Hi 2016-08-30 8:52 GMT+02:00 Norbert Hartl <[email protected]>:
> I think for the 0 case we should think about instantiating the > SubscriptionRegistry lazily. This would also mitigate the effect that if a > lot of announcers are created they create only a single object instead of > two until used. Of course this depends on the probability of having a lot > of announcers where only a few are used. > The #announce: method looks like it has been lazy before. > > Announcer>>#announce: anAnnouncement > > | announcement | > announcement := anAnnouncement asAnnouncement. > registry ifNotNil: [ > registry deliver: announcement > ]. > ^ announcement > > checks for #ifNotNil: but registry is created in #initialize. So > #ifNotEmpty: would be right here but #deliver: checks that, too. > We always hide announcer instance inside owner. So it could instantiate announcer lazily if such optimization really needed.
