This section provides information on various operational aspects of Natural Messaging.
If the Natural interface for messaging is available, the license check is performed when you start a Natural session. Buffers for Natural Messaging are allocated when the first message access takes place.
Accessing messaging systems from Natural works similarly to accessing a database. The
Natural Messaging product is delivered with a predefined DDM called MQ-QUEUE
(see Natural Statements and View Description with
Natural Messaging). The Natural PROCESS statement is used to get messages from a message
queue or to put messages on a message queue. The FIND statement can be used to browse a message queue.
Natural handles all required calls to the messaging system internally (for example, connecting to a queue manager or opening a queue).
Buffers for Natural Messaging calls are only allocated in the Natural thread when
necessary. The payload of a message may become quite large. The predefined DDM
MQ-QUEUE contains the MESSAGE field, which contains the
payload. Multiple length options are provided (for example, MESSAGE-10K and
MESSAGE-100K). Select the field that is suitable for your application. You
must ensure that the selected MESSAGE field fits in your Natural thread.
