* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetP_access_usage(AccessUsageAst newP_access_usage, NotificationChain msgs) {
AccessUsageAst oldP_access_usage = p_access_usage;
p_access_usage = newP_access_usage;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, QvtAstPackage.ACCESS_DECL_AST__PACCESS_USAGE, oldP_access_usage, newP_access_usage);
if (msgs == null) msgs = notification; else msgs.add(notification);
}