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[higgins-dev] JNDI Context Provider and HOWL 1.1
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It appears that the JNDI context provider in Higgins 1.1 M2 still follows
HOWL 1.0. What are the tasks involved in making it conform to HOWL 1.1?
Thanks,
Best regards,
Rajalakshmi Iyer
Paul Trevithick
<paul@socialphysi
cs.org> To
Sent by: higgins-dev
higgins-dev-bounc <higgins-dev@xxxxxxxxxxx>
es@xxxxxxxxxxx cc
Subject
07/08/2008 07:47 Re: [higgins-dev] Questions wrt
AM HOWL 1.1
Please respond to
"Higgins \(Trust
Framework\)
Project developer
discussions"
<higgins-dev@ecli
pse.org>
Hi Rajalakshmi,
See inline below...
On 7/7/08 1:54 AM, "Rajalakshmi S Iyer" <iyer_rajalakshmi@xxxxxxxxxx>
wrote:
Hi,
I have been going through HOWL 1.1 and here are some questions wrt
the
same:
HOWL 1.1 defines new OWL classes like Person, Group etc. Is it
necessary
that context providers who conform to HOWL must derive their
implementations of Persons and Groups from the HOWL 1.1 Person and
Group?
>> Yes they should.
And if so, does it mean that one could query for persons using
http://www.eclipse.org/higgins/ontologies/2008/6/higgins#Person
across
all context providers?
>>Yes.
HOWL 1.1 does not seem to have the Attribute class that was
present in
HOWL 1.0.
>> Perhaps you are referring to the higgins:attribute property that
was present in HOWL 1.0 and was removed in HOWL 1.1. If so, this was
done to allow developers to reuse existing properties from other
(non-Higgins) OWL, and RDFS vocabularies. The higgins:attribute was
used as the abstract super-property of all higgins-defined
properties—but it was never used directly.
As I understood the CDM, all entities in the context must be
subClassOf &higgins;#Entity and all attributes must be a
subPropertyOf
&higgins;#Attribute. Does this still hold?
>> The first half of what you say holds: all developer-defined
Entities must subclass Entity (or one of its subclasses (e.g Agent,
Person, Group or Organization and soon Policy). The second part is no
longer true —there’s now nothing special about a higgins property
(e.g. higgins:correation) vs. a property from some other namespace
(e.g. foaf:knows).
Thanks,
Best regards,
Rajalakshmi Iyer
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