thank Ernest for clarification. regards & thanks Gang
>From: [EMAIL PROTECTED] >Reply-To: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] >Subject: Re: JESS: multiple Rete Engine. >Date: Tue, 24 Sep 2002 11:25:49 -0700 (PDT) > >I think Gang Liu wrote: > > Thanks > > My expectation is No too. But, in reality, I observed that one fact in >one > > engine activated one rule in another engine. Any ideas? > > thanks > > Gang > > >If you're coding in Java and you assert a single Fact object into >multiple engines, then if you modify that fact in one engine, all the >other engines will "see" the modifications -- although the indexes of >the other engines may be corrupted, and the behavior from that point >on will be undefined. As the manual states at one point, Fact objects >are the property of Jess once they've been asserted, and you can't do >anything else with them after that -- including asserting them into >another engine. > >Simiilarly, but not so disastrously, if you definstance a single Java >Bean into multiple engines, then changes made to the Bean from one >engine will broadcast to all the others -- that's pretty obvious >though, and nothing bad will happen. > >But sending the string "(assert (fact1))" to executeCommand on any >single engine won't effect any other engine in any way. The Rete >networks and fact lists for each engine are completely separateand >don't communicate at all. > > >--------------------------------------------------------- >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] >-------------------------------------------------------------------- _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com -------------------------------------------------------------------- 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] --------------------------------------------------------------------
