WebSphere message brokers

Message transformation rules and routing logic are contained in components called message flows that execute within the WebSphere message brokers. These include WebSphere MQ Integrator, WebSphere MQ Integrator Broker, and WebSphere Business Integration Message Broker.

Message flows are invoked by messages that the message listener receives, and these flows put new messages onto queues. Message flows interact with adapters by exchanging XML messages over WebSphere MQ queues.

The adapter framework interacts with the queues through the JMS interface, and translates between business objects in memory and the XML message representation of those objects. The business object definitions associated with an adapter are represented as XML schemas and are readily imported into the WebSphere message broker Message Repository Manager (MRM) for use in message flows.

The adapter is configured through the WebSphere Business Integration System Manager perspective within the Eclipse Workbench. The System Manager also provides basic monitoring and administration capabilities. The adapter receives all its configuration data from a local repository of XML schemas upon start-up.

Figure 5shows how the adapter is deployed with WebSphere Message Brokers.

Figure 5. Adapter deployed with WebSphere Message Brokers

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