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   Re: XML vs. object model resource usage for manipulation

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  • From: David Megginson <david@megginson.com>
  • To: xml-dev@ic.ac.uk
  • Date: Tue, 10 Aug 1999 21:29:14 -0400 (EDT)

Rochelle Edens writes:

 > I'm actually more concerned about DOM manipulation and
 > parsing-activities in comparison to creating an object and method
 > invocations.  I understand there's a lot of overlap and
 > instantiating objects is inherent to both, and maybe I need to dig
 > through parser code and see how it's working and what's getting
 > created.  My thinking was that it could *potentially* be an issue.

Yes, it's certainly an issue.  The DOM is a generic object model for
XML documents, but when you already have a domain-specific object
model, it will usually be more efficient -- in those cases, people
tend to use an event-based API like SAX to build their object trees
directly, eliminating the middle DOM phase.

All the best,


David Megginson                 david@megginson.com

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