[Embedlets-dev] Re: Event Manager

[Andrzej J. T. <an...@ch...>]

Ted asks:

> If the Embedlet produces SwitchEvents, does this mean that every other
> Embedlet in the application that consumes SwitchEvents will be forced to
> subscribe to this event source?
> 
> What if one had 10 JAPL input bits that were being polled by 10 Embedlets
> which all generated SwitchEvents?  Would all SwitchEvent consumers in the
> application be forced to subscribe to all of these event sources?

The Embedlet Event Manager service will provide the ability for an event 
consumer to specify criteria for the events they want to receive, and 
this will include more than just the "type" of the event (since that is 
pretty coarse grained).  

You'll be able to subscribe to events by:

	- event type
	- producer (specific sender)
	- various other properties (either user or system properties in the 
       event).
	- Any combination of the above.

So a particular event consumer (eg. an embedlet) will be able to receive 
only the events it really wants to get and no others.

Might also add the ability for a producer to specify a specific 
consumer(s) that are allowed to receive a specific event (might be useful 
for security).

Does that answer your concern, Ted?

...Andrzej

Chaeron Corporation
http://www.chaeron.com