* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetP_default_val(DefaultValAst newP_default_val, NotificationChain msgs) {
DefaultValAst oldP_default_val = p_default_val;
p_default_val = newP_default_val;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, QvtAstPackage.ASSIGN_ASSIGN_EXP_AST__PDEFAULT_VAL, oldP_default_val, newP_default_val);
if (msgs == null) msgs = notification; else msgs.add(notification);
}