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.
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Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President& CEO
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