Well, seems the parser is raising the wrong message here... need to fix
that...
But the syntax should be something like:
rule "calculate average"
when
$media : Number( doubleValue > 50000)
from accumulate( Instance( $value : classValue
),
average($value))
then
System.out.println(media );
end
[]s
Edson
2007/9/6, Isabelle Hupont <ihupont(a)ita.es>:
>
>
> Hi!
>
> I'm integrating Weka with Drools v.4 and I have a parsing error while
> trying
> to read the following DRL rule:
>
> rule "calculate average"
> when
> $inst : Instance()
> $media : Double(double value > 50000)
> from accumulate($value : inst.classValue()
> average($value))
> then
> System.out.println(media );
> end
>
> I have the following error:
>
> org.drools.compiler.DroolsParserException: Unknown error while parsing.
> This
> is a bug. Please contact the Development team.
> at org.drools.compiler.DrlParser.compile(DrlParser.java:180)
> at org.drools.compiler.DrlParser.parse(DrlParser.java:61)
> at
> org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java
> :158)
> at com.sample.DroolsTest.readRule(DroolsTest.java:67)
> at com.sample.DroolsTest.main(DroolsTest.java:24)
>
> What I am doing wrong?
> Thx
> --
> View this message in context:
>
http://www.nabble.com/parsing-error-using-accumulate-tf4390367.html#a1251...
> Sent from the drools - user mailing list archive at
Nabble.com.
>
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>
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>
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @
www.jboss.com
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