This book is a thorough introduction to Java Message Service (JMS), the standard Java application program interface (API) from Sun Microsystems that supports the formal communication known as "messaging" between computers in a network. JMS provides a common interface to standard messaging protocols and to special messaging services in support of Java programs. The messages exchange crucial data between computers, rather than between users--information such as event notification and service requests. Messaging is often used to coordinate programs in dissimilar systems or written in different programming languages.
Using the JMS interface, a programmer can invoke the messaging services of IBM's MQSeries, Progress Software's SonicMQ, and other popular messaging product vendors. In addition, JMS supports messages that contain serialized Java objects and messages that contain Extensible Markup Language (XML) pages.
Messaging is a powerful new paradigm that makes it easier to uncouple different parts of an enterprise application. Messaging clients work by sending messages to a message server, which is responsible for delivering the messages to their destination. Message delivery is asynchronous, meaning that the client can continue working without waiting for the message to be delivered. The contents of the message can be anything from a simple text string to a serialized Java object or an XML document.
Java Message Service shows how to build applications using the point-to-point and publish-and-subscribe models; how to use features like transactions and durable subscriptions to make an application reliable; and how to use messaging within Enterprise JavaBeans. It also introduces a new EJB type, the MessageDrivenBean, that is part of EJB 2.0, and discusses integration of messaging into J2EE.
The book is great. I was reading it a few weeks ago and really enjoyed it. Most probably we SHOULD encourage parctical programmers to WRIET more books like this. The book I've read before this one (I don't even remember the name) was so boring and ABSTRACT that I didn't even finish the first chapter. This one, though, is pretty down to earht and practical. Thumbs up!
This is a very good introductory book on java message service. This book is has a very nice and light reading. Nevertheless you are presented with a very complete approach to the specification. Furthermore you are warned for different architectures pros and cons for all of them. Queue and topics are discussed in a very productive way. You JMS on J2EE is discussed as well as JMS on spring. The only one downside of the book is some degree of repetitiveness on some of the contents. On an overall perspective we must say that this is a good technical book as is norma with O'Reilly
This book on JMS does a decent job of introducing Java messaging and has good sample code. Where it falls short is in the places where JMS itself falls short. It glosses over JMS shortcomings and doesn't say much at all on approaches one might take to work around them.
Even so, it's a good introduction and worthwhile for anyone who needs to learn about JMS.