Hi Ben, Thanks for digging into this. Reading through your comments on the tracker, it seems that in order for risearch to truly support CONSTRUCT the way it was intended in the SPARQL spec, it would have to a) allow you to omit the FROM part, and b) allow SPARQL as a "triple" query language (so the result can come back as RDF).
Both of these would need Trippi's Mulgara connector to be updated. I'm not sure how difficult that would be offhand, but I'm sure it's doable. Related, I've submitted the following, which came out of our "Improving RDF support in Fedora" discussion a couple weeks ago: "Resource Index: SPARQL Protocol Support" http://fedora-commons.org/jira/browse/FCREPO-553 Food for thought: If FCREPO-553 existed, could we deprecate the "risearch" interface? - Chris On Thu, Oct 22, 2009 at 11:49 AM, Benjamin Armintor <[email protected]> wrote: > I took a look at this on a Fedora 3.2.1 installation, and was able to > get the tuples query to execute correctly by making 2 changes to the > query in the ticket: > 1. including a FROM clause in the SPARQL query > 2. angle-bracketing the dc uris > > The Mulgara REST api lets you indicate a default graph if no FROM > clause is given, but I don't think Trippi does. > > As far as the triples query goes: Trippi only supports SPO queries, > apparently. Details on that in JIRA. > > The issue should probably be changed to indicate the problem is with > triple query language support in Trippi; the tuples query is (I think) > just a problem of documentation. > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/devconference > _______________________________________________ > Fedora-commons-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/fedora-commons-developers > ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Fedora-commons-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/fedora-commons-developers
