I don't think it makes sense to assert null into working memory... null
does not matches any object type anyway...
Maybe what you want to do is to check for the non-existance of a fact:
when
not Building()
then
...
end
So, don't ever assert null into working memory.
Edson
2007/8/14, Stuart Moffatt <[EMAIL PROTECTED]>:
>
> The incoming building was initialized like this:
>
> Building building = null;
> FactHandle buildingFact = businessRuleSession.insert( building );
> businessRuleSession.setFocus("validate delete or get building");
> businessRuleSession.fireAllRules();
>
> Can drools test for this null building?
> What should the rule look like?
>
> rule "building is null"
> agenda-group "validate delete or get building"
> salience 10
> when
> boException : BOException()
> Building() == null /* this is the problem here -- not sure what
> this should look like */
> then
> boException.setCode("BO-0008");
> end
>
>
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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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