[ZODB-Dev] Server Notification?

[Chris Spencer]

I'm writing a program to graphically represent certain objects on a ZEO 
server. Is there a way to make the server execute code on the client to 
notify it of changes, or does the client have to continually poll all 
watches objects for changes?

Also, is any information about client connections accessible by clients 
themselves? For instance, can one client ask the server how many other 
clients are currently connected, and which have read-only permission?

Regards,
Chris