void |
ServerConfigurationService.registerListener(ServerConfigurationService.ConfigurationListener configurationListener)
Register a listener which will be notified whenever there is a configuration setting change,
there is no need to unregister a listener as all listener references will be held weakly
(if there are no more variables which reference the listener then it will be GCed and removed from the list of listeners)
Registering the same ServerConfigurationService.ConfigurationListener object multiple times has no effect |