1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/task4/solution13/src/org/apidesign/apifest08/currency/IExchangeRateEngine.java Sat Oct 11 23:38:46 2008 +0200
1.3 @@ -0,0 +1,18 @@
1.4 +package org.apidesign.apifest08.currency;
1.5 +
1.6 +/**
1.7 + * Interface for exchange rate engine.
1.8 + *
1.9 + * @author arnostvalicek
1.10 + */
1.11 +public interface IExchangeRateEngine {
1.12 +
1.13 + /**
1.14 + * Get exchange rate for conversion from <code>fromCurrency</code> to <code>toCurrency</code>.
1.15 + *
1.16 + * @param fromCurrency From currency.
1.17 + * @param toCurrency To currency.
1.18 + * @return Returns <code>ExchangeRate</code> if exchange rate is known or <code>null</code> if exchanger rate is not known.
1.19 + */
1.20 + public ExchangeRate getExchangeRate(ConvertorCurrency fromCurrency, ConvertorCurrency toCurrency);
1.21 +}