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From Dennis Sosnoski <>
Subject Re: Axis + JAXB is a good solution for complex data mapping?
Date Thu, 30 Jan 2003 02:09:09 GMT
Hi David,

It sounds like you're talking about the original JAXB EA - that's the 
one that used DTDs. That code's been dropped and replaced with a new API 
designed for Schema support. You can see the JAXB home page for details: I've also got a pair of articles 
online at IBM developerWorks that cover JAXB and open source 
alternatives for data binding. The first one 
covers JAXB's history and the features of all the alternatives, the 
second ( 
covers performance.

The good news is that JAXB (the new one) is intended to be integrated 
into JAX-RPC in the future, and when it is it should offer a very nice 
approach for handling document literal SOAP. Its performance is also 
fairly good. The bad news is that until there's a final release it's not 
usable for anything other than evaluation purposes. I'm hoping that the 
final release version of the reference implementation (expected by the 
end of this quarter) will be usable in application code, but have not 
seen any committment on this from Sun.

In the meantime Castor is probably your best alternative if you want to 
work with data binding inside Axis (aside from the built-in RPC-encoding 
support). There've been a number of posts in the past from people 
working with Castor - you can check the archives on this. It looks like 
there's now also a built-in encoder for Castor handling in the latest 
1.1 code: org.apache.axis.encoding.ser.castor. I haven't tried this out 
yet, so can't give you any feedback on how it works.

  - Dennis

Dennis M. Sosnoski
Enterprise Java, XML, and Web Services Support
Redmond, WA  425.885.7197

David payam wrote:

> Hi:
> JAXB + DTD is very good for Java and XML mapping. So anybody use JAXB with
> Axis ? any example for it?
> Thanks
> ------------------------------------------------------------------------
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> <>

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