Introduce a datatype for RFC6570 IRI templates

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Introduce a datatype for RFC6570 IRI templates #17

Closed lanthaler closed 9 years ago

lanthaler commented 10 years ago

_This was proposed by @rubenverborgh on the mailing list:_

No, I'm not aware of any type representing RFC6570 IRI templates and didn't see the need to complicate Hydra by defining one :-)

It's not as much about complicating as about being exact. The thing is not a string, it's an RFC6570 template. Please seize this opportunity :-)

Note that this even enables future extensibility automatically. If RFC25000 suddenly comes up with another template, it can be supported out of the box:

<x> hydra:template "old-template"^^hydra:rfc6570Template.
<x> hydra:template "new-template"^^rfc25000:template.

So the same resources can have multiple templates in different standards. That's extensibility.

akuckartz commented 10 years ago

This W3C Recommendation seems to be the the most relevant specification for creating a new datatype:

XML Schema Part 2: Datatypes http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/

And this W3C Working Group likely is also relevant:

This document addresses three questions left unanswered by these Recommendations: Which URIref should be used to refer to a user defined datatype? Which values of which XML Schema simple types are the same?

XML Schema Datatypes in RDF and OWL http://www.w3.org/TR/swbp-xsch-datatypes/

lanthaler commented 10 years ago

PROPOSAL: Introduce a datatype for RFC6570 IRI templates, but don't change the range of hydra:template. Update the Hydra JSON-LD context to type-coerce template automatically.