Subject: RE: [xsl] JAXP: namespaces/namespace-prefixes features for SAXResult From: "Michael Kay" <michael.h.kay@xxxxxxxxxxxx> Date: Tue, 10 Dec 2002 00:00:39 -0000 |
I think it's a reasonable assumption that as a provider of SAX events, an XSLT transformer is expected to mimic an XMLReader with the default settings of the namespace features: not just because these are the defaults, but because XSLT is intrinsically namespace-aware. Michael Kay Software AG home: Michael.H.Kay@xxxxxxxxxxxx work: Michael.Kay@xxxxxxxxxxxxxx > -----Original Message----- > From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of > Nikolai Grigoriev > Sent: 09 December 2002 22:24 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] JAXP: namespaces/namespace-prefixes features > for SAXResult > > > Hi all, > > I am reading output of an XSLT transformation through > javax.xml.transform.sax.SAXResult. It looks very similar > to using an XMLReader: I set a ContentHandler and > get information through its callbacks. However, an > XMLReader can deliver parse results in a variety > of ways. In particular: > > - qNames can be present or null; > - start/endPrefixMapping() events may be fired or skipped; > - xmlns:* attributes may be present or absent in the attribute lists. > > For an XMLReader, I can tame this zoo through setFeature() > method, using > two features http://xml.org/sax/features/namespaces and > http://xml.org/sax/features/namespace-prefixes > (a table at > http://www.saxproject.org/?selected=namespaces, > "Configuring Namespace Support" unambiguously defines behaviour > for each feature combination). Even if the parser does not support > a particular pairing, I can at least query its capabilities, > and adjust > my ContentHandler accordingly. > > Now I pass to JAXP. The same ContentHandler is fed to a Transformer > (wrapped into a SAXResult); so I would expect either the Transformer > or its mother TransformerFactory to recognize SAX2 features. I have > browsed the whole JAXP 1.1 specification looking for a way to set > (or at least to query) the features, but in vain. I could not > even find > the exact description of the default behaviour. Looks like the choice > of values for SAX properties is implementation-dependent - > but this would undermine the whole idea of pluggability, so I > am definitely > missing some important piece of the puzzle. > > In view of the above, my questions are: > > 1) What is the default behaviour of Transformer wrt > namespaces/namespace-prefixes? Where in the JAXP spec > is it defined? > > 2) Can I query or modify SAX2 parser features for a JAXP > Transformer object? If yes, how? > > Thanks to anyone willing to get me out of the impasse. > > Regards, > Nikolai Grigoriev > RenderX > > > > > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
[xsl] JAXP: namespaces/namespace-pr, Nikolai Grigoriev | Thread | Re: [xsl] JAXP: namespaces/namespac, Elliotte Rusty Harol |
[xsl] Getting file-name of input-fi, Jan Mendling | Date | Re: [xsl] Getting file-name of inpu, Mike Brown |
Month |