Why would you want "every user to have their own Jess object" if
they're all going to have the same set of rules and facts? If that's
the case, why not just use one object in the server?
On Jul 17, 2007, at 5:33 AM, tanming_tanming wrote:
Hi,
I want to use Jess in multi-thread environment,So may be every
user have it's own Jess Object which has the same JESS facts. At
the same time ,each user could modify the facts.
Now ,my question is, 1)How does other users notes the facts has
been modified and to reload it.
By the way, I use jess command "load-facts" to load facts from a
file and save them with "save-facts".I have pasted some fragment of
my rules file below.
In java ,I use RMI as server to run system like this:
............
Rete m_rete = new Rete();
m_rete.batch("rule.clp");
m_rete.run();
.................
Any comments or examples will be very appreciated.
Sincerly,
Henry,Tan
----------------------------rule.clp------------------------
(import my.jess.*)
(deftemplate node (declare (from-class Node)))
(defrule initialize-1
(not (start))
=>
(load-facts "animal3.dat")
(assert (start)))
(defrule no-more
?phase <- (no-more)
=>
(save-facts "animal3.dat" node next-gensym-idx))
(defrule replace-answer-node
?phase <-(replace-answer-node ?name)
?data <- (node (name ?name)
(type answer)
(answer ?value))
?answer<-(answer ?question)
=>
; Create the new learned nodes
(bind ?newnode1 (gensym*))
(bind ?newnode2 (gensym*))
(modify ?data (type decision)
(question ?question)
(yes_node ?newnode1)
(no_node ?newnode2)
(answer nil))
(assert (node (name ?newnode1)
(type answer)
(answer ?new-animal)))
(assert (node (name ?newnode2)
(type answer)
(answer ?value))))
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Advanced Software Research Phone: (925) 294-2154
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