- From: Richard Cyganiak <richard@cyganiak.de>
- Date: Mon, 26 Sep 2011 08:38:45 +0100
- To: Ahmed Bassiouni <ahmedbassi@gmail.com>
- Cc: public-rdb2rdf-comments@w3.org
Hi Ahmed, See the Note in this section here for an answer: http://www.w3.org/TR/2011/WD-r2rml-20110920/#typing Best, Richard On 26 Sep 2011, at 03:28, Ahmed Bassiouni wrote: > Hello, > > During the last couple of days, I started and sort of finished some kind of r2rml representation in Python. I can't say it is an exact r2rml processor implementation. However, I tried to follow the r2rml document during design. Disclaimer: I am not a programmer by profession. > > Something I have noticed: is that the RDF types of a triples map (the "classes"), can only be constants. > > What happens in the scenario where you want a dynamic class, for example column-based. Take this scenario: > > Table Employees: > Emp_ID: 1234 > EMP_Name: "John Smith" > EMP_Pay: "PartTimeEmployee" > > You want to assign the triples map two classes: one is Employee (constant) and the other is PartTimeEmployee (derived from a column). > > So I was wondering if you did not have this scenario in mind, or was the design intentional with a dynamic RDFtype assigned only through a separate predicate-object map?? > > Cheers, > Ahmed Bassiouni >
Received on Monday, 26 September 2011 07:39:15 UTC