Yes, that's one good way to do it, using a router. From Jess:
Jess> (bind ?sw (new java.io.StringWriter))
<External-Address:java.io.StringWriter>
Jess> (defrule foo (foo) => )
foo
Jess> (assert (foo))
<Fact-0>
Jess> (watch rules)
TRUE
Jess> (call (engine) addOutputRouter WSTDOUT ?sw)
(run)
(printout t * ?sw * crlf)
*Jess>
FIRE 1 foo f-0
1
Jess> *
Note how the prompts disappear because they're going to WSTDOUT,
too. You could use a FileWriter instead of a StringWriter, if you
want.
Another way altogether (a better way, perhaps) to do this would be to
use the JessListener interface. See manual section 4.10 for an example.
I think Kami ROUSSEAU wrote:
[Charset Windows-1252 unsupported, filtering to ASCII...]
> Hello,
>
> When rules fire, is it possible to put their <rule-name> + <trigger-fact-id>
> + <trigger-fact.toString()> in a data structure (Vector or List) ?
>
> Maybe it can be done by using (watch "rules") after somehow redirecting
> WSTDOUT to the data structure, but I am not sure how to do this.
> Is it possible to create a PrintWriter that will add an entry to a data
> structure everytime it is flushed?
>
> -Kami ROUSSEAU
>
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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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