EventAdapter is the interface that all event adapters must
implement in order to work with the automatic event adapter generation
model. This interface requires that the adapter implement a method
that allows setting the event processor delegated to process the event
after the adapter has received the event from the event source. The
task of any event adapter is to receive the event and then delegate it
to the event processor assigned to it, using either
eventProcessor.processEvent or eventProcessor.processExceptionableEvent.
