What is the standing determination for a class action arising out of an invasion of a plaintiff's rights?

Lewis v. Casey , 518 U.S. 343, 358 n.6, 116 S.Ct. 2174, 135 L.Ed.2d 606 (1996) ("The standing determination is quite separate from certification of the class."). Questions about potential aggregation of claims generally should have no bearing on the Article III standing inquiry: a state legislature may recognize a right whose invasion constitutes an injury in fact but may choose for administrative or other reasons to circumscribe the procedural mechanisms through which that right may be vindicated. Why that judgment should govern the actionability of an incursion on legal rights escapes us.