* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetP_mapping_extension_key(MappingExtensionKeyAst newP_mapping_extension_key, NotificationChain msgs) {
MappingExtensionKeyAst oldP_mapping_extension_key = p_mapping_extension_key;
p_mapping_extension_key = newP_mapping_extension_key;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, QvtAstPackage.MAPPING_EXTENSION_AST__PMAPPING_EXTENSION_KEY, oldP_mapping_extension_key, newP_mapping_extension_key);
if (msgs == null) msgs = notification; else msgs.add(notification);
}