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From Kiran Ayyagari <kayyag...@apache.org>
Subject Re: DN and valueOf( "<a DN>" ) method
Date Wed, 28 Jul 2010 09:06:18 GMT
On Wed, Jul 28, 2010 at 2:26 PM, Emmanuel Lecharny <elecharny@gmail.com> wrote:
>  Hi guys,
>
> I was thinking lately about the DN class. I know that OpenDS (and probably
> UnboundId, but not sure) has a DN.valueOf( "<a DN>" ) factory that returns a
> DN potentially leveraging a cache associated to a ThreadLocal.
>
> At first, I thought this was an excellent idea, and started to implement
> such a method in the DN class, but I didn't had time to finalize the code,
> so I let it beside for a while.
>
> Now that I have had a bit of discussion about caching strategy inside a
> server, I'm coming  back to this specific valueOf() method.
>
> I don't think it's such a good idea :
> - first, as it's ThreadLocal based, you will have as many cache as you have
> threads processing requests. Not sure it competes with a unique cache, not
> sure either we can't use the memory in a better way...
> - second, this is a server side cache : we don'yt need it on the client side
> (or, more specifically, if we need it, then I don't think it deserves to be
> managed by the DN class)
>
> I would rather define a dedicated class, with a static method - a factory -,
> something like :
> DnFactory, with a createDn( "<a DN>" ) method. This factory will handle its
> cache, which will be global.
yeap, global cache sounds cool, will experiment with it

thanks Emmanuel

Kiran Ayyagari

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