If a judge makes an order requiring notice to be given, does the judge have the authority to vary or revoke the order?

I should note that, in my view, if I erred in not requiring notice to be given, the proper remedy is an appeal. The above quoted passage from R v. Adams indicates that, as a general rule, the judge who made the order may vary or revoke it if the circumstances that were present at the time the order was made have materially changed. The case does not contemplate the judge varying or revoking on the basis that he erred in making the order.