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You're all in the business of software development. Some of you are architects and developers while few others are technology managers and executives. For many of you, ESB is encroaching and JBI is still an unknown—a risk previously avoided but now found to be inescapable. Let us tame these buzzwords in the context of SOA
and Integration.
While you do the day to day programming for solving business problems, you will be generating business code as well as business integration code. The traditional Java/J2EE APIs provide you with enough tools and frameworks to do the business coding. The business code will help you to implement a business service such as creating orders or finding products. On the contrary, business integration code wires together multiple applications and systems to provide seamless information flow. It deals with patterns of information exchange across systems and services, among other things. This is where the new Java API for Integration—Java Business Integration (JBI) seeks attention.
JBI provides a collaboration framework which has standard interfaces for integration components and protocols to plug into, thus allowing the assembly of Service Oriented Integration (SOI) frameworks following the Enterprise Service Bus (ESB) pattern. JBI is based on JSR 208, which is an extension of Java 2 Enterprise Edition (J2EE). The book first discusses the various integration approaches available and introduces ESB, which is a new architectural pattern which can facilitate integrating services. In doing so, we also introduce ServiceMix, an Apache Open Source Java ESB. Thus for each of the subsequent chapters, we limit our discussion to a major concern which we can address using ESB and then also showcase this with samples which you can run using ServiceMix. If you are a person with a non-Java background, the book still benefits you since most of the integration wiring happens in XML configuration files. |
