Method: GET_AVAILABLE_LANGUAGES
Method: CLASS_CONSTRUCTOR
Method: GET_DEFAULT_THEME
Method: IS_THEME_AVAILABLE
Method: GET_AVAILABLE_THEMES
Method: GET_NAME_FORMATS
Method: HANDLE_REQUEST
Method: SET_EXCEPTION
Method: SET_DATA
Method: DO_POST
Method: DO_GET
Method: QUERY_PREF_CHOICES
Method: UPDATE_BASIS_PREFERENCE
Method: ENSURE_PREFERENCE_VALID