However , feature of an underlying protocol may be selected through configuration .
Messaging features ( e.g. threading model , QoS , etc . ) are limited to a simpler subset that represent the intersection of all of the underlying middleware options .
Feature of an underlying protocol may be selected through configuration .
Messaging features ( e.g. threading model , QoS , etc . ) are limited to a simpler subset that represent the intersection of all of the underlying middleware options .