A few questions

[Matthew Graham]

Hi,

I have made these comments previously but I will reiterate them here:

> > 2.) We said it would be XPath.  How do we want to handle Namespaces?  Are
> > we going to use predefine prefixes such as "vs:" for some of our
> > extenstions meaning the data service namespace.
> 
> This is a detail we have not addressed.  Our options are: 
> 
>   1. we do things the proper XML way:  the ADQL query itself defines the 
>      prefixes it will use.  
> 
>   2. we mandate the use of predefined prefixes:
> 
>         vr:interface/vs:resultType='text/xml+votable'
> 
>   3. we just not included (in this round) namespace prefixes in our 
>      xpath-based queries, e.g. 
> 
>         interface/resultType='text/xml+votable'
> 
> 2. and 3. are intended to be simplifications that might be make things 
> easier.  If not, we should go with 1.

According to the current shema (v0.10), I can have vr:facility and
vs:facility so dropping namespaces will no longer allow me to distinguish
between them. Also you still need to handle the xsi namespace for
the xsi:type attribute.

BTW if [] are not allowed, what is the syntax for doing type searches:

/resource[@xsi:type = 'ConeSearch']/...  is not allowed 

/resource/@xsi:type = 'ConeSearch'/... is not the same

	Cheers,

	Matthew