That makes sense. What would be the best way to reestablish those links? I tried a simple bsave, clear the engine and perform a bload just to play around with it. The facts no longer shadowed the bean objects. Would it matter if I lost the previous work the engine did and just reload the rules and start feeding in the facts from where it left off without trying to reload the previous state of the engine?
Advertising
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, January 19, 2006 12:34 PM To: jess-users@sandia.gov Subject: Re: JESS: Bload question I think Krasnigor, Scott L (N-AST) wrote: > I performed a bsave from an engine that contains only shadow facts > (and some simple rules). If I do a bload with that file into a new > engine, are the facts that are loaded via the bload command remain shadow facts? > Or do I need to re-definstance them in order to see modifications to > the facts in working memory from my java app? Thanks. > Realize that the definition of "the objects" becomes rather slippery in cases like this. The serialized data file could be read in a completely different JVM, on a different machine, on a different network, so there's no way that Jess could reconnect those exact same objects -- the ones with the same physical RAM addresses, because, even if there were some way to store a reference to them, they mightn't be there when the file was read. There are two things that Jess could do: it could 1) disconnect the JavaBeans and forget about them; or 2) save them to the file. In the first case, you lose information, but you avoid problems with Serializability and identity. In the second case, if the Beans are serializable and are more value-object-like, then you get the same exact system back. That's what Jess does: it tries to save the Beans in the serialized file, so that, under the right conditions, everything ends up just as it was. --------------------------------------------------------- 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] -------------------------------------------------------------------- -------------------------------------------------------------------- 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] --------------------------------------------------------------------
