When you should use a StAX parser?

1.	When you should use a StAX parser?
Answer» You should use a StAX parser when − You can process the XML document in a linear fashion from the top down. The document is not deeply nested. You are processing a very large XML document whose DOM tree would consume too much memory. Typical DOM implementations use ten bytes of memory to represent one byte of XML. The problem to be solved involves only part of the XML document. Data is available as soon as it is seen by the parser, so StAX works well for an XML document that arrives over a stream.

Answer»

You should use a StAX parser when −

You can process the XML document in a linear fashion from the top down.
The document is not deeply nested.
You are processing a very large XML document whose DOM tree would consume too much memory. Typical DOM implementations use ten bytes of memory to represent one byte of XML.
The problem to be solved involves only part of the XML document.
Data is available as soon as it is seen by the parser, so StAX works well for an XML document that arrives over a stream.

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