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From "Ersin Er" <ersin...@gmail.com>
Subject Re: [ApacheDS] Completing all hooks for triggers
Date Thu, 20 Sep 2007 05:53:51 GMT
On 9/20/07, Alex Karasulu <akarasulu@apache.org> wrote:
>
> Sounds like a plan.  I want to drive forward with this as well as the
> specification process.  I have some ideas on these topics namely the search
> issues.


I could not pass this..:

My recent thought lead me to the idea of Read Triggers instead of Search
Triggers... (more dots here)

Alex
>
> On 9/19/07, Ersin Er <ersin.er@gmail.com> wrote:
> >
> > Hi,
> >
> > On 9/20/07, Alex Karasulu < akarasulu@apache.org> wrote:
> > >
> > > Ersin,
> > >
> > > I was wondering what the plan is for completing all the trigger
> > > hooks.  While looking into
> > > implementing a custom authenticator for delegating authentication to
> > > external LDAP servers
> > > (namely AD) it occurred to me that I could use a trigger and stored
> > > procedure instead.  I
> > > think Emmanuel had this idea a little while ago.
> >
> >
> > Basically I consider triggers as a user-side tool. A trigger is a
> > replacement for code developed at client side to keep things in sync. If we
> > want to use triggers for server extensions we need to go beyond the
> > standardization effort. I don't think that we can propose as standard those
> > all constructs needed by our server extension process.
> >
> > I can implement a SP and fire it via an INSTEAD OF trigger on BIND
> > > rather implementing a
> > > custom authenticator.  However we don't have INSTEAD OF triggers nor
> > > do we have a hook
> > > on the BIND operation.  You planning on completing this stuff soon or
> > > is this something that
> > > you recommend I start looking into?
> >
> >
> > As we've discussed before there are some problems with execution
> > semantics of INSTEAD OF triggers. It especially applies to the search
> > operation. If there are multiple triggers defined on an entry for a search
> > operation, which of them will be executed? This decision is important
> > because search operation returns a response to the client and this will be
> > provided by the stored procedure invoked by the trigger.
> >
> > Alex
> > >
> >
> > I can make a list of problems I have seen about implementing those hooks
> > so we can discuss on them. WDYT?
> >
> > --
> > Ersin Er
> > http://www.ersin-er.name
>
>
>


-- 
Ersin Er
http://www.ersin-er.name

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