class ComboBoxWidgetViewImpl extends Composite implements ComboBoxWidgetView,
                                                                 ComboBoxView.ModelPresenter,
                                                                 HasValue<String> {

    @PostConstruct
    public void init() {
        // Configure valueField and customValueField controls
        valueComboBox.init(this,
                           true,
                           valueField,
                           customValueField,
                           false,
                           false,
                           CUSTOM_PROMPT,
                           ENTER_TYPE_PROMPT);
    }

}