[Date Prev][Date Next] [Chronological] [Thread] [Top]

Re: Repost : Multiple inheritance





--On Donnerstag, 11. April 2002 12:39 +0200 Stephan Siano <stephan.siano@suse.de> wrote:

No it is not. RFC 2252 is somewhat inprecise in this respect (speaking
about  structural object classes), but it referrs to the X.500 Object
model.  Structural object classes build a single object class chain;
multiple  inheritance is not possible.

Multiple inheritance IS possible:
"An object class may be derived from two or more direct superclasses (superclasses not part of the same superclass chain). This feature of subclassing is termed multiple inheritance." [X.501(1993) section 8.3]


There can however be only one "structural object class of the entry", i.e. the superclass chain formed by all structural object classes in the entry's object class list "has a single structural object class as the most subordinate object classs".

--
Norbert Klasen, Dipl.-Inform.
DAASI International GmbH                 phone: +49 7071 29 70336
Wilhelmstr. 106                          fax:   +49 7071 29 5114
72074 Tübingen                           email: norbert.klasen@daasi.de
Germany                                  web:   http://www.daasi.de