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   Re: XML parsing performance

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  • From: David Megginson <david@megginson.com>
  • To: <xml-dev@ic.ac.uk>
  • Date: 27 Oct 1999 09:59:47 -0400

"Stephen T. Mohr" <smohr@voicenet.com> writes:

> If you look at SAX vs. DOM, be sure to include the time to
> build/navigate any data structures you build in using SAX.  As
> others have noted, SAX really shines if you can use the information
> as it comes in, i.e., with minimal state information.

Right, except that many (most?) object models are navigable in their
own way.

Basically, if your object model *is* the DOM (i.e. if you're using the
document as a document), then use the DOM; if your object model is
something else (i.e. you're using the document as data serialization),
then it is extremely wasteful to build a DOM first, since you'll still 
have to build your own structures in the end.

All the best,


David Megginson                 david@megginson.com

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