* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetStart(StartDate newStart, NotificationChain msgs) {
StartDate oldStart = start;
start = newStart;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, ReservationSystemPackagePackage.LENGTH__START, oldStart, newStart);
if (msgs == null) msgs = notification; else msgs.add(notification);
}