>> As to the context type, I would be interested to know of cases where the 
>> observer doesn't have control over the context. My understanding is that the 
>> context is something that the observer sets itself when calling addObserver, 
>> and it is passed back to itself in the above method call. So the observer 
>> should know what kind of entity the context is, and can determine the best 
>> way to compare this value.
> Subclasses or superclasses can register observers, so it’s possible for your 
> observer method to get called for observations that you didn’t create.

That makes me wonder: why isn't it possible to register several, different 
observers for the same thing?
That way, I wouldn't need to care about observations I didn't create, would I?

Forgive my ignorance ...

Best regards, 


Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to arch...@mail-archive.com

Reply via email to