Re: adding xlink:type attribute

Hi Benno,

I've updated our main static catalogs to include xlink:type="simple". 
Haven't dealt with our generated catalogs yet.

Since all the uses of xlink in the InvCatalog schema at this point are 
simple xlinks, I was thinking it would be a convenience to provide a 
default value for xlink:type. That way all existing catalogs would 
automatically be complient with the XLink spec. At least they would look 
that way if the application was paying attention to the DTD/XSD. As with 
most default values in XML docs, I think explicitly including 
xlink:type="simple" in our catalog documents is the way to go. Just 
hoping to buy us some pain free complience.

I was just looking at your catalog at

http://iridl.ldeo.columbia.edu/SOURCES/thredds.xml

I see the xlink:type attributes but not the CSS stuff (<?xml-stylesheet 
type="text/css" href="threddsstyle.css" ?>). Do you have an example that 
does include that? Also, can you point me to your threddsstyle.css so I 
can take a look at it?

Thanks,

Ethan



Benno Blumenthal wrote:

> Ethan Davis wrote:
>
> > Hi Benno,
> >
> > I will go through our catalogs and add the xlink:type attribute. I'll 
> > also add it to our catalog generation tools.
>
>
> That would be great.
>
> > In the InvCatalog 0.6 spec xlink:type had a default value of 
> > "simple". Looks like that got dropped in 1.0. Does adding this as a 
> > default seem like a good idea? Or would requiring it but no default 
> > value be preferable?
> my reading of xlink is that xlink:type is required, and the way we are 
> using xlink its value is "simple".
> There is no provision for a default value.
>
> The reason for doing this is so that we can build on top of software 
> that already understands xlink, which, if we have not written it, is 
> expecting xlink:type="simple" before processing it.
>
> Benno

--
Ethan R. Davis                                Telephone: (303) 497-8155
Software Engineer                             Fax:       (303) 497-8690
UCAR Unidata Program Center                   E-mail:    address@hidden
P.O. Box 3000
Boulder, CO  80307-3000                       http://www.unidata.ucar.edu/
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