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JAXP or JAXB

 
Joe Harry
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Guys,

In what scenarios do we prefer JAXP over JAXB? I'm currently exploring on JAXB to perform a task and as far as I read through JAXB, I understand that XML processing is straight forward without the need to use SAX or DOM. Given this advantage, what is the need for JAXP?
 
Ulf Dittmer
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There are few things that come only with advantages, and no disadvantages :-)

Having JAXB create all those objects carries a performance overhead, plus the need to have all those classes in the first place. Also, SAX code is more stable in the face of changing document structure - if you use JAXB, then your classes need to match the document, or there'll be problems.
 
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