Hi Arif, DESCRIBE in D2R always returns only a description of a single resource. Other resources (like the MD_Identifiers in your example) are only linked to.
Best, Richard On 28 Apr 2011, at 19:48, <[email protected]> <[email protected]> wrote: > Hi Everyone, > > I was wondering if it would be possible to output the following nested RDF > structure using D2RQ: > > <rdf:RDF> > <acrid:CW_Station > rdf:about="http://www.cru.uea.ac.uk/so/station/CW_Station/cru/1001";> > <om:shape > >010100000000000000000052400000000000004140</om:shape> > <iso-mi:identifier> > <iso-m:MD_Identifier > rdf:about="http://www.cru.uea.ac.uk/identifier/10010-3";> > > <dc:identifier>010010</dc:identifier> > <dc:title>Jan > Mayen</dc:title> > </iso-m:MD_Identifier> > </iso-mi:identifier> > <iso-mi:identifier> > <iso-m:MD_Identifier > rdf:about="http://www.cru.uea.ac.uk/identifier/10010-1";> > > <dc:identifier>010010</dc:identifier> > > <dc:description>local id</dc:description> > </iso-m:MD_Identifier> > </iso-mi:identifier> > <acrid:elevation > rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal";> > 54.6 > </acrid:elevation> > <acrid:country > rdf:datatype="http://www.w3.org/2001/XMLSchema#string";>Norway</acrid:country> > </acrid:CW_Station> > </rdf:RDF> > > I have tried running a SPARQL describe query against the attached D2RQ map > file but the I only get references to the MD_Identifier resources as follows: > > <rdf:RDF > xmlns:iso-mi="http://www.cru.uea.ac.uk/cru/projects/acrid/metadata-2#"; > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; > xmlns:om="http://www.cru.uea.ac.uk/cru/projects/acrid/om#"; > xmlns:iso-m="http://www.cru.uea.ac.uk/cru/projects/acrid/metadata#"; > xmlns:owl="http://www.w3.org/2002/07/owl#"; > xmlns:dc="http://purl.org/dc/terms/"; > xmlns:acrid="http://www.cru.uea.ac.uk/cru/projects/acrid/workflows#"; > xmlns:xsd="http://www.w3.org/2001/XMLSchema#"; > xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"; > xmlns:map="file:///C:/Users/as89/Desktop/SW_Projects/d2rq-0.7/acrid.n3"> > <acrid:CW_Station > rdf:about="http://www.cu.uea.ac.uk/so/station/CW_Station/cru/1001";> > <om:shape>010100000000000000000052400000000000004140</om:shape> > <acrid:elevation rdf:datatype="http://www.w3.org/2001/XMLSchema#float"; > >54.6</acrid:elevation> > <acrid:country>Norway</acrid:country> > <iso-mi:identifier > rdf:resource="http://www.cu.uea.ac.uk/identifier/1001-3"/> > <iso-mi:identifier > rdf:resource="http://www.cu.uea.ac.uk/identifier/1001-1"/> > </acrid:CW_Station> > </rdf:RDF> > > My SPARQL query is: DESCRIBE > <http://www.cu.uea.ac.uk/so/station/CW_Station/cru/1001> > > I am sure I am missing something obvious here. > > Any help would be greatly appreciated. > > Best regards > Arif > > > > ****************************************************************** > Dr Arif Shaon > > Software Research Scientist, > Scientific Information Group, > E-Science Centre, Science and Technology Facilities Council, > Rutherford Appleton Laboratory Chilton, Didcot, OXON, OX11 0QX, UK > tel: +44 1235 448178 > [email protected] > > > -- > Scanned by iCritical. > > > <acrid_d2rq.txt>------------------------------------------------------------------------------ > WhatsUp Gold - Download Free Network Management Software > The most intuitive, comprehensive, and cost-effective network > management toolset available today. Delivers lowest initial > acquisition cost and overall TCO of any competing solution. > http://p.sf.net/sfu/whatsupgold-sd_______________________________________________ > d2rq-map-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/d2rq-map-devel ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ d2rq-map-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/d2rq-map-devel
