Chapter Six. Middleware Basics

This is an introductory chapter, thus not for readers who already have a working knowledge of middleware. Having said that, it's probably not a bad idea for those of you who need a refresher to run through the basics again, including messaging, RPCs, distributed objects, and transaction servers. If you have no need to review these concepts, this can be a jumping-off point for the next several chapters, which cover middleware concepts and technology.

It is important to understand these concepts as we move forward in the book. Many of the more advanced and stylish notions, including Web services, are based on existing middleware models. For example, those who already understand distributed objects will have no problem ...

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