xml-dev - Re: Translating from schema to classes

["Anders W. Tell" <anderst@toolsmiths.se>]

Have a look at <http://WWW.CAM.ORG/~nrivard/uml/umlxchng.html>
which is  UML expressed in XML.

/anders

Dean Roddey wrote:

> "I'm looking for a way of representing C/C++ data types in XML.
> I've been searching around on the web and found references
> to some existing XML that does this, but I haven't found the
> document itself.  Can someone give me a hand with this?"
>
> This is related to something I was thinking about the other day. If I'm going
> to write some code to manipulate very 'record oriented' XML data, I'd often end
> up having a class that represents the records, into which I load the data after
> parsing it in. One thing that would greatly ease the job of doing this would be
> a program that would take an XML schema, a translation file, and spit out a
> class that represents the schema (with getters/setters/serialization/etc...
> appropriate for the language and library.) It could also automatically spit out
> a method that would (given a DOM fragment of that record type), suck out the
> data for that XML record into itself (and vice versa to update the DOM fragment
> to represent itself again.
>
> The translation obviously could also be an XML file in which a set of tags are
> defined that allow the translation to be customized, for instance a type
> mapping tag that says any type foo:int should map to tCIDLib::TInt4 or
> something like that.
>
> So, when the XML changes, I can just rerun the translator and spit out the new
> class. Any added value I would just provide in a derived class, so that the
> underlying data management class can be spit out as required, without losing
> any of my code. You could do a translation file for Java, for C++ STL, I could
> do one for my CIDLib libraries, etc...
>
> Is anyone doing something like this? Or is this just another dumb idea
> (something I'm good at :-) It almost enough trouble to do a translation file
> that it wouldn't be worth it unless you had a lot of different XML data records
> and/or a lot of different languages to spit out representations for. But the
> ability to spit out a method automatically to pull out the data into/outof the
> record would be nice in many cases.
>
> Just a thought anyway...
>
> ----------------------------------------
> Dean Roddey
> Software Weenie
> IBM Center for Java Technology - Silicon Valley
> roddey@us.ibm.com
>
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