> Hope all is well.
Yah, finally got drools compiling against the latest Maven.
> Quick question - where's the package fr.dyade.jdring from?
www.dyade.fr, somewhere, I'd guess. ;)
It's a scheduler. And I think we're not using it anymore, since
JDK 1.3 has a lightweight scheduler built in. Or, we may go to
quarts (quarts.sf.net, I think).
Though, jdring is the basis for some commercial scheduler out there.
Anyhow, if we're using it, it's for the <duration/> marker.
> I've finally got chance to started looking at drools+rdf, and it's come
> about in quite a nice way, because it's driven by a real application need.
Cool!
> I've just started have a proper look at my app's vocabulary stuff, and
> basically I need a way of maintain sets of terms which (loosely) correspond
> to RDF resources and properties. From the RDF point of view, these terms are
> classes/instances taken from RDF Schema which define the characteristics and
> constraints of the terms. So one thing I need is a way of checking that
> terms obey their constraints - enter drools. I also need a way of picking
> out terms in a query kind of way, which I think will also be a task for
> drools.
>
> It's a bit confusing, because RDF(S) uses OO-like ideas such as subclass,
> but the semantics aren't the same as OO.
Okay, today I'll read the RDF specs so that I might understand this stuff.
Is RDF related to RSS at all? I seem to see them together. And my blogs
will produce an RSS from the front-page.
> I have been using the Jena RDF toolkit/API, which is very nice but because
> my app can't be completely tied to the RDF model, I'm having to look at
> these things as if Jena didn't exist. So today's task (I think) will be
> creating a set of Java classes that correspond to aspects of RDF, and trying
> to express the constraints in a drools-friendly fashion - which I suppose
> will end up as a semantic module. If and when I've got this sorted, I'll
> have a look at a drools+RDF module <-> Jena bridging.
Cool. Definitely keep me in the loop.
-bob
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