus > just using defclass/definstance of a bean representing the exact same > information.
There *was* a performance issue in earlier versions of Jess 6 related to Fact slots containing Java objects (doesn't matter whether the Fact is a plan fact or a shadow fact.) The issue was that Jess didn't do the kind of efficient indexing of those slots that it can do with primitive types. That's been cleared up now. There's no performance penalty for using definstances. --------------------------------------------------------- Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National Labs FAX: (925) 294-2234 PO Box 969, MS 9012 [EMAIL PROTECTED] Livermore, CA 94550 http://herzberg.ca.sandia.gov -------------------------------------------------------------------- To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED] --------------------------------------------------------------------
