| Used to decorate
EventListener to denote whether the event
for the listener can be deferred.
By default (without implementing
Deferrable ), the event is
sent to the server immediately when it is triggered at the client.
To make a listener deferrable, you have to implement
Deferrable and return true for
Deferrable.isDeferrable .
Then, the event won't be sent until another non-deferrable
event is about to send to the server.
The deferrable events are used to improve the performance by minimizing
the traffic between the clients and the server.
It is usully used
for event listeners that maintains the application states, rather
than generating visual responses.
author:
tomyeh
See Also: EventListener |