Any of the following:

* the file defined by your drools.packagebuilder.conf system property
* $HOME/drools.packagebuilder.conf
* $WORKDIR/drools.packagebuilder.conf
* META-INF/drools.packagebuilder.conf on the classloader relative path

    You also have the META-INF/drools.default.packagebuilder.conf that you may change or you may also declare a system property or call the API.

    Some of these options will not make the eclipse editor aware of your function, but all of them will work on runtime.

    []s
    Edson


2008/9/1 thomas kukofka <thomaskukofka@web.de>
Hallo Edson,

thanks for the quick answer. Where can I find  the configuration file where I have to define the ne accumulate function:
drools.accumulate.function.calculateCertainty = org.drools.base.accumulators.NewAccumulateFunction

regards
Thomas


   Or an accumulate function (as long as all you objects implement a commong
interface):

rule "overall certainty"
when
   $cert : Number() from accumulate(
             $f : CertaintyFacts(  ),
             overallCertainty( $f ) )
then
   // do something with $cert
end

   Implement your own formula inside overallCertainty function .

   []s
   Edson



--
Edson Tirelli
JBoss Drools Core Development
JBoss, a division of Red Hat @ www.jboss.com