>> Now I would also like to know the cost of always broadcasting. I do >> not >> remember correctly but in vassili'blog there were some points to >> avoid >> that. > > Yes, broadcasting was the reason why OBPackageBrowser was slow > before we refactored it.
Actually, the sloppiness came from the handlers associated to events. They generated way too many refreshes. Broadcasting events did not appear to be that slow. Users of an event mechanism have the tendencies to broadcast events more than it should be. Alexandre > > >> >> On Oct 31, 2009, at 11:18 PM, Lukas Renggli wrote: >> >>>> In current core image, Announcements is quite small (just around 10 >>>> methods totally) and i doubt it provides enough >>>> flexibility which would not require adding & reinventing additional >>>> useful stuff on top of it. >>> >>> I have used these announcements in many large projects and I never >>> needed to add anything. In fact, I would even vote to remove >>> AnnouncementSet as I never used it or saw it used anywhere. >>> Initially, >>> I found it cool because the same trick is applied in the Exception >>> hierarchy. Major projects like OmniBrowser (and to some extent also >>> Seaside) use an even smaller subset of the functionality provided in >>> the core package. >>> >>> The only thing that is maybe missing are weak announcements. I guess >>> that could be useful, if Pharo provided a solid implementation of >>> weak >>> objects. >>> >>> Lukas >>> >>> -- >>> Lukas Renggli >>> http://www.lukas-renggli.ch >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> [email protected] >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> >> _______________________________________________ >> Pharo-project mailing list >> [email protected] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
