X501 section 8.3.2 recommends:
"An object or alias entry is characterised by precisely
one structural object class superclass chain which has
a single structural object class as the most subordinate
object class."
Doesn't this imply that an auxiliary object class can not
subclass a structural object class?
Thanks,
Mircea.
-----Original Message-----
From: Kathy Dally [mailto:kdally@mitre.org]
Sent: Tuesday, January 28, 2003 9:58 AM
To: Jim Sermersheim
Cc: ietf-ldapbis@OpenLDAP.org
Subject: Re: Models: Subclassing
Hi Jim!
There are no restrictions in X.501 on structural and auxiliary classes
being subclasses of one another. Although it doesn't make a lot of
sense to me, I have seen cases where several structural object classes
have an auxiliary as the superclass. I can't think of an example of the
reverse, off hand.
Thanks,
Kathy
Jim Sermersheim wrote:
>
> Section 2.4 describes object class subclassing, but should express the
> effect of subclassing (namely that a subclass inherits the MUST and MAY
> list(s) of superior object classes in its superclass chain, but does not
> inherit Name Forms or DIT Content Rules)
>
> Section 2.4.2 states "Structural object classes cannot subclass
> auxiliary object classes." and Section 2.4.3 states "Auxiliary object
> classes cannot subclass structural object classes.". I can't find these
> restrictions in X.501--can you point out the reference?
>
> Jim