package org.apidesign.apifest08.currency;

 import java.math.BigDecimal;

 /**

  * Provider for conversion constant from any source

  * @author Ladislav Vitasek

  */

 public interface ConversionRatioProvider {

     public BigDecimal getCurrency1ToCurrency2Constant() throws CannotProvideValueException;

     public BigDecimal getCurrency2ToCurrency1Constant() throws CannotProvideValueException;

 }