class DiscountingNotionalExchangePricer implements SwapPaymentEventPricer<NotionalExchange> {

  @Override
  public double currentCash(NotionalExchange event, RatesProvider provider) {
    return paymentPricer.currentCash(event.getPayment(), provider).getAmount();
  }

  public  DiscountingNotionalExchangePricer(DiscountingPaymentPricer paymentPricer);

}