Refresh Your Java - Before Java Interview
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The SAX parser doesn't create any internal
representation of the document, so it can scan
and parse gigabytes worth of XML documents without hitting
resource limits because it does
not try to create the
DOM representation in memory. Instead, it raises events that you
can
handle as you see fit. Because of this design, the
SAX implementation is generally faster
and requires
fewer resources.
On the other hand, SAX code is frequently
complex, and the lack of a document representation
leaves you with the challenge of manipulating, serializing,
and traversing the XML document.
With SAX parser
you could not traverse back once an elemented is processed,
but with
DOM
you can traverse through back and
froth.
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