Right now, I'm mostly playing with Jersey and Jena for fun, but if something
comes out of it, I'll let you know :)
So far I haven't exposed a direct SPARQL interface. It's probably more
interesting to expose the RDF, to enable federated SPARQL queries of the
data. The queries are used internally, and I'm returning the results as
JSON/XML/RDF (e.g. as input to jMaki components).
I looked at the caboto project a bit, looks interesting :). Your Jena model
provider is pretty much identical to one I wrote. However, I noted one big
difference, your provider uses MessageBodyWriter<Object>. I tried using
MessageBodyWriter<Model> (where Model is a java interface), but jersey
wouldn't recognize it as a usable provider for my Jena models. What is the
"proper" way of writing providers for interfaces? Is there any other way
than using <Object>, and make a dynamic check in isWriteable? My strong
typing "instincts" flinch at doing that ;-).
On Fri, Aug 15, 2008 at 12:50 PM, Mike Jones <mike.a.jones_at_gmail.com> wrote:
> I'd be very interested as well Daniel :-)
>
> I'm involved in a project that is using Jersey as a front-end to an
> RDF store although it doesn't allow direct SPARQL queries at the
> moment - although results are returned as RDF/XML, N3 or JSON. I'm
> using Jena SDB for the backend and Jena ARQ for the querying. Project
> is still in the early stages ... http://code.google.com/p/caboto/.
> Boring blog entry http://chillyinside.com/blog/?p=49
>
> Cheers
> Mike
>
> 2008/8/15 Paul Sandoz <Paul.Sandoz_at_sun.com>:
> > Hi Daniel,
> > Glad things are resolved. I thought NB would handle the dependencies, if
> you
> > you declare there is a dependence in the project properties. I know that
> if
> > using maven then unfortunately dependencies are not currently managed,
> which
> > is a real pain when there are lots of modules.
> > SPARQL queries eh? :-) if you blog about anything perhaps you can send a
> > link to the list.
> > Paul.
> > On Aug 15, 2008, at 2:13 AM, Daniel Larsson wrote:
> >
> > It seems to have been a syncing problem between my servlet and my jar
> > (containing the provider among other things) running in the glassfish
> > server. After rebuilding everything from scratch, and redeploying, it
> seems
> > to work again. I assumed NetBeans would handle such dependencies, but
> > apparently not.
> > Thanks for the help, Paul :)
> >
>
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