private void addListenerIfNeeded(Component allEffortComponent) {
if (isEffortDurationBoxDisabled()) {
return;
}
final EffortDurationBox effortDurationBox = (EffortDurationBox) allEffortComponent;
effortDurationBox.addEventListener(Events.ON_CHANGE,
new EventListener() {
@Override
public void onEvent(Event event) {
EffortDuration value = effortDurationBox