Hi Steve, You're quite right; thanks for the tip. Consider the changes an official patch.
I think Steve Webster wrote: > I'm trying to go with your latter suggestion, registering JessListeners to > Nodes, and I noticed that all RETE_LEFT_TOKEN events do not carry Token > objects as part of the event. Rather some event generators, Node1 and > Node1LTR, carry Facts as the event objects, whereas others, NodeTest and > Node2, carry Tokens. This inconsistency in JessEvent object references makes > instrumenting the network difficult, because I would like to make use of the > Token tag to trap additions versus removals. Also, it appears that the > ViewFunctions.NodeViewer.eventHappened method assumes that all event object > will be tokens, and therefore it breaks when Nodes broadcasting Facts are > being displayed. > > I suggest that Node RETE_LEFT_TOKEN events carry Tokens as their objects. > Currently, the broadcasted facts are actually derived from the associated > Token object via the topFact method. Consequently, the change to a Token > reference rather than the topFact method invocation is a trivial change, and > it reduces processing by one method call. > > I probably don't have a full appreciation for the issues, so I look forward > to the feedback. > > Thanks, > Steve > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On > > Behalf Of [EMAIL PROTECTED] > > Sent: Monday, April 22, 2002 4:36 PM > > To: [EMAIL PROTECTED] > > Subject: Re: JESS: Debug Utility > > > > > > If you double-click a join node in the "view" display, it shows you > > the contents of both memories in that node; in theory, this is > > equivalent to the information you're looking for, if not so > > convenient. The (matches) command give out this same information. Both > > (matches) and (view) get their information from Node2.displayMemory(), > > so that would be one place to look. But be warned that using > > package-protected interfaces to get at the contents of the Rete nodes > > is dangerous business, as things do change quite a bit between > > releases -- both the interfaces and the data representation may > > change. > > > > The only public interface to what happens inside the Rete network is > > an event-based one. Every jess.Node object support JessListeners. You > > can add a JessListener to a node and it will send you an event > > whenever a token is delivered to it. Unfortunately there's no publi > > API for getting the nodes in a rule; but cheating and using > > HasLHS.getNodes() should be pretty safe. > > > > > > I think Steve Webster wrote: > > [Charset iso-8859-1 unsupported, filtering to ASCII...] > > > All, > > > > > > I'm interested in writing a utility that's similar to the > > (view) command, > > > with a bit of a twist. I'm interested understanding which predicates are > > > matched, failing a rule activitation. However, I'm having difficulty > > > understanding where to instrument the Rete network in order to > > trap these > > > partial matches. Any approaches to this problem would be greatly > > > appreciated. > > > > > > Much obliged, > > > Steve > > > > > > > > > --------------------------------------------------------- > > Ernest Friedman-Hill > > Distributed Systems Research Phone: (925) 294-2154 > > Sandia National Labs FAX: (925) 294-2234 > > Org. 8920, MS 9012 [EMAIL PROTECTED] > > PO Box 969 http://herzberg.ca.sandia.gov > > Livermore, CA 94550 > > > > -------------------------------------------------------------------- > > 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] > -------------------------------------------------------------------- > --------------------------------------------------------- Ernest Friedman-Hill Distributed Systems Research Phone: (925) 294-2154 Sandia National Labs FAX: (925) 294-2234 Org. 8920, MS 9012 [EMAIL PROTECTED] PO Box 969 http://herzberg.ca.sandia.gov Livermore, CA 94550 -------------------------------------------------------------------- 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] --------------------------------------------------------------------
