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Posted to c-dev@xerces.apache.org by Sudheer Tumuluru <st...@real.com> on 2000/05/11 04:43:09 UTC

Xerces and Object model integration

Hi,
            I posted a message yesterday querying about the extent to
which the Xerces library implements conversion between XML documents and
objects. Probably I was not clear in my question.
            I have a set of C++ STL based classes (some of them are
lists, hashmaps and sets). Is there a way of creating these objects
easily from the XML documents? I started to write a generalized
(probably templatized) framework for this; but I am still wondering if
all this has been done and is already available. As I see it, this is a
very common scenario for the usage of XML and is it the case that
everybody is implementing their own SAX based finite-state machine for
their needs. Wouldn't this make it non-extensible. When the DTD changes,
they would need to change or extend it again. Any help in this regard is
greatly appreciated.

Thanks a lot,
Sudheer

Re: Xerces and Object model integration

Posted by Radovan Chytracek <Ra...@cern.ch>.
Hi,

    I see the problem with SAX concerning automatic generation of source
files.
As you mentioned it's very DTD/Schema dependent. AFAIK the automatic
generation can be done
for DOM where you can do it in a relatively straightforward way, see Oracle
C++ Generator for XML.

Rado

Ward Cannon wrote:
> 
> Hi Sudheer,
> You're right.
> In my case I did implement serialization/de-serialization classes to persist
> my data objects to/from xml but the implementation to do so was very
> dependent on the DTD. I'm not aware of any C++ generic XML-IO framework but
> I would be very interested if there were any.
> 
> Regards,
> Ward
> 
> -----Original Message-----
> From: stumuluru@prognet.com [mailto:stumuluru@prognet.com]On Behalf Of
> Sudheer Tumuluru
> Sent: Wednesday, May 10, 2000 7:43 PM
> To: xerces-c-dev@xml.apache.org
> Subject: Xerces and Object model integration
> 
> Hi,
>             I posted a message yesterday querying about the extent to
> which the Xerces library implements conversion between XML documents and
> objects. Probably I was not clear in my question.
>             I have a set of C++ STL based classes (some of them are
> lists, hashmaps and sets). Is there a way of creating these objects
> easily from the XML documents? I started to write a generalized
> (probably templatized) framework for this; but I am still wondering if
> all this has been done and is already available. As I see it, this is a
> very common scenario for the usage of XML and is it the case that
> everybody is implementing their own SAX based finite-state machine for
> their needs. Wouldn't this make it non-extensible. When the DTD changes,
> they would need to change or extend it again. Any help in this regard is
> greatly appreciated.
> 
> Thanks a lot,
> Sudheer
> 
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-- 

Radovan Chytracek                     LHCb experiment at CERN
e-mail: Radovan.Chytracek@cern.ch     WWW: http://home.cern.ch/~chytrace
phone:  +41 22 76 72486

RE: Xerces and Object model integration

Posted by Ward Cannon <wa...@creativeplanet.com>.
Hi Sudheer,
You're right.
In my case I did implement serialization/de-serialization classes to persist
my data objects to/from xml but the implementation to do so was very
dependent on the DTD. I'm not aware of any C++ generic XML-IO framework but
I would be very interested if there were any.

Regards,
Ward

-----Original Message-----
From: stumuluru@prognet.com [mailto:stumuluru@prognet.com]On Behalf Of
Sudheer Tumuluru
Sent: Wednesday, May 10, 2000 7:43 PM
To: xerces-c-dev@xml.apache.org
Subject: Xerces and Object model integration


Hi,
            I posted a message yesterday querying about the extent to
which the Xerces library implements conversion between XML documents and
objects. Probably I was not clear in my question.
            I have a set of C++ STL based classes (some of them are
lists, hashmaps and sets). Is there a way of creating these objects
easily from the XML documents? I started to write a generalized
(probably templatized) framework for this; but I am still wondering if
all this has been done and is already available. As I see it, this is a
very common scenario for the usage of XML and is it the case that
everybody is implementing their own SAX based finite-state machine for
their needs. Wouldn't this make it non-extensible. When the DTD changes,
they would need to change or extend it again. Any help in this regard is
greatly appreciated.

Thanks a lot,
Sudheer


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