1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/task4/solution11/src/org/apidesign/apifest08/currency/StaticExchangeRateProvider.java	Fri Oct 17 17:34:40 2008 +0200
     1.3 @@ -0,0 +1,48 @@
     1.4 +package org.apidesign.apifest08.currency;
     1.5 +
     1.6 +/**
     1.7 + * Static exchange rate provider.
     1.8 + * 
     1.9 + * @author ked
    1.10 + */
    1.11 +final class StaticExchangeRateProvider<AmountType, IdentifierType> implements ExchangeRateProvider<AmountType, IdentifierType> {
    1.12 +
    1.13 +    final ExchangeRateValue<AmountType, IdentifierType> exchangeRate;
    1.14 +
    1.15 +    private StaticExchangeRateProvider(ExchangeRateValue<AmountType, IdentifierType> exchangeRate) {
    1.16 +        this.exchangeRate = exchangeRate;
    1.17 +    }
    1.18 +
    1.19 +    public void getExchangeRate(ExchangeRateRequest<AmountType, IdentifierType> request, ExchangeRateResponse<AmountType, IdentifierType> response) {
    1.20 +        response.setExchangeRate(exchangeRate);
    1.21 +    }
    1.22 +
    1.23 +    static <AmountType, IdentifierType> StaticExchangeRateProvider<AmountType, IdentifierType> getStaticExchangeRateProvider(ExchangeRateValue<AmountType, IdentifierType> exchangeRate) {
    1.24 +        return new StaticExchangeRateProvider<AmountType, IdentifierType>(exchangeRate);
    1.25 +    }
    1.26 +
    1.27 +    @Override
    1.28 +    public boolean equals(Object obj) {
    1.29 +        if (obj == null) {
    1.30 +            return false;
    1.31 +        }
    1.32 +
    1.33 +        if (getClass() != obj.getClass()) {
    1.34 +            return false;
    1.35 +        }
    1.36 +
    1.37 +        final StaticExchangeRateProvider other = (StaticExchangeRateProvider) obj;
    1.38 +        if (this.exchangeRate != other.exchangeRate && (this.exchangeRate == null || !this.exchangeRate.equals(other.exchangeRate))) {
    1.39 +            return false;
    1.40 +        }
    1.41 +
    1.42 +        return true;
    1.43 +    }
    1.44 +
    1.45 +    @Override
    1.46 +    public int hashCode() {
    1.47 +        int hash = 7;
    1.48 +        hash = 67 * hash + (this.exchangeRate != null ? this.exchangeRate.hashCode() : 0);
    1.49 +        return hash;
    1.50 +    }
    1.51 +}