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An application's AepEngine handles much of the interaction with SMA on behalf of the application. It manages the lifecycle of an application's message bus bindings, provides send methods and performs dispatch of received messages in a transactionally atomic fashion.

This document outlines the core concepts of SMA as they pertain to an application developer. At a high level a developer thinks in terms of defining the messages that make up an application's interaction grammar and the logical channels on which those messages are transported to wire together the various application participants in the system:

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The MessageView interface defines the interface for a message - the unit of exchange between messaging participants. A Message is a Plain Old Java Object that implements MessageView and provides accessors to message's underlying fields and handles encoding and decoding of the message for transmission. Messages are modeled using ADM.

See the Modeling MessagesMessage and State for more details. 

Message Encoding

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