package org.apidesign.apifest08.currency;

 import java.math.BigDecimal;

 import java.util.Currency;

 import java.util.Date;

 public interface TimedConvertor

     extends Convertor

 {

     BigDecimal convert(Currency   from, 

                        Currency   to, 

                        BigDecimal amount,

                        Date       date)

         throws InvalidConversionException;

     boolean canConvert(Currency from, Currency to, Date date);

 }