Modeling over-riding inheritance in a triple store

• From: James Rothering <jr@jamesrothering.com>
• Date: Thu, 02 Aug 2012 13:54:26 -0700
• To: semantic-web@w3.org
• Message-ID: <133871c362cc87c3021de912d3b18725@smtp.hushmail.com>

Is is possible to implement an inheritance hierarchy in a SPARQL query?
In other words, is it possible to select all from a parent type, but
overriding from a child type wherever an entry exists?

I.e., given this data:
	ex:parent001  	rdf:type  	ex:"Parent"
			ex:widgetName	ex:"test"
			ex:hasChild	ex:"child001"
			
	ex:child001	ex:widgetName	ex:"over-ridden widget".

Can I craft a select {?s ?p ?o} that will leave out the link between
parent and child, yet return the over-ridden values of the predicates?
i.e., that will return:
	ex:parent001  	rdf:type  	ex:"Parent"
			ex:widgetName	ex:"over-ridden widget".

Regards,

James

Received on Thursday, 2 August 2012 20:54:52 UTC