Sun Java System Message Queue (Message Queue) is a standards-based solution to the problem of inter-application communication and reliable message delivery. Message Queue is an enterprise messaging system that implements the Java Message Service (JMS) open standard.
In addition to being a JMS provider, Message Queue has features that exceed the minimum requirements of the JMS specification. With the Message Queue software, processes running on different platforms and operating systems can connect to a common Message Queue service to send and receive information. Application developers are free to focus on the business logic of their applications, rather than on the low-level details of how their applications communicate across a network.
Message Queue is available in two editions:
Enterprise Edition (default). Provides support for multi-broker message services, HTTP/HTTPS connections, secure and scalable connections, client connection failover, and client support for the C language. This edition is best suited to deploying and running messaging applications in a large-scale production environment.
Platform Edition. Provides basic JMS support, and is best suited to small-scale deployments and development environments
The Java ES installer provides Message Queue Enterprise Edition and Message Queue Platform Edition as separately installable components.