Asynchronous Messages
Message exchanges may be Asynchronous, whereby the message
consumer does not wait for the response for a request by blocking its own
processes pending the arrival of the response to the asynchronous message. The
provider is either aware of the address where the response will be sent, or is
provided with such an address in the asynchronous itself. Synchronous messages
are the alternative to asynchronous messages.
Asynchronous messages are more efficient than
synchronous messages and are the recommended style of exchange, although,
synchronous messages are required in many scenarios.
