JSP/Java Widgets
From version 3.0, the Widget Framework's preferred widget
architecture retains the JSP view templates, but implements all the
controller logic in Java. There is no controller
folder in the widget's template tree and all the controller
functionality is provided by a Java class. All the core widgets
supplied with Widget Framework 3.0 or later are JSP/Java-based
widgets. It is, however, still possible to make widgets of your own
using the pure JSP method.
For detailed instructions on how to write a Java controller for a Java/JSP widget, seeWriting a Java Controller.