Scott --

We don't test for this on the return from the extension function.  If
you'd like, I could add it but I, myself, think supporting the
DTMIterator is sufficient.

[EMAIL PROTECTED] wrote:
> 
> > The extension mechanism does not support extensions returning a
> > NodeList
> 
> Actually, I thought it did!  I thought we had an adapter for this.  Am I
> mistaken?
> 
> -scott
> 
> 
>                     Gary L Peskin
>                     <garyp@firste        To:     [EMAIL PROTECTED]
>                     ch.com>              cc:     (bcc: Scott Boag/CAM/Lotus)
>                                          Subject:     Re: DTMNodeList to NodeList 
>error in JAVA Extension usage.
>                     07/30/01
>                     01:11 PM
>                     Please
>                     respond to
>                     xalan-dev
> 
> 
> 
> Bart --
> 
> The proxy mechanism is built into the design of the DTM components.  It
> is something that you get automatically.  You don't need to do anything.
> 
> The extension mechanism does not support extensions returning a
> NodeList, as you have already discovered.  You should just return the
> underlying DTMIterator with the getDTMIterator() call.  For example, if
> you've declared
> 
>   DTMNodeList retval;
> 
> Just return
> 
>   retval.getDTMIterator();
> 
> This should work fine.
> 
> Gary
> 
> "Bart W.Jenkins" wrote:
> >
> > Gary,
> >   First, thanks for being so patient...we are investing heavily in XML /
> XSL
> > and making sure we know this technology thoroughly is critical.  And I
> agree
> > with you...the first form is easier.
> >
> > All right...more questions!
> >
> > Prior to the Xalan versions that use DTM (specifically version 1_2_1),
> > regardless whether my JAVA code returned a nodelist or a nodeset, I could
> > then use the Xpath form we have been discussing:
> >
> > $var/node1/node2/...
> >
> > in my XSL, but when I try this with Xalan 1_2_2_D7, (one that uses DTM),
> I
> > get the following error:
> >
> > XSLT Error (javax.xml.transform.TransformerException): Can not convert
> > #UNKNOWN    (org.apache.xml.dtm.ref.DTMNodeList) to a NodeList!
> >
> > In the docs for version 1_2_2_D7, in the description for DTM, it states:
> > "For the convenience of user-written extensions, a proxy mechanism
> presents
> > the contents of the DTM as a read-only subset of the DOM"
> >
> > How do I make use of this proxy?  My error above suggests that this
> > conversion is not happening for me automatically.  Any pointers?  Or,
> should
> > I drop back to v 1_2_1?
> >
> > Bart Jenkins, CTO
> > Globeflow SA
> > Cardenal Marcelo Spinola 2, D1, Planta 6
> > 28016 Madrid, Spain
> > telephone: +34 667 65 10 75
> > mailto:[EMAIL PROTECTED]

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