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RE: [API] Resuming API Work : DDRPropertyValue (including enumerations)

From: Rhys Lewis <rhys@volantis.com>
Date: Tue, 11 Dec 2007 04:54:36 -0700 (MST)
To: "'Jo Rabin'" <jrabin@mtld.mobi>, <public-ddwg@w3.org>
Message-ID: <001f01c83bed$1efaa5d0$8c1e140a@volantisuk>

Hello Jo,

I'm sure that I don't have all the CSS ones in the ontology. However,
adding whatever you'd like to see there is pretty straightforward. Some of
the ones that are there are based on CSS.

To satisfy the good (and I'm hoping less mobility-challenged) Dr.
Hanrahan, it would be nice to get agreement on conversion factors too,
where appropriate. I'll confess to having used the Google calculator up
until now.

Is there a list of units that DD needs anywhere yet?

Best wishes
Rhys

> -----Original Message-----
> From: public-ddwg-request@w3.org
> [mailto:public-ddwg-request@w3.org] On Behalf Of Jo Rabin
> Sent: 11 December 2007 11:40
> To: public-ddwg@w3.org
> Subject: RE: [API] Resuming API Work : DDRPropertyValue
> (including enumerations)
>
>
> CSS defines a number of units, are they sufficient for our
> purposes, and are they included in the ontology?
>
> Jo
>
>
> > -----Original Message-----
> > From: public-ddwg-request@w3.org
> [mailto:public-ddwg-request@w3.org]
> > On Behalf Of Rhys Lewis
> > Sent: 11 December 2007 11:36
> > To: 'Rotan Hanrahan'; 'Josť Manuel Cantera Fonseca';
> > public-ddwg@w3.org
> > Subject: RE: [API] Resuming API Work : DDRPropertyValue (including
> > enumerations)
> >
> >
> > Hello Rotan,
> >
> > The ontology currently captures an abbreviation for each
> unit and a name.
> > Both are effectively US English currently.
> >
> > Internationalization of those properties would be
> accomodated in the
> > ontology. I think your suggestion of delegating this kind
> of issue to
> > the ontology is a really good one. It illustrates one of
> the reasons
> > for creating the ontology.
> >
> > > -----Original Message-----
> > > From: public-ddwg-request@w3.org
> > > [mailto:public-ddwg-request@w3.org] On Behalf Of Rotan Hanrahan
> > > Sent: 11 December 2007 11:16
> > > To: Josť Manuel Cantera Fonseca; public-ddwg@w3.org
> > > Subject: RE: [API] Resuming API Work : DDRPropertyValue
> (including
> > > enumerations)
> > >
> > >
> > > Regarding [1], I notice the getUnits() method returns a
> String. This
> > > means that all units will have to have a normative textual
> > > identifier. This could be a URI or an agreed short name.
> If we use a
> > > short name, we could run into trouble because some common
> units have
> > > variations in their names. Consider the millimetre, which has an
> > > American spelling of millimeter, and a common abbreviation of mm.
> > > Then there's pixel, which has the same short name in all
> > > English-speaking regions but has a variety of
> abbreviations like p,
> > > px, pix. Even if we choose to use URIs, not all units
> have an agreed
> > > URI. Perhaps these are things that the UWA ontology
> should capture,
> > > and the DD units can simply point to the right place in the
> > > ontology?
> > >
> > > ---Rotan
> > >
> > > -----Original Message-----
> > > From: public-ddwg-request@w3.org
> > > [mailto:public-ddwg-request@w3.org] On Behalf Of Josť
> Manuel Cantera
> > > Fonseca
> > > Sent: 10 December 2007 13:39
> > > To: public-ddwg@w3.org
> > > Subject: [API] Resuming API Work : DDRPropertyValue (including
> > > enumerations)
> > >
> > >
> > > Hi,
> > >
> > > The discussion now need to turn on the DDRPropertyValue
> object and
> > > its methods.
> > >
> > > Please take a look at the current version of this class
> in [1]. The
> > > DDRPropertyValue class is a subclass of DDRValue [2]
> which actually
> > > has all the methods needed to retrieve a property value. It is
> > > important to note that a DDRPropertyValue references the aspect /
> > > component to which the property value applies, which is useful in
> > > those cases where multiple DDRPropertyValues are obtained
> > >
> > > Also it is important to have a look at the way that enumerated
> > > values are treated and how this would be used to query
> about thinks
> > > like image
> > > formats:
> > >
> > > DDRPropertyValue value =
> > > ddr.getPropertyValue("supported_image_formats",key);
> > >
> > > DDREnumeration enumeration = value.getEnumeration();
> > >
> > > if(enumeration.contains("cv:gif")) {
> > >     System.out.println("GIF format is supported for images"); }
> > >
> > >
> > > Please have a look at this proposal and send comments, it is very
> > > important to make progress in the API
> > >
> > > Best Regards
> > >
> > > [1]
> > > http://www.w3.org/2005/MWI/DDWG/drafts/api/java/DDR-API-Minima
> > l/doc/org/w3c/ddr/DDRPropertyValue.html
> > > [2]
> > > http://www.w3.org/2005/MWI/DDWG/drafts/api/java/DDR-API-Minima
> > > l/doc/org/w3c/ddr/DDRValue.html
> > >
> > >
> > >
> >
>
>
>
Received on Tuesday, 11 December 2007 11:54:54 UTC

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