Use of attributes seemed attractive at first. But some information could not be
expressed as attributes so we switched to using elements for everything to
be consistent.
Vlada
----- Original Message -----
From: Rickard �berg <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, May 16, 1999 1:17 AM
Subject: Re: EJB1.1 first thoughts
Emmanuel Pirsch wrote:
> I've read the DTD from the 1.1 Spec, it's a real mess. Everything is elements
> It seems that they did not want to use attributes for simple things like the
> "reentrant" element (for wich the DTD allow one to put anything in it even if
> the allowed value should only be "True" or "False").
I don't agree. Consider the following:
If Reentrant is an attribute of the Entity element it would make sense
to have Description as an attribute too. But since it should be possible
to have multiline Description's this aint possible (attributes are
always normalized..). So then some "atteibutes" of Entity would be
XML-attributes and some would be XML-elements, and that would be a real
mess. Hence it is better to be consistent and use elements for all info.
IMHO of course.
> This will make it more difficult to write GUI for editing the DTD. Also valid
> XML DD produce with this DTD may contains error that would be easily avoided by
> using attributes instead of elements when it's appropriate.
I'm almost done with a JavaBean based, extensible, OpenSourced,
Swing-ified EJB1.1 XML editor. It was not that hard IMHO.
Just my 2 cents...
/Rickard
--
Rickard �berg
Computer Science student@LiTH
@home: +46 13 177937
Email: [EMAIL PROTECTED]
Homepage: http://www-und.ida.liu.se/~ricob684
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