Re: Parser/Object Builder for w3-XML-Schema

[sabba <sabbadin@infinito.it>]

any info on such tools for COM / NET for the windows platform ?

----- Original Message ----- 
From: "Patrick Ohl" <Patrick.Ohl@o-h-l.de>
To: "Himanshu Gupta" <hgupta@DB.Stanford.EDU>
Cc: <xml-dev@lists.xml.org>
Sent: Friday, May 25, 2001 6:32 PM
Subject: Re: Parser/Object Builder for w3-XML-Schema


> Hi,
> 
> When I get you right, you are looking for an implementation of a XML
> Data Binding facility as supposed in
> http://java.sun.com/xml/jaxp-docs-1.0.1/docs/bind.pdf . Well, I think
> there is no implementation - especially for XML Schema - yet.
> 
> Suns JAXB -- formerly known as Project Adelard -- got stuck somewhere,
> and despite the release was scheduled for second quarter of 2001, it all
> got a little quite around it. It, too, is just a specification and it is
> not known when there will be a reference implementation. (See:
> http://www.javaworld.com/javaworld/javaone00/j1-00-adelard.html )
> 
> Brett McLaughlin's Zeus is aiming in exactly that direction, but it is
> nothing more than a framework of 26 little interfaces and classes. I
> judge it rather poor. If you have to implement the whole generator you
> can implement the classes as well. (See: http://zeus.enhydra.org and
> http://www-4.ibm.com/software/developer/library/data-binding1/index.html
> )
> 
> I am currently working on an implementation called 'XML2Java', but the
> XML Schema support won't be up until end of summer. (See:
> http://www.jNerd.de/xml2java.html ) It generates Java source code
> according to a DTD. The hierarchy is very flat, so you can sub- and
> super class the classes, to give them a little 'life'. A SAX based (any
> JAXP does) reader and a writer gets generated as well. With little
> effort you can easily customize the generated classes to constrain
> certain fields to be Integers, Dates or whatever. But you need a DTD
> first.
> 
> Oracle has a free 'Class Generator' in their XDK (
> http://technet.oracle.com/tech/xml/ ). It is still in development (I
> think software always is!). The problem I see with Oracles Class
> Generator, is that you are bound to the Oracle XML Parser. AND: No XML
> Schema support.
> 
> Another tool for Data Binding is Jato (http://www.krumel.com/jato ). It
> supports dynamic mapping functionality via XML scripts. It is quite
> flexible, but you have to do a lot of scripting though.
> 
> I haven't checked out Breeze Factor's XML Studio yet. This is probably
> the overkill application for this job (it is a commercial solution for
> building XML based web sites.), but it should be able to handle XML
> Schema. It too imports some breeze factor classes in the generated java
> sources. (See: http://www.breezefactor.com ) 
> 
> Hope these info helps you along,
> 
> Cheers,
> 
> PAtrick
> 
> 
> Himanshu Gupta wrote:
> > 
> > Hi,
> > 
> > I'm looking for the following:
> > 
> > Software tool that creates an appropriately defined XMLSchema object
> > from an XMLSchema file/document. In other words, it takes in an XML
> > Schema (w3 proposed) file as an input and creates a XML Schema object
> > (something more meaningful than a DOM). Java is most preferable.
> > 
> > Thanks,
> > 
> > --Himanshu
> > 
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