Hi,
This is related to an earlier question of mine. I have numerous
clients(applets) connecting and passing messages to a servlet. This
servlet receives it, parses it so that Jess can understand it and
passes it to a ServerSocket program(lets call it ExpSys) that has an
instance of Rete. ExpSys receives the fact and asserts or retracts
accordingly and returns a message back so servlet which is then sent back
to client applet(s). To my earlier qn as to how diff clients can share the
same instance of Rete, Ernest had suggested the use of clientId in the
fact (Unordered) so as to differentiate between the clients. My clp file
looks a bit like this...

; helpTextIndex will hold the indices of the help msg that i pass back to
; client. As we see the student making more and more mistakes, we concat
; the helpTextIndex with the corresponding index.
 
(defglobal ?*helpTextIndex* = (new java.lang.String " "))

(defrule switch-not-on-action
  ;If student is trying to operate without turning on the switch, then
  ;tell him so
  (biofact (id ?x) (bfact help-requested)) (biofact (id ?x) (bfact
switch-not-on))
   =>
  (bind ?*helpTextIndex* (call ?*helpTextIndex* concat " 0")))

and so on...

My question is, how will multiple clients not affect and corrupt the value
of helpTextIndex? Also, will this achieve the purpose of differentiating
between multiple clients at all or did i interpret Ernest's suggestion
wrongly?

Please let me know,
Thank you,
Raj.



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