Does a JMS environment represent a client/server distributed system?
The act of serving, like beauty, is in the eye of the beholder. Any application that provides services to another application is a server. The JMS message broker provides both direct and indirect services:
- Managing destinations, that is, queues and the topic hierarchy
- Message brokering
- Reliable communication, configurable for both persistence and durability
- Many implementations provide clustering, load balancing, and so on
Applications that connect to and use the JMS broker are its clients.