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samar

Java parser
1 Answer(s) 2 years and 7 months ago
Posted in : Java Interview Questions

What is the difference between DOM and SAX?

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October 28, 2010 at 3:40 PM

Hi,

Here is the answer.

sax is an event based parser and raise an event, while dom is not.
sax is forward only where as dom can acess both was forward as well as backwards.
sax parses the file as it reads where as the dom loads the file into memory to parse the file.
Sax does not have memory constraints where as the dom has momory constraints as xml file is loaded into the momory to parse the file.
sax is read only , dom is read and write both.
if you have to parse and use the content only once , consider using sax if the xml file and content are used extensively then consider using dom.

Thanks.

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