Re: options to maintain computed attributes?

[Jephte Clain <jephte.clain@univ-reunion.fr>]

hello again,

I searched a bit and found a paper by luke howard about extending openldap
what is the state of native plugins with respect to slapi plugins?
which is better (read: simpler to implement) for the need expressed
below?
Indeed, I also found a comment by Howard Chu on
http://jpmens.net/2008/07/11/i-finally-get-openldap-triggers/
""""SLAPI is defined by Sun/Netscape, you can refer to their documentation.
Probably would do better discussing this on the openldap-technical
mailing list. And of course, I would have written a native slapd
overlay instead, SLAPI is slower and clumsier."

I was able to find some documentation about slapi on oracle site, but
I can't manage to find any docs about native plugins. maybe I'm just
stupid :-)
slapd.plugin manpage seems to be about slapi plugins only

for those who know slapi plugins: am I right to believe the computed
attribute created with "object" type plugins are dynamic? I mean they
are not stored in the backend but "created" each time the attribute is
requested, right?

thanks in advance for any insights. best regards,
Jephté CLAIN

2015-12-04 13:46 GMT+04:00 Jephte Clain <jephte.clain@univ-reunion.fr>:
> hello,
>
> I may have a need soon to implement "computed" attributes in LDAP, to
> accommodate dumb clients that are unable to properly update the database
>
> for example, an attribute masterAttr may have values like "A:B" (its value
> updated by the dumb client), but other clients need the A or B part
> separately. So whenever masterAttr is updated with value "A:B",
> firstPartAttr have to be updated with "A" and secondPartAttr with "B"
>
> what are my options to achieve this?
> - is there an overlay like slapo-rwm but for attribute values? I searched
> but did not found anything. So I guess the answer is no.
> - using a combination of back-perl, back-relay and slapo-translucent? is
> that even possible
> - using back-sock as an overlay to monitor modifications and update the
> modified objects accordingly?
> - a script that monitor the accesslog database and update the modified
> objects accordingly?
> - biting the bullet and writing an overlay myself?
>
> before diving too deep into this issue (and possibly drowning), I figured I
> would ask. any thoughts? ideas?
>
> thanks in advance, best regards,
> Jephté CLAIN
>
> --
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-- 
Jephté CLAIN | Développeur, Intégrateur d'applications
Service Système d'Information
Direction des Systèmes d'Information
Tél: +262 262 93 86 31 || Gsm: +262 692 29 58 24