Re: [Springframework-developer] Extensible XML processing in Spring: prototype version available in CVS HEAD

[Fredrik L. <fre...@ap...>]

On Mon, 13 Jun 2005 09:51:04 +0200, <jas...@ma...> wrote:

> On 12 Jun 2005, at 08:52, Fredrik Lindgren wrote:
>> The functionality described seems nice and unobtrusive.
>>
>> Switching to XSD however, would be a disaster. Not only would you add =
=20
>> more dependencies to spring to support XSD validation,
>
> What new dependency? Xerces is included in the JDK/JRE which can handle=
 =20
> XSD validation
>
I know that the latest JDK supports it, but is it safe to expect all =20
spring users to upgrade? The solution should be able to support being =20
deployed on older versions as well. This could of course be handled by no=
t =20
performing the validation for custom xml in case the custom validation =20
support is not available. That would be OK for me.

>> you would also force an unneccesary, and in my opinion bad, technology=
 =20
>> choice on spring users if they want to take advantage of the custom xm=
l =20
>> functionality.
>
> Both DTDs and XSDs can be supported - the Spring.xml file can decide =20
> which validation mechanism it prefers.
>
>
>> Please go ahead and add the custm xml functionality, but in the Spring=
 =20
>> spirit, keep the validation implementation pluggable.
>
> It is! :)
>
> Whatever the end user uses to validate their XML is up to them - either=
 =20
> DTD, XSD or no validation are the choices right now.

I know. That's why I support adding the functionality as it is right now.=
 =20
I only objected to the idea of switching to XSD as a required/default =20
validation mechanism for the spring XML. Personally I prefer to use RELAX=
 =20
NG for my validation needs since it has better support for alternative =20
syntaxes (attribute or child content) and support for cooccurence =20
constraints which might be helpful for catching some additional =20
configuration errors. I'll check out the implementation details and try t=
o =20
get back with more constructive feedback.

Regards
Fredrik Lindgren




>
> James
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--=20
Fredrik Lindgren
Software Architect, Appear Networks AB