dE wrote: > "An object or alias entry is characterized by precisely one > structural object class superclass chain which has a single > structural object class as the most subordinate object class. > This structural object class is referred to as the structural > object class of the entry." > > There's a bit of ambiguity with this > > "which has a single structural object class as the most subordinate > object class" > > What do you mean by 'most subordinate'? Is it that there must be no > parallel > entries at the same level in the hierarchy? It's always better to provide a reference to the full text of a quoted text. The hierarchy in this case is the the structural object classes hierarchy, not the directory information tree (DIT). Read in RFC 4512 about what SUP in object class description means: http://tools.ietf.org/html/rfc4512#section-4.1.1 Note that there's also an attribute type hierarchy defined with SUP. Ciao, Michael.

dE wrote: > On 04/15/15 19:28, Michael Ströder wrote: >> dE wrote: >>> "An object or alias entry is characterized by precisely one >>> structural object class superclass chain which has a single >>> structural object class as the most subordinate object class. >>> This structural object class is referred to as the structural >>> object class of the entry." >>> >>> There's a bit of ambiguity with this >>> >>> "which has a single structural object class as the most subordinate >>> object >>> class" >>> >>> What do you mean by 'most subordinate'? Is it that there must be no >>> parallel >>> entries at the same level in the hierarchy? >> >> It's always better to provide a reference to the full text of a >> quoted text. >> >> The hierarchy in this case is the the structural object classes >> hierarchy, >> not the directory information tree (DIT). Read in RFC 4512 about >> what SUP in >> object class description means: >> >> http://tools.ietf.org/html/rfc4512#section-4.1.1 >> >> Note that there's also an attribute type hierarchy defined with SUP. > > Yes, I know that. > > Actually the question was -- > > What do you mean by 'most subordinate'? Is it that there must be no > parallel > structural object class at the same level in the class hierarchy? Yes. Ciao, Michael.

dE wrote: > On 04/15/15 19:28, Michael Ströder wrote: >> dE wrote: >>> "An object or alias entry is characterized by precisely one >>> structural object class superclass chain which has a single >>> structural object class as the most subordinate object class. >>> This structural object class is referred to as the structural >>> object class of the entry." >>> >>> There's a bit of ambiguity with this >>> >>> "which has a single structural object class as the most subordinate >>> object >>> class" >>> >>> What do you mean by 'most subordinate'? Is it that there must be no >>> parallel >>> entries at the same level in the hierarchy? >> >> It's always better to provide a reference to the full text of a >> quoted text. >> >> The hierarchy in this case is the the structural object classes >> hierarchy, >> not the directory information tree (DIT). Read in RFC 4512 about >> what SUP in >> object class description means: >> >> http://tools.ietf.org/html/rfc4512#section-4.1.1 >> >> Note that there's also an attribute type hierarchy defined with SUP. > > Yes, I know that. > > Actually the question was -- > > What do you mean by 'most subordinate'? Is it that there must be no > parallel > structural object class at the same level in the class hierarchy? Yes. Ciao, Michael.

dE wrote: > Suppose this is the superclass chain -- > > A -> B -> C -> D -> E -> F -> G > > Then for D, the superclass chain is A -> B -> C, and in this chain D > is the > most subordinate. Yes. > For F, the superclass chain is A -> B -> C -> D -> E and here too F > is the > most subordinate. Yes. > So what do you mean by the 'superclass chain'? > The whole chain A to G No. > or is it relative to a particular object class Yes. And other funny combinations by using multiple inheritance. Ciao, Michael.