[jbosscache-dev] Notifier - performance optimization

Hi, There is place for some performance optimization with respect to the notification mechanism, in the Notifier class: 1) there are defensive Maps being created for being passed in the pre/post notifications, even if no listeners are registered. 2) even if we do not have listeners for a certain event, there is still a lookup in the listeners map to check for the available list of listeners Optimizations: for 1) - do not trigger a notification if no listener registered, use a guard - similar to log.isTraceEnabled() for 2) - rather than keeping a map with listeners registered for each annotation type, rather keep the listeners list as a member - this way we'll skip the list lookup. Another thing that just come into my mind is not iterating on the list of listeners but rather use sequential access - small gain though. I expect this would gain us some performance, especially in the standalone mode. WDYT? Cheers, Mircea