Would it be possible to remove the Subject and Observer interfaces or
at least delay them until a later release?
The problem with the Observer interface is that any class implementing
it is only capable of receiving one kind of notification (update) and
there is no capability to send any additional information.
The problem with the Subject interface is that it can also only support
one kind of observer.
Together these are harsh restrictions that would limit the use of these
interfaces to only the most trivial applications. These interfaces are
fine as a textbook example of the observer pattern, but I don't see
them as generally useful enough to have as part of the language.
Regards,
Jeff Moore
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