[rules-users] getting details of facts triggering rules

[Archie Russell]

Can I get the "drools" variable from my java code?   Or is this only
available inside
rules?

A


On Thu, Feb 17, 2011 at 1:26 AM, Wolfgang Laun <wolfgang.laun at gmail.com>wrote:

> This may be more conveniently done from an event listener but
> drools.getActivation() should give you the Activation. Then you get
> the Collection<FactHandle>.
>
> For each of them,
> org.drools.runtime.KnowledgeRuntime.getObject(
> org.drools.runtime.rule.FactHandle )
> gives you the fact objects that participates.
>
> You can also access bindings:
>  List<String> declIds = activation.getDeclarationIDs();
>  Object declVal = activation.getDeclarationValue( declId );
> Be careful, things may have passed away, i.e., you can get nulls.
>
> -W
>
> 2011/2/16 Archie Russell <archier at gmail.com>:
> >
> > Hi,
> > I've tried to figure this out but haven't been able to.
> > How can I, from the RHS, figure out the details of what triggered a rule.
> > I can access the facts individually by name,  but how do I do it in a
> > generic fashion that would work in the RHS of any rule?
> > I am using decisiontables and want to be able to have a function that is
> > something like printTriggeringDetails()
> > I came across drools.getTuple but am not sure if that's the correct path
> > to go on.   From there I get InternalFactHandles but don't know how to
> turn
> > those into human-readable facts.
> > Thanks for any help,
> > Archie
> >
> > _______________________________________________
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> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
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