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From Alex Karasulu <>
Subject Re: Database information back end
Date Wed, 22 Nov 2006 02:45:58 GMT
George Stoianov wrote:
> Hi,
> I read a thread on the possibility of having a database back end for
> ADS and have tried to understand all the arguements pro and con and I
> think I am on cross roads regarding the philosophical and design
> aspects of the whole idea :) (leaning towards an rdbms aren't you
> using BerkleyDB??), but still as a person that has/is using databases
> for many other things I see some benefits to be had if you could
> enable at least the presentation of database data in response to ldap
> queries.
> One major drawback of ldap compared to a relation storage architecture
> is that it is not relational in database terms it is more of a network
> type of database structure where the information for each node of data
> is stored at the node level and the uniqueness is guaranteed by the
> path i.e. if I have a person that belongs to two different
> departements I would have to create two records for that person and
> all the common data would be duplicated in order to have that person
> access the different resources for the other department. I know that
> if you could possibly put all the requirements down you could get a
> good enough structure to account for that but flexibility in the long
> term seems a lot harder to attain that with an rdbms engine, although
> I like the trigger and view capabilities you are building they maybe
> the solution. I am completely new to ldap so please correct me if I am
> wrong.
> I am currently in the processes of helping with the implementaion of a
> solution that uses ldap for user credentials, those credentials are
> also used to form groups of people based on database records that
> experiences frequent updates and changes so I am looking for a
> flexible and quick in respect of updates/deletes solution and was
> really happy to find ADS as I thought that maybe/is the answer???
> So let me get to my question: Is there a place in the ADS API where I
> could plug in another representation of a storage structure which I
> then will inadvertantly tie to a rdbms back end. What I need is the
> power and the standards compliance from ADS and the ability to serve
> my own data from a different source. Can you please point me in the
> right direction on this??

Take a look at this interface which you may want to implement ...

But to understand ADS architecture you might want to take a quick peek 
at this presentation here ...

See Presentation.ppt


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