Re: [bdbxml] Namespaces in metadata

Mike,

I did not run the Perl script you sent, but the following is a small
script that can be run in the dbxml shell that does what you
are talking about, and works.  It just verifies that you can
query for user-defined metadata.  You might check to be sure
there is not another error in your Perl script or original
XQuery expression.

You can run this by saving it to a file, and running
     dbxml -s <filename>
or run it directly from the shell using the "run" subcommand.


createContainer ""
putDocument foo <root/>
setMetaData foo X A string a
setMetaData foo Y B string b
setNamespace x X
setNamespace y Y
query "for $doc in collection('')
       return dbxml:metadata('dbxml:name',$doc)"
print
query "for $doc in collection('')
       return dbxml:metadata('x:A',$doc)"
print
query "for $doc in collection('')
       return dbxml:metadata('y:B',$doc)"
print


George

On Jun 15, 2005, at 8:37 PM, Mike Trotman wrote:

> I am using the Perl interface to DbXML.
>
> I can retrieve document metadata in specific namespaces OK using
> getMetaData('URI','attName',$value);
>
> BUT
>
> when I try this in XQuery - it only seems to work for the dbxml
> namespace.
>
> Below is an example program that demonstrates this not working.
> Apologies for the length - it was the shortest self-contained  
> example I
> could come up with that worked.
> In the script I create a simple document,
> then
> setMetaData('X','A','a');
> setMetaData('Y','B','b');
>
> but when I use the following context:
>
> $context = $mgr->createQueryContext();
> $context->setNamespace('x'     => 'X');
> $context->setNamespace('y'     => 'Y');
>
> and try to retrieve values in XQuery
>
> let $XA := dbxml:metadata("x:A",$doc/*[1])
> let $n := dbxml:metadata("dbxml:name",$doc)
> let $YB := dbxml:metadata("y:B",$doc)
>
> only the document name in $n has content;
>
> There may well be something stupid I am doing - so any help would be
> greatly appreciated.
>


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