1.1 --- a/task1/solution06/src/org/apidesign/apifest08/currency/Bid.java Tue Sep 30 12:24:45 2008 +0200
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,74 +0,0 @@
1.4 -package org.apidesign.apifest08.currency;
1.5 -
1.6 -import java.math.BigDecimal;
1.7 -import java.math.RoundingMode;
1.8 -import java.util.Currency;
1.9 -import static org.apidesign.apifest08.currency.Assert.*;
1.10 -
1.11 -
1.12 -/**
1.13 - * A bid representation. A did is defined as two currenncies and its value.
1.14 - */
1.15 -public final class Bid {
1.16 - private final Currency first;
1.17 - private final Currency second;
1.18 - private final BigDecimal bidValue; // a bid between the first currency and the second currency
1.19 - public static final BigDecimal one = new BigDecimal(1);
1.20 -
1.21 - Bid(Currency first, Currency second, BigDecimal bid) {
1.22 - notNull(first, "first");
1.23 - notNull(second, "second");
1.24 - this.first = first;
1.25 - this.bidValue = bid;
1.26 - this.second = second;
1.27 - }
1.28 -
1.29 - Bid(Currency first, Currency second) {
1.30 - notNull(first, "first");
1.31 - notNull(second, "second");
1.32 - this.first = first;
1.33 - this.second = second;
1.34 - this.bidValue = null;
1.35 - }
1.36 -
1.37 -
1.38 - BigDecimal getBidValue(Currency from, Currency to) {
1.39 - if((from != first || from != second) || (to != first || to != second)) {
1.40 - new IllegalArgumentException("This bid can be used only for: " + first + " " + second);
1.41 - }
1.42 -
1.43 - notNull(bidValue, "bidValue");
1.44 -
1.45 - BigDecimal retVal;
1.46 -
1.47 - if(first == from) {
1.48 - retVal = bidValue;
1.49 - } else {
1.50 - //reverse bid
1.51 - retVal = one.divide(bidValue, 10 ,RoundingMode.HALF_UP);
1.52 - }
1.53 -
1.54 - return retVal;
1.55 - }
1.56 -
1.57 - @Override
1.58 - public int hashCode() {
1.59 - final int prime = 31;
1.60 - int result = 1;
1.61 - result = prime * result + first.hashCode() + second.hashCode();
1.62 - return result;
1.63 - }
1.64 -
1.65 - @Override
1.66 - public boolean equals(Object obj) {
1.67 - if (this == obj)
1.68 - return true;
1.69 - if (obj == null)
1.70 - return false;
1.71 - if (getClass() != obj.getClass())
1.72 - return false;
1.73 - Bid other = (Bid) obj;
1.74 -
1.75 - return (this.first == other.first || this.first == other.second) && (this.second == other.second || this.second == other.first) ;
1.76 - }
1.77 -}
1.78 \ No newline at end of file