Re: [Xmldb-org-general] XAPI and XInclude

[Ronald B. <rpb...@rp...>]

Finally had time to read this...

Per Nyfelt wrote:

> Hi Travis,
> 
> onsdagen den 16 mars 2005 18.26 skrev Travis Stevens:
> 
>>I would like to address the relationship of the XAPI with the
>>Xinclude[1] specification.  XInclude is a specification for merging XML
>>documents.  The basic example is including an XML document at a given URL.
>>
>><?xml version='1.0'?>
>><document xmlns:xi="http://www.w3.org/2001/XInclude">
>>  <p>120 Mz is adequate for an average home user.</p>
>>  <xi:include href="disclaimer.xml"/>
>></document>
>>
>>One should be able to specify a resource in an XML:DB database in a
>>standard way.   A simple idea would be to reference the resource by ID:
>><xi:include
>>href="xmldb:vendorx://db.xmlmovies.com:2030/movies?resourceId=5" />.
> 
> 
> Looks good to me.

+1

>>Should xpath and xquery also be allowed as part of the URI?
> 
> 
> XQuery is not yet fully integrated in the API. I did an intial attempt heavily 
> inspired by the eXists implementaiton but there is no reference 
> implementation yet and the whole thing needs some refinement before it is 
> ready. I think we need to finalize how XQuery works with the API before 
> extending your basic idea of referencing a' la xinclude to also include 
> xquery. I see nothing bad with allowing xpath expressions as part of the URI 
> though.

I'm less sure of this. XInclude already allows XPointer addressing into 
the included document, so XPath/XQuery seems a bit too much. It might 
make more sense to have a URI-based version of XAPI, which would then 
use XQuery or XPath. This could then be used in an XInclude statement.

-- Ron