* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetP_expression_block(ExpressionBlockAst newP_expression_block, NotificationChain msgs) {
ExpressionBlockAst oldP_expression_block = p_expression_block;
p_expression_block = newP_expression_block;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, QvtAstPackage.EXPRESSION_BLOCK_EXPRESSION_STATEMENT_AST__PEXPRESSION_BLOCK, oldP_expression_block, newP_expression_block);
if (msgs == null) msgs = notification; else msgs.add(notification);
}