These need to be checked with the java scripting api.

The lifecycle methods of the script will be defined with a java interface. This will make it easy to call the script from java, and make it possible to implement it in Java (instead of script).

The context of the script is implemented as a concrete object with methods and get and set properties. In the script these methods and properties will be available directly without specifying an object. If the script is written in java, the context will be passed to it through the constructor.