* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetExpression(Expression newExpression, NotificationChain msgs)
{
Expression oldExpression = expression;
expression = newExpression;
if (eNotificationRequired())
{
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, KappaPackage.OBSERVE__EXPRESSION, oldExpression, newExpression);
if (msgs == null) msgs = notification; else msgs.add(notification);