In this chapter, we looked at the core API from ServiceMix as well as from the JBI specification, which will function as useful helper classes using which we can develop lightweight components quickly.

We have also custom coded a JBI component and deployed it into the JBI bus. You may not want to always custom code components. Many times, JBI components will be available as off-the-shelf-libraries. Such components can take part in the message exchanges through the ESB and can provide integration with external services like CICS and CORBA, for example. If by any chance you want to create your own JBI components, then you can follow the guidelines presented in this chapter as a starting point.

As we have covered the standard JBI packaging and deployment model in Chapter 6, we now have enough toolsets to delve deep into JBI and ESB. We will continue our journey by looking at using Spring beans to Spring-wrap an EJB service onto the JBI bus in the next chapter. By doing so, we will expose...