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1 using System;
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2 using System.Data.SqlTypes;
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3
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4 using KeyValue = System.Collections.Generic.KeyValuePair<System.Type, System.Type>;
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5 using Table = System.Collections.Generic.Dictionary<System.Collections.Generic.KeyValuePair<System.Type, System.Type>, BLToolkit.Mapping.IValueMapper>;
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6
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7 namespace BLToolkit.Mapping
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8 {
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9 [CLSCompliant(false)]
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10 public interface IMapDataSource
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11 {
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12 int Count { get; }
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13
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14 Type GetFieldType (int index);
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15 string GetName (int index);
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16 int GetOrdinal (string name);
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17 object GetValue (object o, int index);
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18 object GetValue (object o, string name);
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19
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20 bool IsNull (object o, int index);
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21
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22 bool SupportsTypedValues(int index);
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23
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24 // Simple type getters.
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25 //
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26 [CLSCompliant(false)]
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27 SByte GetSByte (object o, int index);
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28 Int16 GetInt16 (object o, int index);
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29 Int32 GetInt32 (object o, int index);
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30 Int64 GetInt64 (object o, int index);
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31
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32 Byte GetByte (object o, int index);
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33 [CLSCompliant(false)]
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34 UInt16 GetUInt16 (object o, int index);
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35 [CLSCompliant(false)]
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36 UInt32 GetUInt32 (object o, int index);
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37 [CLSCompliant(false)]
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38 UInt64 GetUInt64 (object o, int index);
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39
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40 Boolean GetBoolean (object o, int index);
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41 Char GetChar (object o, int index);
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42 Single GetSingle (object o, int index);
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43 Double GetDouble (object o, int index);
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44 Decimal GetDecimal (object o, int index);
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45 DateTime GetDateTime (object o, int index);
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46 Guid GetGuid (object o, int index);
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47
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48 #if FW2
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49 // Simple type getters.
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50 //
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51 [CLSCompliant(false)]
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52 SByte? GetNullableSByte (object o, int index);
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53 Int16? GetNullableInt16 (object o, int index);
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54 Int32? GetNullableInt32 (object o, int index);
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55 Int64? GetNullableInt64 (object o, int index);
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56
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57 Byte? GetNullableByte (object o, int index);
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58 [CLSCompliant(false)]
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59 UInt16? GetNullableUInt16 (object o, int index);
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60 [CLSCompliant(false)]
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61 UInt32? GetNullableUInt32 (object o, int index);
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62 [CLSCompliant(false)]
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63 UInt64? GetNullableUInt64 (object o, int index);
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64
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65 Boolean? GetNullableBoolean (object o, int index);
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66 Char? GetNullableChar (object o, int index);
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67 Single? GetNullableSingle (object o, int index);
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68 Double? GetNullableDouble (object o, int index);
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69 Decimal? GetNullableDecimal (object o, int index);
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70 DateTime? GetNullableDateTime(object o, int index);
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71 Guid? GetNullableGuid (object o, int index);
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72 #endif
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73
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74 // SQL type getters.
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75 //
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76 SqlByte GetSqlByte (object o, int index);
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77 SqlInt16 GetSqlInt16 (object o, int index);
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78 SqlInt32 GetSqlInt32 (object o, int index);
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79 SqlInt64 GetSqlInt64 (object o, int index);
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80 SqlSingle GetSqlSingle (object o, int index);
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81 SqlBoolean GetSqlBoolean (object o, int index);
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82 SqlDouble GetSqlDouble (object o, int index);
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83 SqlDateTime GetSqlDateTime (object o, int index);
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84 SqlDecimal GetSqlDecimal (object o, int index);
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85 SqlMoney GetSqlMoney (object o, int index);
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86 SqlGuid GetSqlGuid (object o, int index);
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87 SqlString GetSqlString (object o, int index);
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88 }
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89
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90 [CLSCompliant(false)]
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91 public interface IMapDataDestination
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92 {
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93 Type GetFieldType (int index);
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94 int GetOrdinal (string name);
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95 void SetValue (object o, int index, object value);
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96 void SetValue (object o, string name, object value);
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97
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98 void SetNull (object o, int index);
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99
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100 bool SupportsTypedValues(int index);
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101
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102 // Simple type setters.
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103 //
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104 [CLSCompliant(false)]
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105 void SetSByte (object o, int index, SByte value);
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106 void SetInt16 (object o, int index, Int16 value);
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107 void SetInt32 (object o, int index, Int32 value);
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108 void SetInt64 (object o, int index, Int64 value);
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109
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110 void SetByte (object o, int index, Byte value);
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111 [CLSCompliant(false)]
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112 void SetUInt16 (object o, int index, UInt16 value);
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113 [CLSCompliant(false)]
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114 void SetUInt32 (object o, int index, UInt32 value);
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115 [CLSCompliant(false)]
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116 void SetUInt64 (object o, int index, UInt64 value);
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117
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118 void SetBoolean (object o, int index, Boolean value);
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119 void SetChar (object o, int index, Char value);
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120 void SetSingle (object o, int index, Single value);
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121 void SetDouble (object o, int index, Double value);
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122 void SetDecimal (object o, int index, Decimal value);
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123 void SetGuid (object o, int index, Guid value);
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124 void SetDateTime (object o, int index, DateTime value);
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125
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126 #if FW2
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127 // Simple type setters.
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128 //
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129 [CLSCompliant(false)]
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130 void SetNullableSByte (object o, int index, SByte? value);
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131 void SetNullableInt16 (object o, int index, Int16? value);
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132 void SetNullableInt32 (object o, int index, Int32? value);
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133 void SetNullableInt64 (object o, int index, Int64? value);
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134
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135 void SetNullableByte (object o, int index, Byte? value);
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136 [CLSCompliant(false)]
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137 void SetNullableUInt16 (object o, int index, UInt16? value);
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138 [CLSCompliant(false)]
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139 void SetNullableUInt32 (object o, int index, UInt32? value);
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140 [CLSCompliant(false)]
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141 void SetNullableUInt64 (object o, int index, UInt64? value);
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142
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143 void SetNullableBoolean (object o, int index, Boolean? value);
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144 void SetNullableChar (object o, int index, Char? value);
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145 void SetNullableSingle (object o, int index, Single? value);
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146 void SetNullableDouble (object o, int index, Double? value);
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147 void SetNullableDecimal (object o, int index, Decimal? value);
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148 void SetNullableGuid (object o, int index, Guid? value);
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149 void SetNullableDateTime (object o, int index, DateTime? value);
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150 #endif
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151
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152 // SQL type setters.
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153 //
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154 void SetSqlByte (object o, int index, SqlByte value);
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155 void SetSqlInt16 (object o, int index, SqlInt16 value);
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156 void SetSqlInt32 (object o, int index, SqlInt32 value);
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157 void SetSqlInt64 (object o, int index, SqlInt64 value);
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158 void SetSqlSingle (object o, int index, SqlSingle value);
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159 void SetSqlBoolean (object o, int index, SqlBoolean value);
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160 void SetSqlDouble (object o, int index, SqlDouble value);
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161 void SetSqlDateTime(object o, int index, SqlDateTime value);
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162 void SetSqlDecimal (object o, int index, SqlDecimal value);
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163 void SetSqlMoney (object o, int index, SqlMoney value);
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164 void SetSqlGuid (object o, int index, SqlGuid value);
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165 void SetSqlString (object o, int index, SqlString value);
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166 }
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167
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168 [CLSCompliant(false)]
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169 public interface IValueMapper
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170 {
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171 void Map(
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172 IMapDataSource source, object sourceObject, int sourceIndex,
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173 IMapDataDestination dest, object destObject, int destIndex);
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174 }
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175
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176 public static partial class ValueMapping
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177 {
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178 #region Init
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179
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180 private static Table _mappers = new Table();
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181
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182 private static void AddSameType(Type type, IValueMapper mapper)
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183 {
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184 _mappers.Add(new KeyValue(type, type), mapper);
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185 }
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186
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187 #endregion
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188
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189 #region Default Mapper
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190
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191 class DefaultValueMapper : IValueMapper
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192 {
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193 public void Map(
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194 IMapDataSource source, object sourceObject, int sourceIndex,
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195 IMapDataDestination dest, object destObject, int destIndex)
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196 {
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197 dest.SetValue(destObject, destIndex, source.GetValue(sourceObject, sourceIndex));
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198
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199 //object o = source.GetValue(sourceObject, sourceIndex);
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200
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201 //if (o == null) dest.SetNull (destObject, destIndex);
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202 //else dest.SetValue(destObject, destIndex, o);
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203 }
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204 }
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205
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206 private static IValueMapper _defaultMapper = new DefaultValueMapper();
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207 [CLSCompliant(false)]
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208 public static IValueMapper DefaultMapper
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209 {
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210 get { return _defaultMapper; }
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211 set { _defaultMapper = value; }
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212 }
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213
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214 #endregion
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215
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216 #region GetMapper
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217
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218 private static object _sync = new object();
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219
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220 [CLSCompliant(false)]
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221 public static IValueMapper GetMapper(Type t1, Type t2)
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222 {
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223 lock (_sync)
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224 {
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225 if (t1 == null) t1 = typeof(object);
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226 if (t2 == null) t2 = typeof(object);
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227
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228 if (t1.IsEnum) t1 = Enum.GetUnderlyingType(t1);
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229 if (t2.IsEnum) t2 = Enum.GetUnderlyingType(t2);
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230
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231 KeyValue key = new KeyValue(t1, t2);
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232
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233 IValueMapper t;
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234
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235 #if FW2
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236 if (_mappers.TryGetValue(key, out t))
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237 return t;
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238
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239 #else
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240 t = (IValueMapper)_mappers[key];
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241
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242 if (t != null)
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243 return t;
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244
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245 t = _defaultMapper;
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246 #endif
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247 _mappers.Add(key, t);
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248
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249 return t;
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250 }
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251 }
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252
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253 #endregion
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254 }
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255 }
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