JBI Component Framework
JCF (JBI Component Framework) is a ServiceMix subproject aiming at simplifying the writing of standard JBI components. This helps you focusing on the business logic (for a Service Engine) or the protocol side (Binding Component), instead of having to dive into the JBI Api and the JBI specification (though the spec is really readable, an overview is given here).
Concepts
Service Engines
This tutorial will help you creating a Service Engine using ServiceMix JCF.
Binding Components
This tutorial will guide your through the different steps needed to create a Binding Component using ServiceMix JCF.