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From Kiran Ayyagari <kayyag...@apache.org>
Subject Re: Async operations callbacks support
Date Wed, 02 Jan 2013 14:04:28 GMT
and at the same time no dependency on another lib (guava etc.) please

On Wed, Jan 2, 2013 at 7:31 PM, Emmanuel Lécharny <elecharny@gmail.com>wrote:

> Le 1/2/13 2:26 PM, Piotr Bzdyl a écrit :
> > Hello,
> >
> > I started looking at the LDAP Client API and noticed that is doesn't
> > support callbacks on the futures returned by various
> > LdapAsyncConnection methods.
> >
> > Was it considered to add such callbacks? It could be easily
> > implemented by extending ListenableFuture from Guava library instead
> > of implementing bare j.u.c.Future. All implementing classes (e.g.
> > AddFuture) could be implemented by extending SettableFuture so it
> > shouldn't involve much coding.
>
> That's an interesting question. Currently, we assumed that we get back a
> Future, and the client is responsible to call it when it needs some
> result. Most of the time, it's just cosmetic, as you should get the
> result immediately, except for requests like Search, Persistent Search
> and Replication.
>
> But in some case, it could be interesting not to block on a
> Future.get(), but to pass a callback which gets executed when the
> response arrives. It should be a minor extensio to the existing API. We
> can even do that without any Future : something like void search(
> Callback callback, Dn baseDn, String filter, SearchScope scope,
> String... attributes ).
>
> We welcome any patch :)
>
> --
> Regards,
> Cordialement,
> Emmanuel Lécharny
> www.iktek.com
>
>


-- 
Kiran Ayyagari
http://keydap.com

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