Hi,
With the lack of support from the Madkit group, I hope there is someone here
who already tried to use a Jess Agent in Madkit.
I have a very small technical problem, when I create my JessAgent with Java
code, Madkit try to load a .clp file but with a wrong path : Error opening
file
Hi,
Let's say I have a deftemplate A with two slot : x, and y.
I have another deftemplate B whom extends A, adding slot z.
Then I have a rule that checks for any A-fact with special values for x and
or y.
If the rule fire, I want to create a B fact with the same values as in the A
fact
use the
underappreciated duplicate function, but you can't.
I think Skeptic 2000 wrote:
[Charset iso-8859-1 unsupported, filtering to ASCII...]
Hi,
Let's say I have a deftemplate A with two slot : x, and y.
I have another deftemplate B whom extends A, adding slot z.
Then I have a rule
Hi,
I'm currently using Jess as a kind of classifier, and I'm asking myself if
some mechanisms exist to detect inconsequent or impossible rules. A simple
example would be a rule testing a slot value being 10 and 10.
Thanks.
JF
Hi,
In my rules, I need to tests some shadows fact which have as one of their
properties a List.
For example, let's say it's a List of String and I my test is to check that
the string xyz is part of the list.
What would be the most proper way to do this ?
Thanks,
JFL
Something like this?
(defrule theRule
(theFact (theProperty ?theList:(?theList contains xyz)))
= ...
On Oct 24, 2006, at 2:15 PM, Skeptic 2000 wrote:
Hi,
In my rules, I need to tests some shadows fact which have as one of their
properties a List.
For example, let's say it's a List
To: jess-users@sandia.gov
Subject: Re: JESS: Test on a list from a JavaBean
Date: Tue, 24 Oct 2006 22:09:34 -0400
On Oct 24, 2006, at 8:14 PM, Skeptic 2000 wrote:
Thanks, I missed the contains, it's not in the Jess functions list, where
it comes from ?
It's a method
Hi,
I want to have a Java program that can add rules to a Rete object at
runtime. The rules would be entered as a String and once added, I would need
a way to refer to them on the Java side. What would be the proper way to do
it ?
Thanks,
JFL
Hi,
Let's say I have something like :
(defclass xyz x.y.com.XYZ)
(defrule x
?x-(xyz)
=
(...)
In the RHS, I would like to call a method that is not a bean get/set on the
matched 'xyz', what would be the proper way? (If possible, this method would
take a string as argument)
Thanks,
JFL
Hi,
I tried for the first time to use backward-chaining and I can't figure out
why this simple example don't work :
(deftemplate x
(declare (backchain-reactive TRUE))
(slot a)
(slot b)
)
(defrule printX
(x (b 12))
=
(printout t yeah!)
)
(defrule createX
(need-x (b ?y))
=
Let's say I have somthing like this in Java:
ShadowFactClass x1 = new ShadowFactClass();
ShadowFactClass x2 = new ShadowFactClass();
ShadowFactClass x3 = new ShadowFactClass();
rete.add(x1); rete.add(x2); rete.add(x3)
.
Somewhere else in the code I woule like to remove from the working
Hi,I have a serious problem with accumulate, I wanted to use it on some shadow
facts, but I noticed that I can't have more than one contained CE.I would
need to use a Time-varying method (OBJECT) and a test-CE in the matching part
of the Accumulate...
Something like (modifed from the
Hi,
I have some java code that create ShadowFact and some rules that modify them at
creation and when they are modified on the Java side.
I'm trying to compare two way of doing this :
First, doing a engine.runUntilHalt() and doing my java code that handle the
shadowfact after.
Second,
of them.
Thanks
From: [EMAIL PROTECTED] Subject: Re: JESS: calling a method on a matched
shadow fact Date: Fri, 3 Nov 2006 00:46:42 -0500 To: jess-users@sandia.gov
On Nov 2, 2006, at 1:29 PM, Skeptic 2000 wrote: Let's say I have
something like : (defclass xyz x.y.com.XYZ) (defrule x
Hi,
I have a rule looking something like :
(defrule wcooo ; exemple pour un while
(MyShadowfact (OBJECT ?o))
(test ( (str-length (?o methodreturningastring param)) 3))
=
(printout t rulefired (str-length (?o methodreturningastring param)) crlf))
And I strangly get the rulefired message with
Hi, in a LHS i'm getting a value from a shadowfact method and I want to compare
that value using to a fixed number, something like :
(test ( (?x domethod param) 3)
I get the error that 3 is not a java object, so I tried to replace 3 with : new
Integer 3, but I get the same message.
How can I
Hi,
With Jesp I can easily get the defrule of each of my rules in my .clp files and
display their names in a Swing application. What I would like to do next is to
display the actual text of the rule in this same application, can it be easily
done ?Thanks.
From: [EMAIL PROTECTED]
Hi, I have a rule looking something like : (defrule wcooo ;
exemple pour un while (MyShadowfact (OBJECT ?o)) (test ( (str-length
(?o methodreturningastring param)) 3)) = (printout t rulefired
(str-length (?o methodreturningastring param)) crlf)) And I
strangly get the
Hi,
Does a resetToMark after a mark is done undo the modify applied to the facts or
only remove newly added facts ?If yes, how this apply to shadow facts ?Thanks
_
Soyez parmi les premiers à essayer Windows Live Mail.
Hi,
If I add my user-functions trough Java instead of directly in the .clp files,
how I can get rid of the warning messages in the plug-in ?Thanks for help.
JFL
_
Soyez parmi les premiers à essayer Windows Live Mail.
Hi, this simple example show a problem I still have when designing Jess
rules.What I should do to avoid this situation in which two instances of Y will
be created.
If what I try to do is not clear, please say so.
Thanks.
CLP file :
(deftemplate X (slot a))
(deftemplate Y (slot s))
Hi,
I'm having some trouble with value exchange between Jess and Java via
UserFunctions that are implemented in Java.First problem : A first UserFunction
receives 1 argument from Jess and doesn't know the exact type, so I use the
javaObjectValue method to extract in a Object variable. Problem
Hi, doesn't know the exact type... so I use the javaObjectValue method to
Value has a type() method which tells you what kind of Value you've got.
javaObjectValue() won't create an object -- it will only return an exusting
object, if there is one (for resolved values, only for types
Hi,
As shown on JessWiki, I use the import functions to get my enum class in Jess
:(import xx.yy.zz.MyEnum)
then I try to match a slot of a shadow fact to one of the enum field :
(defrule rule1(MyShadowFact (OBJECT ?o) (property1 MyEnum.xyz))
= ...)
What I'm doing wrong ?Thanks.
JFL
Hi,
I need to add in the working memory some shadow facts with properties whose
values are null. Currently, my workaround is to use a NullObject to prevent
Jess from crashing upon finding a null value.Is it the recommended way to do it
?JFL
to handle null properties for a
long time; 6.1p8 can handle them, as can the current versions. What problem
are you having, exactly? On Aug 2, 2007, at 2:19 PM, Skeptic 2000
wrote:Hi, I need to add in the working memory some shadow
facts with properties whose values are null
reproduce anything like this; can you show
me a stack trace (run jess.Main with -stacktrace to see a full error
trace). On Aug 2, 2007, at 6:12 PM, Skeptic 2000 wrote:When I add
a shadow fact with a property having a null value, I get an exception (in
updateMultiSlot IRRC). JFLFrom
a NullPointerException. It's
not Jess's fault if your getter methods throw NPEs when called! On
Aug 3, 2007, at 2:51 PM, Skeptic 2000 wrote:Hi and thanks a lot for
helping, the details are here : That's the ShadowFact : public
class Test { private Integer a = null; private Integer b
Hi,
I'm trying to figure why the ruel2 doesn't fire :
(defclass SFA ca.usherbrooke.astus.prototype.pedagogue.SFA)
(deftemplate x
(slot y)
)
(defrule rule1
(x)
=
(printout t rule1 fired)
(add new SFA)
)
(defrule rule2
(SFA)
=
(printout t rule2 fired)
)
(reset)
(assert (x (y 1)))
Oops, I simply forgot the ( ) around the new and the Jess editor didn't see an
error there.
JFL
From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: JESS: adding shadow facts in
JessDate: Thu, 9 Aug 2007 15:30:58 -0400
Hi, I'm trying to figure why the ruel2 doesn't fire :
(defclass SFA
Hi,
Would it be possible to have a shadow fact with a multislot ?
(I know a shadow fact can have an array-based property, but that wouldn't work
with multislot pattern matching, what I'm looking for)Thanks
_
Envoie un sourire, fais
Hi,I'm having a problem when I batch two different .clp files that require the
same third .clp file.
File1.clp
Some defclasses
File2.clp
require file1Some rules using file1 defclasses
File3.clp
require file 1
Some other rules using file1 defclasses
rete.batch(file2);
rete.batch(file3);
Hi,
I'm curious how this :
http://ctat.pact.cs.cmu.edu/docs/ctat_2_1/cog_tutor_jess_tools.html#why_not can
be achieved.It is something that require a modification of Jess ? I don't see
how to find that information using the public API.
Thanks for help.
Hi,
I updated from 7.0p1 to 7.1 recently and JessDE doesn't recognize the stuff
specified in my BeanInfo classes anymore (it still works at runtime).
Is there some official changes in the introspection mechanisms?
Thanks for help.
PROTECTED] To: jess-users@sandia.gov Subject: Re: JESS:
introspection of shadow facts from 7.0 to 7.1 Date: Mon, 14 Jul 2008
18:04:27 -0400 On Jul 14, 2008, at 10:30 AM, Skeptic 2000 wrote:
Hi,I updated from 7.0p1 to 7.1 recently and JessDE doesn't
recognize the stuff specified in my
, 15 Jul 2008
11:24:45 -0400 Hmmm. You can certainly still redefine functions. Can you
show me an example of what's going wrong? On Jul 15, 2008, at 10:32 AM,
Skeptic 2000 wrote:Hi, Another problem encountered during
the 7.0-7.1 migration. I used to add empty user function defs
Hi,
Have you considered using annotations instead of naming scheme to create
deftemplates associated to shadow facts ?
Do you think it would be difficult thing to hack ?Thanks.
_
using whatever scheme you like. If you do this, and
describe it in our Wiki, then other people could use it too! On Jul
15, 2008, at 11:54 PM, Skeptic 2000 wrote:Hi, Have you
considered using annotations instead of naming scheme to create
deftemplates associated to shadow facts
Hi,
It seems to me that jessDE performances are not as good as they were (I'm using
the latest version).
Is it something under work ?Can I do something to reduce the lag when I'm
writing rules ? (I suspect it comes from the high number of templates I have).
Thanks.
Hi,
I'm currently looking to add Scala objects in Jess.It's working with Jess when
I do a run. (Scala add the getter methods in the .class file)However, it's not
working in JessDE even if a BeanInfo class file is also generated (in the same
directory) by Scala (trough annotations).
I can join
Hi,
Does backward chaining works with shadow facts ? (generally)
Is there some known limitations ?
If anyone has some examples to share, I would appreciate it.
Thanks.
_
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