Developing CA Gen WebSphere MQ Applications

To understand how CA Gen uses WebSphere MQ, you must understand the following concepts:

A CA Gen Distributed Processing (DP) application is a client/server application, where the client exchanges a cooperative flow request with the server.
CA Gen applications make use of the Request/Response type of application behavior, exchanging WebSphere MQ request and reply messages. Client interaction with servers is considered to be time dependent. A CA Gen application is considered tightly coupled, in that the client and server are considered to be logically bound together while the cooperative flow is processed.
CA Gen applications do not use WebSphere MQ syncpoint coordination. Message Put and Get requests operate outside the WebSphere MQ unit-of-work protocol. Put requests are immediately written to the queue, and Get requests immediately remove messages from the queue. That is, no application syncpoint is necessary for these operations to take effect.
CA Gen WebSphere MQ applications do not require that their queues be persistent. The persistence attribute for a given message is determined by the default persistence value (DEFPSIST) associated with the target message queue. The queue manager maintains the attributes of the target queue.

Note: For more information about WebSphere MQ, see the appropriate documentation from IBM.

This section contains the following topics: