Ah I think I understand. So using /about/ is really not appropriate for the sort-of on-demand generation of rdf that i'm doing. in that http://dbtune.org/cmn/data/<composer> redirects to a sparql query for describing <composer> and there wouldn't be a foaf:primaryTopic property in that result. so to use /about/ i would want to generate static rdf files (ie http://dbtune.org/cmn/data/WAGN.rdf) and host them? is this what is done on dbpedia? is there a fancy programmatic way of doing this from the rdf store?
-kurt On Thu, Feb 5, 2009 at 6:08 PM, Kingsley Idehen <kide...@openlinksw.com> wrote: > On 2/5/09 12:31 PM, Kurt J wrote: >> >> Hi, >> >> So far i've been totally unsuccessful using the /about/ features of >> virtuoso (which seem _really_ cool). for example using >> /about/html/<valid resource uri definitely in my datastore> only >> returns information about the stylesheet. i.e. >> >> xhv:stylesheet http://dbtune.org/cmn/resource/style.css >> >> i've added SPARQL user to SPARQL_UPDATE and SPARQL_SPONGE roles >> >> i've done grant execute on DB.DBA.RDF_SPONGE_UP to "SPARQL"; >> >> any ideas what could be going wrong? perhaps some other magical grant >> execute command? >> >> cheers, >> kurt j >> > > Kurt, > > Remember, "/about/" is basically an entry point for using the REST interface > to the Virtuoso Sponger. It's focus is: Describing Information Resources, > and then projecting the information resource description using > "/about/<format>" directive. Thus, if the information resource doesn't have > a "foaf:primarytopic" association with a least one Entity URI that isn't of > type "Document", you will get "best effort" description of a page. To > understand this further, click on the ODE link in the page footer, you will > notice that if the data provider exposes RDF you will see a the RDF graph. > > I am inclined to call this the "Give me One URI" principle re. information > resources and the Linked Data Web. > > Let me know how you get on. > > BTW - http://twitter.com/kidehen will expose a boat load of "/about/" usage > examples. > >> >> ------------------------------------------------------------------------------ >> Create and Deploy Rich Internet Apps outside the browser with >> Adobe(R)AIR(TM) >> software. With Adobe AIR, Ajax developers can use existing skills and code >> to >> build responsive, highly engaging applications that combine the power of >> local >> resources and data with the reach of the web. Download the Adobe AIR SDK >> and >> Ajax docs to start building applications >> today-http://p.sf.net/sfu/adobe-com >> _______________________________________________ >> Virtuoso-users mailing list >> Virtuoso-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >> >> > > > -- > > > Regards, > > Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen > President& CEO > OpenLink Software Web: http://www.openlinksw.com > > > > >
