You could also try something like the following:
WARNING: not real code...
file: DeviceMonitor.jess
(import com.yourpackage.Device)
(defclass Device com.yourpackage.Device)
(defrule shutdown-out-of-limit-devices
(Device (outOfLimit TRUE) (id ?deviceId) (OBJECT ?obj))
=>
(printout t "Devi
Nicolas Fortin wrote:
Hello everybody,
I am wondering if it is possible to randomize the firing order,
You can create an object that implements the jess.Strategy interface, see:
http://herzberg.ca.sandia.gov/jess/docs/70/api/jess/Strategy.html
You will implement the compare() method and Jess
[EMAIL PROTECTED] wrote:
I think Jeffrey Davine wrote:
I'll do the research, but as a general matter, do you think the Jess API
exposes enough information (particularly concerning the rete tokens) so that
I could write such a tool?
Alan's more optimistic, but I myself don't think this can re
Jeffrey,
I created a debugger quite a few years back (Jess version 4.xx) that I
have not maintained. I'd have to locate the media it is archived onto
but I've been wanting to resurrect it.
It didn't do exactly what you want and it was pretty crude since it was
fronted by the Windows Scriptin
Try this:
(view)
It displays the rete in a swing based graph.
alan
Jeffrey Davine wrote:
Does Jess have a built-in facility to browse rules? By that I mean a way
to check, for any rule, which if any facts match patterns in the rule
(showing how the fact is bound to the pattern) and whether
Eunice,
Please provide the exact code and error messages you are getting. Please
try to figure out whether the problem is with Protege, JessTab and/or
Jess before posting to this list.
For example, copy key portions (e.g. function names, exception names) of
the stacktrace you are getting and
Henrique Lopes Cardoso wrote:
Hi,
I have two problems.
---> The first:
I have a string which contains an atom. How do I convert it to an atom?
I tried this,which works:
(bind ?string "henrique")
(nth$ 1 (explode$ ?string))
Is there a simpler way?
I can't think of any at the mome
Henrique,
Also, if you are not modifying the multislot values but are simply
converting strings to multislots so that you can search for value(s) in
the string, you can use the new Jess 7.0 regex functionality, see:
http://herzberg.ca.sandia.gov/jess/docs/70/rules.html#patterns
Here is an ex
Henrique Lopes Cardoso wrote:
Hi,
I am having trouble in getting to multifields and strings.
I was trying to evaluate the contents of a string in a rule's LHS:
(assert (a "nice string"))
Note: this asserts a single ordered fact with two fields. The first one
is an ATOM and the second one is
Or more simply:
(assert (a "nice string"))
(assert (b nice)) ; note: "nice" (in quotes) won't work
(defrule r1
(a ?x)
(b ?y&:(member$ ?y (explode$ ?x)))
=>
(printout t "Found!" crlf)
)
(run)
i.e. a non-zero value from (member$) evaluates in the pattern above like
a TRUE - or like
Scott,
Someone else is likely to have a more relevant answer but I thought I'd
give my 2 cents worth - it's been a while (15 years?!) so I hope I can
remember this correctly...
During my graduate studies I worked with Dr. Len Myers and others at
CalPoly SLO on a BB based system that used CLI
> I wonder if anyone else running Jess with RePast has encountered a
> similar problem.
When people have trouble using Jess with one java library or another,
such as repast, the problems tend to be generic java problems, e.g.
missing library on the classpath, methods throwing exceptions
unexpe
Also, in testing.clp, you can place the following code to help you debug
the exception:
;; untested...ymmv
(try
(bind ?user-agent (new User "harvey"))
catch
;; ?ERROR will be the caught throwable
(printout t "ERROR = " (?ERROR toString) crlf)
(printout t "cause = " ((?ERROR getCause)
Matt,
Whoops, sorry - I didn't see your attachment.
alan
[EMAIL PROTECTED] wrote:
In the screenshot, you show that you've defined two "classpath
variables", one named source pointing to the "source" directory, and
one named "jess" pointing to jess.jar. This is no guarantee that
you've *used*
Matt,
Setting the windows classpath environment variable shouldn't be
necessary or may not even work at all since eclipse is likely to use
classloaders that are limited to those directories/jars specified in the
project configuration. I'm not an eclipse expert but you might want to
ping the e
Jerome,
You can match against ordered facts like so:
(defrule myRule
(first second ? fourth fifth ? seventh)
=>
(printout t "Rule fired")
)
What this does is to match any of the following facts:
(assert (first second dontcare fourth fifth dontcare seventh))
(assert (first second anything
First, let me mention that I'm happy to see someone using the
brand-new "static imports" feature -- the thing that lets you use
(CarClass.MINI) as a constant.
[alan]
Nice, this makes things a *lot* cleaner. Thanks!
Third, let me mention, as I often do on this list (I really need to
make this p
Yuri,
You can use any/all facilities that Java has for matrices since Jess has
full (reflective) access to the Java/third-party matrix APIs - see:
http://math.nist.gov/javanumerics/jama
If you want to pattern match against elements in a matrix, you can use
multifields or ordered facts. For e
Jerome,
I'm a little confused as to why your example below would work for either
set of facts.
First of all, your "rule" isn't a rule at all - it is a fact.
(MAIN::webservice
(service getaddress)
(project sage)
(org georgetown)
(analystname blake)
(analystrole lead)
(priorit
Scott,
My advice is to make your Regions explicit instead of using modules for
this purpose.
You could create a Region class (in Java), create instances of these
objects and definstance them as needed. Your rules could then pattern
match against these Region objects.
This is essentially ma
Richard, Kevin R. wrote:
I'm planning on using a defglobal variable to reflect the state of a
checkbox in the UI for my application. The value of this variable,
therefore will be set and modified in Java. Looking at the Jess API, I
don't see any means of changing the value of a Defglobal obje
Jason,
Nice! See you there...
alan
Jason Morris wrote:
Hello All Jess Users,
I am pleased to announce the launch of the Jess Wiki
http://herzberg.ca.sandia.gov/jesswiki/view
The Jess Wiki is a repository for a new Community of Practice centered
on the existing Jess User community. One of
[EMAIL PROTECTED] wrote:
Sorry for the delay -- I've been on vacation for a week.
No worries - hope you had a good time!
Your color-coding ideas are interesting but I think it's probably
better to do things according to precedent. Wouldn't the "Eclipse
way" be to have you Alt-click on a var
Ernest,
I've been using JessDE recently and found myself spending a considerable
amount of time checking to make sure my variables were bound and used in
the right places in the patterns. It seems to me that having a simple
way to verify/highlight the bindings visually would help in this regar
Title: RE: JESS: Jess agenda function
inline...
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf Of Michael Knapik
> Sent: Monday, May 03, 2004 11:19 AM
> To: [EMAIL PROTECTED]
> Subject: JESS: Jess agenda function
>
>
> I have a set of 5 rules
If you want to "manage" the agenda (conflict resolution) I think you will need to
implement:
http://herzberg.ca.sandia.gov/jess/docs/61/api/jess/Strategy.html
Otherwise, you can change the default strategy with:
(set-strategy)
Does this answer your question or am I missing the point?
alan
--
Title: RE: JESS: Re: 'mirroring' one jess process with another
Take a look at the jess event mechanism. You could use this to activate your duplication code. I don't know if all the information you would need is available via the supplied event object(s) - TBD.
Good luck!
alan
-Origi
Title: Updated 7.0 trial?
I finally had time to test out some new features in 7.0 but discovered that the download I saved has expired. Also, 7.0 no longer appears to be available for download.
Is there going to be another preview release in the near future?
Thanks in advance.
alan
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