Question subject: advantage of the event delegation model over event-inherit
Posted: Thu Nov 06, 2008 10:39 pm
Joined: Sun Oct 19, 2008 3:47 pm Posts: 281 Has thanked: 0 time Have thanks: 1 time
What is the advantage of the event-delegation model over the earlier event-inheritance model?
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Question subject: Re: advantage of the event delegation model over event-inherit
Posted: Thu Nov 06, 2008 10:40 pm
Joined: Sun Oct 19, 2008 3:53 pm Posts: 229 Has thanked: 0 time Have thanks: 0 time
The event-delegation model has two advantages over the event-inheritance model. First, it enables event handling to be handled by objects other than the ones that generate the events (or their containers). This allows a clean separation between a component's design and its use. The other advantage of the event-delegation model is that it performs much better in applications where many events are generated. This performance improvement is due to the fact that the event-delegation model does not have to repeatedly process unhandled events, as is the case of the event-inheritance model.