Re: First R2RML Syntax Suggestions

On 20.01.2010 7:58, ashok malhotra wrote:
> Question: If the 'class' parameter is omitted, what class do the
> instances belong to?

RDF does not require, that every entity belongs to a class, so we should 
not force people to do so.
In certain cases you also might want to create the class membership 
dynamically from a column in the DB, e.g.:

R2RMap("SELECT id, point, category AS 'rdf:type'");

In that case each instance would become member of a class obtained from 
the category column.


Received on Wednesday, 20 January 2010 19:41:52 UTC