Mercurial > silverbladetech

annotate MetroWpf/Stocks.Common/Models/Price.cs @ 121:8f94475d3146 tip

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final code
author stevenh7776
date Thu, 31 May 2012 15:35:26 +0100
parents dfc81f8bb838
children
rev   line source
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1 using Stocks.Common.Core;
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2 using System.Collections;
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3 using System;
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4 using System.Collections.Generic;
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5
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6 namespace Stocks.Common.Models
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7 {
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8 public class Price : IEquatable<Price>, IComparable<Price>, IComparable
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9 {
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10 public string CompanyName { get; set; }
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11 public string Symbol { get; set; }
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12 public decimal CurrentPrice { get; set; }
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13 public decimal PreviousPrice { get; set; }
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14
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15 public Price()
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16 {
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17 }
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18
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19 public Price(
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20 string company,
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21 string symbol,
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22 decimal currentPrice,
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23 decimal previousPrice) : this()
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24 {
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25 CompanyName = company;
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26 Symbol = symbol;
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27 CurrentPrice = currentPrice;
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28 PreviousPrice = previousPrice;
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29 }
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30
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31 public override bool Equals(object obj)
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32 {
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33 if (obj is Price)
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34 return Equals(obj as Price);
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35 else
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36 return false;
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37 }
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38
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39 public bool Equals(Price other)
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40 {
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41 return (CompanyName == other.CompanyName
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42 && Symbol == other.Symbol
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43 && CurrentPrice == other.CurrentPrice
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44 && PreviousPrice == other.PreviousPrice);
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45 }
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46
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47 public int CompareTo(Price other)
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48 {
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49 return Symbol.CompareTo(other.Symbol);
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50 }
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51
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52 public int CompareTo(Price other, PriceComparisonType comparisonType)
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53 {
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54 switch (comparisonType)
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55 {
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56 case PriceComparisonType.NotSet:
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57 case PriceComparisonType.Symbol:
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58 return Symbol.CompareTo(other.Symbol);
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59 case PriceComparisonType.CurrentPrice:
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60 return CurrentPrice.CompareTo(other.CurrentPrice);
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61 case PriceComparisonType.PreviousPrice:
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62 return PreviousPrice.CompareTo(other.PreviousPrice);
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63 default:
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64 throw new Exception("Unknown comparison type");
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65 }
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66 }
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67
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68 public int CompareTo(object obj)
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69 {
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70 Price other;
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71 if (obj is Price)
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72 other = obj as Price;
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73 else
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74 throw new ArgumentException("obj is not a Price");
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75
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76 return CompareTo(other);
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77 }
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78 public override int GetHashCode()
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79 {
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80 int hash = 13;
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81 hash = (hash * 7) + Symbol.GetHashCode();
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82 hash = (hash * 7) + CurrentPrice.GetHashCode();
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83 hash = (hash * 7) + PreviousPrice.GetHashCode();
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84 return hash;
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85 }
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86
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87 public static bool operator ==(Price lhs, Price rhs)
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88 {
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89 if (System.Object.ReferenceEquals(lhs, rhs))
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90 return true;
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91
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92 if (((object)lhs == null) || ((object)rhs == null))
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93 return false;
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94
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95 return lhs.Symbol == rhs.Symbol
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96 && lhs.CurrentPrice == rhs.CurrentPrice
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97 && lhs.PreviousPrice == rhs.PreviousPrice;
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98 }
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99
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100 public static bool operator !=(Price lhs, Price rhs)
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101 {
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102 return !(lhs == rhs);
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103 }
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104
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105
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106 public class PriceComparer : IComparer<Price>, IComparer
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107 {
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108 public PriceComparisonType ComparisonMethod { get; set; }
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109
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110 public int Compare(Price x, Price y)
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111 {
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112 return x.CompareTo(y, ComparisonMethod);
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113 }
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114
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115 public int Compare(object x, object y)
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116 {
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117 Price lhs, rhs;
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118
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119 if (x is Price)
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120 lhs = x as Price;
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121 else
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122 throw new ArgumentException("x is not a Price");
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123
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124 if (y is Price)
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125 rhs = y as Price;
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126 else
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127 throw new ArgumentException("y is not a Price");
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128
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129 return lhs.CompareTo(rhs, ComparisonMethod);
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130 }
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131 }
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132 }
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133
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134 public enum PriceComparisonType { NotSet = 0, Symbol, CurrentPrice, PreviousPrice }
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135 }