This method is used to apply the values passed from the form back into the model.
the model object after the form values have been applied (The model object may just return itself) exception: UIUnexpectedProgramConditionException - thrown when this widget model does not support editing
This method used primarily for debug purposes. It is expected to output a single string value reflecting the content of the model.
It would be nice to use toString(), but it is impossible to enforce ovverride of this method because it is already defined in the java.lang.Object