D

A special destination used by the message broker to hold undeliverable messages.

A form of inversion of control, where an object’s external dependencies are given to it, either programmatically or through a framework that is driven by configuration information. The result is to decouple dependent objects and allow the dependencies to be resolved at run time.

A logical holding area for messages in a message broker. Clients publish messages to and consume messages from destinations.

See Also queue, topic.

A mechanism that advertises the list of available message brokers to message clients and other message brokers.

See Also dynamic discovery.

A message consumer that receives all messages published on a topic, including those published while the subscriber is inactive.

A mechanism for clients to become aware of the existence of brokers through the use of a discovery agent.

See Also discovery agent.