Re: Families of Entries

[David Chadwick <d.w.chadwick@salford.ac.uk>]

Send reply to:  	<bobj@cup.hp.com>
From:           	"Bob Joslin" <bobj@cup.hp.com>
To:             	<d.w.chadwick@iti.salford.ac.uk>
Subject:        	Families of Entries
Date sent:      	Tue, 27 Jul 1999 10:40:20 -0700

> David,
> 
> If you don't mind, I have a couple of questions on the families draft.  

Not at all

>I
> can't say I read families of entries in great detail, so maybe what I'm
> looking for is already there.  I am wondering if it needs some additional
> information about how attributes are selected when using the various
> parameters to the families control.

Attributes are selected in the normal way via LDAP Search 
parameters (filters and attributes to be returned). It is not part of the 
families draft as it already exists.


> 
> My first question is:  If an attribute is single-valued, but the child
> entries have more than one attribute of that type, what should the search
> return (assuming that more than one attribute of that type is selected by
> the control.)

The whole point is that the families are separate entries, so each 
entry may contain the same single valued attribute type (with 
possibly different values). The user can choose to get the family 
back as separate entries or as a compound entry via the structured 
attribute in the ID (and this has RDN fields that separates out the 
children so that there wont be any confusion to the client).


> 
> Second: If an attribute is a MUST, but is contained in a parent, does it
> need to be in every child as well (this assumes that a search control
> results in the parent and child being merged together, thus satisfying the
> MUST.)  Of course, this could cause big problems if the user used the
> "entryOnly" selection criteria.

No, each child has its own schema controlling its contents. In this 
respect they behave as separate entries.

David

> 
> Thanks for your time.
> 
> Bob Joslin
> 
> Hewlett Packard
> HP-UX/LDAP Integration team
> bobj@cup.hp.com
> 
> 
> 


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David Chadwick
IS Institute, University of Salford, Salford M5 4WT
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