|
[XML-DEV Mailing List Archive Home]
[By Thread]
[By Date]
[Recent Entries]
[Reply To This Message]
Re: Re: Streaming XML (WAS: More on taming SAX (was Re:[xml-de
On Thu, 2004-12-30 at 17:35 -0500, Alan Gutierrez wrote:
> * Uche Ogbuji <uche.ogbuji@f...> [2004-12-30 17:19]:
> > On Thu, 2004-12-30 at 21:54 +0000, Miles Sabin wrote:
> > > Uche Ogbuji wrote,
> > > > SAX says nothing that prevents temporally simultaneous events.
> > >
> > > If it doesn't that's a bug in the docs and should be fixed.
> > >
> > > The runtime nesting of SAX event callbacks mirrors the structure of the
> > > real or virtual document being parsed. Simultaneous events would imply
> > > superimposed nodes ... which ain't possible.
> >
> > I could buy this, but I don't see why I have to. One could also claim
> > that the letter of SAX2 makes the way it's implemented in Python
> > illegal, but I suspect they would be rightly ignored.
> >
> > I don't see why a parallelized streaming architecture could not be
> > expressed in terms of SAX events. Perhaps you could persuade me SAX
> > does not allow it, but I expect that this would be only by admitting to
> > precious and entirely unnecessary restrictions in the definition of SAX.
>
> Uche
>
> Are you talking about reading a document that is not stored in a
> serial format?
Possibly. There are many ways one could parallelize a SAX stream. As
an example, let's take our wide document example from earlier (large
collection of address labels).
I can imagine a SAX impl sending multiple startElement('label') events
in parallel.
> Miles
>
> I don't get it. What's the big deal?
Well, to be fair, I've never heard of a SAX impl that uses any
parallelization. Miles is right in that my point was entirely
theoretical (and to some extent rhetorical). I do honestly expect,
however, for such theory to become practice in the programmer's
specialized toolkit earlier than it will in, say, XSLT or XQuery
implementations.
I think so in part because of real world practice in general-purpose
parallel processing, where I believe specialized applications far
outnumber those based on truly abstracted frameworks (PVM does not
qualify).
--
Uche Ogbuji Fourthought, Inc.
http://uche.ogbuji.net http://4Suite.org http://fourthought.com
Use CSS to display XML - http://www.ibm.com/developerworks/edu/x-dw-x-xmlcss-i.html
Full XML Indexes with Gnosis - http://www.xml.com/pub/a/2004/12/08/py-xml.html
Be humble, not imperial (in design) - http://www.adtmag.com/article.asp?id=10286
UBL 1.0 - http://www-106.ibm.com/developerworks/xml/library/x-think28.html
Use Universal Feed Parser to tame RSS - http://www.ibm.com/developerworks/xml/library/x-tipufp.html
Default and error handling in XSLT lookup tables - http://www.ibm.com/developerworks/xml/library/x-tiplook.html
A survey of XML standards - http://www-106.ibm.com/developerworks/xml/library/x-stand4/
The State of Python-XML in 2004 - http://www.xml.com/pub/a/2004/10/13/py-xml.html
|
PURCHASE STYLUS STUDIO ONLINE TODAY!
Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!
Download The World's Best XML IDE!
Accelerate XML development with our award-winning XML IDE - Download a free trial today!
Subscribe in XML format
| RSS 2.0 |
 |
| Atom 0.3 |
 |
| |
Stylus Studio has published XML-DEV in RSS and ATOM formats,
enabling users to easily subcribe to the list from their preferred news reader application.
|
Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website.
they were not included by the author in the initial post. To view the content without the Sponsor Links please
click here.
|
|
Cart
