Emmanuel Lécharny wrote:
Le 07/03/16 20:45, Stefan Seelmann a écrit :
On 03/06/2016 02:49 AM, Emmanuel Lécharny wrote:
I think it will be very useful for studio, when running against
ApacheDS, as once can now expose the number of *real* childrens and
subrdinates without having to fetch them from teh server (more
important, we won't be limited by the SizeLimit that can be set -
typically 1000).
I wish we can have the same feature added to OpenLDAP and the other
servers...
Well some servers support something similar: Novell has a
"subordinateCount" AT, SunDS/OpenDS/OpenDJ have a "numSubordinates" and
"hasSubordinates" AT. numSubordinates is defined in an expired draft [1]
and has OID 1.3.6.1.4.1.453.16.2.103 assigned. hasSubordinates is even
defined in X.501 and has official OID 2.5.18.9 assigned.
I took the idea from SunDS, leveraging the fact that we have the
information available.
In Studio we use those attributes but only to indicate if an entry
contains children or not and ot make the item in the tree expandable or not.
Good
Maybe we can add at lease hasSubordinates additionally, then other LDAP
clients that already support it can leverage it.
I can add the hasSubordinates AT easily.
I think numSubordinates and subordinateCount only mean the number of
direct children, whereas our nbSubordinates means all.
Because we have the nbChildren that gives the direct number of children.
I think in Studio we can add support for those, we can extend the number
shown for an entry like that:
ou=users (1000/23456/456789)
which means 1000 entries fetched, out of 23456 direct children out of
456789 total subordinates.
Sounds like a good idea, although it's a bit heavy. How about having
just the number of children as a default, and a hover to give the number
of fetched and subordinates ?
Most of the time, people won't fetch the entries.
OpenLDAP has supported hasSubordinates for quite a long time. The current
back-mdb has the necessary info to provide numSubordinates but we didn't see a
need to implement it. back-bdb/hdb don't have the info for numSubordinates and
since they are deprecated, we would not be adding anything to them any more.
(Actually, I don't know which you're referring to. They could all provide the
number of immediate children; the total number of subordinates in the subtree
is only directly available in back-mdb at the moment.)
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
