Interface which all OpenWebBeans plugins has to implement to extend the webbeans-core with additional IOC functionality.

There are 4 different types of functions for this interface:

1. plugin lifecycle like {@code #startUp()} and {@code #shutDown()}
2. check functions which will be called when a class is scanned like {@code #isSimpleBeanClass(Class)}
3. injection preparation functions will be called once when the bean is being scanned like TODO
4. injection execution will be called every time a been get's injected like {@code #injectResource(Type, Annotation[])}

OpenWebBeans plugins are used to extend 'core' functionality of the injection mechanism with functionality of other frameworks.

Core functionality are all parts which are available in a standard JDK-1.5 SE runtime.