observer pattern (notification chain synchronization)

[Ville M. Vainio]

Alan Isaac <aisaac at american.edu> writes:


> OK, thanks.
>
> Another approach is to begin with a set of stocks
>
> and remove them as they report.  You can then trigger
>
> a report with the empty set instead of repeatedly
>
> calling ``all``. After a report the set can be
>
> "refilled".

Ah, and I obviously didn't read the whole thread before posting ;-)