Message Delivery Order

The JMS IQ Manager provides the following special facilities to maintain message order in concurrent processing and across message destinations. These facilities are in addition to those mandated by the Java Message Server specification.

• Configuring the JMS IQ Manager for special first-in, first-out (FIFO) ordering modes for queues

• Specifying a set of message destinations (a time order group) for which fully serialized processing occurs

• Configuring topics and queues for concurrent or serial processing

The following sections describe each method of processing order. For detailed information about processing order, refer to Message Processing Order.