Hi,
I attach a new cornerstone service/block for event notification among services.
It is based on the Event Notifier pattern by Gupta et al. (Java Report, Vol. 3, No. 7, July 1998, 19-36).
It allows services to publish and subscribe to events of interest and be notified of them.
It is useful in that it decouples greatly the services in big phoenix apps.
At present, the implementation is for local interfaces although I've used it successfully in a distributed setting
(via RMI). All is needed to be make the EventManager, Publisher and Register Remote interfaces.
But perhaps one might want to implement other distributed method invocation, in particular AltRMI. It can be improved in several ways but a present I wanted to gauge if there was interest in it.
I also attach a patch to extend the RMIfication service, adding the methods export() and unexport().
There sometimes is the need to export a Remote interface without "publishing" it (ie binding it with a name).
Eg, when a service (whose interface has been RMIfied and published) exposes other remote interfaces
which are only accessible via the service interface (but not direcly via the RMI registry).
Cheers, Mauro
<<attachment: event.zip>>
<<attachment: rmification.zip>>
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