What do you mean by "facts in other plugins"?
If your facts are loaded by a different classloader hierarchy, you need
to set the facts classloader in:
PackageBuilderConfiguration.setClassLoader(); // to compile the rules
RulebaseConfiguration.setClassLoader(); // to create the rulebase and run it
[]s
Edson
2008/12/2 keithnielsen <[EMAIL PROTECTED]>
>
> Further testing shows that while the rules engine can locate facts from
> other
> plug-ins (facts located in the same plugin as the rules engine work fine,
> but not realistic to expect that all facts will be co-located in the same
> plugin), an attempt to reconstitute them using the ByteArrayClassloader
> will
> not work. Has anyone been successful using facts located in other plug-ins?
> I am using Drools 5.M2 with Eclipse 3.4.
>
>
>
> keithnielsen wrote:
> >
> > I have the following rule:
> >
> > rule "Retrieve CID Presentation Model"
> > ruleflow-group "RetrieveCID"
> >
> > when
> >
> >
> CIDPresentationModel($cidValue:cidValue,$cidExpirationDate:expirationDate)
> > then
> > boolean cidResult =
> > cidService.verifyCIDIsValid($cidValue,$cidExpirationDate);
> > CIDResult result = new CIDResult(cidResult);
> > insert(result);
> > System.out.println("Executing: Retrieve CID Presentation
> Model");
> > end
> >
> > Deep in the bowels of drools there is a call to
> > ClassFieldAccessorFactory.getClassFieldReader where it attempts to create
> > a class using the byte array classloader, i.e. final Class<?> newClass =
> > byteArrayClassLoader.defineClass(className, bytes,PROTECTION_DOMAIN). Its
> > at this point that a NoClassDefFoundError on the
> > BaseObjectClassFieldReader. From what I understand of
> NoClassDefFoundError
> > it can result when there are two sources of the same class in the
> > classpath or if there is some reference from the class resulting in the
> > error to another class that can not be resolved. It only appears in
> > situations where there is fields involved. It doesnt seem to matter how
> > simple the object is, the minute I try to use field assignment it throws
> > an error.
> >
> > The rules engine is running as an Eclipse plug-in.
> >
>
> --
> View this message in context:
> http://www.nabble.com/NoClassDefFoundError%3A-BaseObjectClassFieldReader-tp20802217p20806634.html
> Sent from the drools - user mailing list archive at Nabble.com.
>
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>
--
Edson Tirelli
JBoss Drools Core Development
JBoss, a division of Red Hat @ www.jboss.com
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