- From: Chimezie Ogbuji <ogbujic@ccf.org>
- Date: Mon, 19 Apr 2010 17:33:15 -0400
- To: "Andy Seaborne" <andy.seaborne@talis.com>, "SPARQL Working Group" <public-rdf-dawg@w3.org>
Comments below: On 4/19/10 5:40 AM, "Andy Seaborne" <andy.seaborne@talis.com> wrote: >> However, section 5.4 of HTTP Update [1] says, >>> The HTTP GET method SHOULD be used to retrieve a graph representation of the >>> networked RDF knowledge identified by the Request-URI. >>> >>> This is equivalent to the following SPARQL query: >>> >>> CONSTRUCT { ?s ?p ?o } WHERE { GRAPH<graph_uri> { ?s ?p ?o } } > > I'm a bit confused here as to the intent in SPARQL HTTP Update: the > section "Graph Identification" just talks graph identification, with two > forms, direct and indirect. It does not talk about graph stores Taking a look at the informal definition of a Graph Store from the SPARQL Update editor's draft: [[[ A Graph Store is a repository of RDF graphs managed by a single service. Like an RDF Dataset <http://www.w3.org/TR/rdf-sparql-query/#sparqlDataset> operated on by SPARQL, a Graph Store contains one unnamed graph and zero or more named graphs. Unlike an RDF dataset, named graphs can be added to or deleted from a graph store. A Graph Store need not be authoritative for the graphs it contains. ]]] It looks like this can be re-used verbatim - i.e., the idea of a Graph Store seems to work as is for both protocols. There is a reference to a formal definition later in the document that I cannot find. > or RDF > datasets I could probably just substitute the common 'Graph store' term for ever reference to 'dataset' in the HTTP update specification. > nor define terminology for the first part of an indirect > identification: > > http://host/thing?graph=http://www.example.org/other/graph Beyond re-using the graph store term, what other terminology did you have in mind? The indirect identification portion describes what determines the 'request URI' of the operation, but otherwise, the mechanism is the same. > Elsewhere in the doc itself, there is indirect reference to graph stores > and RDF datasets through the use of SPARQL Update illustrations as above. -- Chime > > Andy > > =================================== P Please consider the environment before printing this e-mail Cleveland Clinic is ranked one of the top hospitals in America by U.S.News & World Report (2009). Visit us online at http://www.clevelandclinic.org for a complete listing of our services, staff and locations. Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you.
Received on Monday, 19 April 2010 21:33:57 UTC