Re: Java NVDL implementation
> Fine, but then I don't think NVDL is the tool they need ... NVDL will > validate the use of namespaces *in the context* of the document > without disturbing that context and making the entire document > available for processing as a whole. I think that I think of extra namespaces extending a canonical format in this context, and as such I want to have the canonical format seperated and purified from its extensions when sent to an application, or maybe I'm having something of a problem seperating what I want from what other people tell me they want (here I am thinking especially in the context of UBL) > Remember that XSLT acts on XPath addresses without validation ... so > if a stylesheet knows that a document is valid, it can skip its own > validation and just act on the information items ... and if a > document is not considered valid structurally before being sent to > XSLT then there is no assurance the XSLT will work properly. > I think there is just as little chance of the xslt working properly in this scenario as in mine. I'm envisioning a situation where: 1. I write an xslt for documents in namespace x. 2. someone wants to extend documents in namespace x with namespace y. 3. They write an NVDL to validate these two namespaces. Thus the document then still get passed to my xslt, or should the xslt be updated? I think it should probably be updated because now the structure that is coming is no longer that which was originally expected. Hopefully of course I have structured my xslt well, in a non dependent template manner so that the two namespaces are effectually seperated, but that cannot be certain. Another thing that cannot be certain is what I have done with text nodes, I tend to use the default handlin g for text nodes, if namespace y has text nodes suddenly what is coming out on the other end might not be as good as it was before. I think this way is to interconnected and harder to maintain than the following 1. I write an xslt for documents in namespace x 2. someone wants to extend documents in namespace x with namespace y 3. they write an nvdl to validate these two namespaces 4. NVDL valid stream for Namespace x will be passed to my xslt 5. someone writes perl script for namespace y to save NVDL valid stream to filesystem. or other similar scenarios which returning the streams would allow for. Cheers, Bryan Rasmussen > >And if they are doing that, why not do just that and skip NVDL? > > If they don't need the separate namespaces in context, then I totally > agree: skip NVDL as it doesn't apply. > > >The use case for NVDL without some way to hook into the seperated > >streams will seem very small to the average developer, I think. > > I disagree. I think the developer will more than likely be working > on the whole rather than on the separate bits, otherwise they would > have to invent their own ways of maintaining context on the separate > bits to make the processing of them meaningful. > > Whereas they can act on the whole in a single process with the > NVDL-based assurance that the whole mixture of namespaces is as > expected according to the NVDL script. > > I hope this helps. > > . . . . . . . . . . Ken > > > -- > Registration open for XSLT/XSL-FO training: Wash.,DC 2006-06-12/16 > Also for XSLT/XSL-FO training: Minneapolis, MN 2006-07-31/08-04 > Also for XML/XSLT/XSL-FO training:Birmingham,England 2006-05-22/25 > Also for XSLT/XSL-FO training: Copenhagen,Denmark 2006-05-08/11 > World-wide on-site corporate, govt. & user group XML/XSL training. > G. Ken Holman mailto:gkholman@C... > Crane Softwrights Ltd. http://www.CraneSoftwrights.com/x/ > Box 266, Kars, Ontario CANADA K0A-2E0 +1(613)489-0999 (F:-0995) > Male Cancer Awareness Aug'05 http://www.CraneSoftwrights.com/x/bc > Legal business disclaimers: http://www.CraneSoftwrights.com/legal > > > ----------------------------------------------------------------- > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an > initiative of OASIS <http://www.oasis-open.org> > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > To subscribe or unsubscribe from this list use the subscription > manager: <http://www.oasis-open.org/mlmanage/index.php> > >
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