From: | Tobias Oberstein <tobias(dot)oberstein(at)tavendo(dot)de> |
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To: | Jan Urbański <wulczer(at)wulczer(dot)org> |
Cc: | Daniele Varrazzo <daniele(dot)varrazzo(at)gmail(dot)com>, "psycopg(at)postgresql(dot)org" <psycopg(at)postgresql(dot)org> |
Subject: | Re: NOTIFY in asynchronous mode |
Date: | 2011-11-05 12:37:39 |
Message-ID: | 634914A010D0B943A035D226786325D42D0C0CE428@EXVMBX020-12.exch020.serverdata.net |
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Thread: | |
Lists: | psycopg |
> I think that's a reasonably simple API and one that allows you to do anything
> you want without introducing some extra interfaces that notify observers
> have to implement, just requiring that they are callable.
Yeah, thats fine. So
+ all observers registered on a connection would get notified when a notification
on that connection arrives.
+ a dispatching scheme based on channel can be built on top of above
+ the LISTEN/UNLISTEN is orthogonal to observer registration
+ any callable which takes a first positional argument of type "notify" can be used
+ the whole interface for above is Connection.addNotifyObserver/removeNotifyObserver
, right?
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