I think Flores Hernan wrote: [Charset iso-8859-1 unsupported, filtering to ASCII...] > Hi, > could somebody explain me what hapend when a new rule is added to a > preexisting Rete network, in the Nicolas e- mail he sais that Jess uses the > UPDATE tag to populates join nodes when a rule is added. > What is a join node?
The chapter of the Jess manual entitled "The Rete Algorithm" explains what a join node is. The important thing to know about it here is that there are many of them, and they each "remember" something about the relationships among facts. When a new rule is created, new join nodes may be created, and the UPDATE tag is then used to send messages to the new join nodes to tell them about things that happened in the past, so that their "memories" are in sync with the other, older join nodes. --------------------------------------------------------- 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] --------------------------------------------------------------------
