* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetLhs(ValueCalc newLhs, NotificationChain msgs)
{
ValueCalc oldLhs = lhs;
lhs = newLhs;
if (eNotificationRequired())
{
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, UrbanPackage.CONCENTRATION__LHS, oldLhs, newLhs);
if (msgs == null) msgs = notification; else msgs.add(notification);