- From: Richard Cyganiak <richard@cyganiak.de>
- Date: Fri, 29 Jul 2011 20:09:33 +0100
- To: Juan Sequeda <juanfederico@gmail.com>
- Cc: public-rdb2rdf-wg@w3.org
On 29 Jul 2011, at 15:19, Juan Sequeda wrote: > Could you please add this example (or something similar) to the specs. I think it would be really useful. Done: http://www.w3.org/2001/sw/rdb2rdf/r2rml/#example-m2m I also broke up the example section into several smaller subsections to allow easier linking to specific parts of the example. It raises a question though: Why does the example in 2.5 use a referencing object map, while 2.6 just directly uses the same templates as the referenced tables? I don't know how to explain that well. > ok. but if I'm not wrong, it's not explicit in the spec that you can give a subjectMap and objectMap a URI. or is it? I tried to clarify this a bit in 4.1 http://www.w3.org/2001/sw/rdb2rdf/r2rml/#vocabulary [[ An R2RML mapping graph […] may assign IRIs or blank node identifiers to any mapping component in order to enable re-use of mapping components within the mapping graph. For example, an IRI that represents a subject map may be used as the subject map of multiple triples maps; and may even be used as an object map of another triples map if it has the right properties. ]] I've also raised two issues regarding syntactic sugar: http://www.w3.org/2001/sw/rdb2rdf/track/issues/59 http://www.w3.org/2001/sw/rdb2rdf/track/issues/60 Thanks for asking the question in the first place Juan -- it helps improving R2RML. Best, Richard
Received on Friday, 29 July 2011 19:10:12 UTC