This is true if the set of rules to be fired is statically determined,
when the rules are defined. If it's a decision-based process itself
(my assumption) then modules wouldn't help at all.
Defmodules are a good feature, though, and will show up in
Jess... someday.
I think Katz, Ed wrote:
[Charset iso-8859-1 unsupported, filtering to ASCII...]
> It is my belief that if JESS had a capability similar to CLIPS's
> defmodule for partitioning the rule base, then the rules in the
> individual modules could be selectively (as a group) allowed
> to fire (those on the agenda of the active modules) excluding
> those in other inactive module partitions. This could easily
> be controlled both from JESS and Java using a CLIPS-like
> "focus" feature.
>
> In Willie Wheeler's second example, placing each of the rules
> into separate modules would allow such control by only allowing
> rule evaluation to focus on the desired module(s) and rule group(s).
> In fact, CLIPS's focus features allows a "stacking" capability to
> provide a pre-determined ordering of module activations.
>
> -Ed Katz
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, March 22, 2001 3:18 PM
> To: Willie Wheeler
> Cc: [EMAIL PROTECTED]
> Subject: Re: JESS: Controlling rule firing
>
>
> You should be able to achieve what you want by writing a custom
> Strategy object. This recently became VASTLY simpler than it once
> was. See the jess.Strategy interface and the jess.breadth and
> jess.depth implementation classes. This wil let you move the rule you
> want to fire next to the top of the Agenda. Then use dynamic
> salience, to force the agenda to be reordered before each cycle. Then
> use (run 1) in a loop and stop calling it when there are no more rules
> that you want to be fired.
>
>
>
>
> I think Willie Wheeler wrote:
> > Hi all,
> >
> > In the application I am writing, I need to be able to choose rules
> > in two different ways. The first is just the standard fact-driven way,
> > and there is no problem here. But for the second way, the Java program in
> > which Rete is embedded needs to be able to choose which activated rule to
> > fire. Is there a way to do this?
> >
> > Thanks,
> > Willie
> >
>
>
>
>
> ---------------------------------------------------------
> 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
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>
---------------------------------------------------------
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
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