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0
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1 using System;
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2 using System.Collections;
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3 using System.Collections.Generic;
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4 using System.Reflection;
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5 using BLToolkit.Data.Sql.SqlProvider;
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6
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7 using BLToolkit.TypeBuilder;
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8
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9 namespace BLToolkit.Reflection.MetadataProvider
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10 {
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11 using DataAccess;
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12 using Extension;
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13 using Mapping;
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14
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15 public class AttributeMetadataProvider : MetadataProviderBase
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16 {
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17 #region Helpers
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18
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19 private TypeAccessor _typeAccessor;
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20 private object[] _mapFieldAttributes;
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21 private object[] _nonUpdatableAttributes;
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22 readonly object _sync = new object();
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23
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24 void EnsureMapper(TypeAccessor typeAccessor)
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25 {
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26 if (_typeAccessor != typeAccessor)
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27 {
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28 _typeAccessor = typeAccessor;
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29 _mapFieldAttributes = null;
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30 _nonUpdatableAttributes = null;
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31 }
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32 }
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33
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34 protected object[] GetMapFieldAttributes(TypeAccessor typeAccessor)
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35 {
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36 lock (_sync)
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37 {
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38 EnsureMapper(typeAccessor);
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39
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40 return _mapFieldAttributes ?? (_mapFieldAttributes = TypeHelper.GetAttributes(typeAccessor.Type, typeof (MapFieldAttribute)));
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41 }
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42 }
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43
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44 object[] GetNonUpdatableAttributes(TypeAccessor typeAccessor)
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45 {
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46 lock (_sync)
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47 {
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48 EnsureMapper(typeAccessor);
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49
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50 return _nonUpdatableAttributes ?? (_nonUpdatableAttributes = TypeHelper.GetAttributes(typeAccessor.Type, typeof(NonUpdatableAttribute)));
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51 }
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52 }
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53
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54 #endregion
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55
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56 #region GetFieldName
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57
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58 public override string GetFieldName(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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59 {
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60 var a = member.GetAttribute<MapFieldAttribute>();
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61
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62 if (a != null && a.MapName != null)
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63 {
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64 isSet = true;
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65 return a.MapName;
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66 }
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67
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68 foreach (MapFieldAttribute attr in GetMapFieldAttributes(member.TypeAccessor))
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69 {
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70 if (attr.MapName != null && string.Equals(attr.OrigName, member.Name, StringComparison.InvariantCultureIgnoreCase))
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71 {
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72 isSet = true;
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73 return attr.MapName;
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74 }
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75 }
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76
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77 return base.GetFieldName(typeExtension, member, out isSet);
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78 }
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79
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80 #endregion
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81
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82 #region GetFieldStorage
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83
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84 public override string GetFieldStorage(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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85 {
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86 var a = member.GetAttribute<MapFieldAttribute>();
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87
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88 if (a != null)
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89 {
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90 isSet = true;
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91 return a.Storage;
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92 }
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93
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94 foreach (MapFieldAttribute attr in GetMapFieldAttributes(member.TypeAccessor))
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95 {
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96 if (string.Equals(attr.OrigName, member.Name, StringComparison.InvariantCultureIgnoreCase))
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97 {
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98 isSet = true;
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99 return attr.Storage;
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100 }
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101 }
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102
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103 return base.GetFieldStorage(typeExtension, member, out isSet);
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104 }
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105
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106 #endregion
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107
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108 #region GetInheritanceDiscriminator
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109
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110 public override bool GetInheritanceDiscriminator(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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111 {
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112 var a = member.GetAttribute<MapFieldAttribute>();
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113
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114 if (a != null)
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115 {
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116 isSet = true;
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117 return a.IsInheritanceDiscriminator;
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118 }
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119
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120 foreach (MapFieldAttribute attr in GetMapFieldAttributes(member.TypeAccessor))
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121 {
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122 if (string.Equals(attr.OrigName, member.Name, StringComparison.InvariantCultureIgnoreCase))
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123 {
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124 isSet = true;
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125 return attr.IsInheritanceDiscriminator;
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126 }
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127 }
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128
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129 return base.GetInheritanceDiscriminator(typeExtension, member, out isSet);
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130 }
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131
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132 #endregion
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133
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134 #region EnsureMapper
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135
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136 public override void EnsureMapper(TypeAccessor typeAccessor, MappingSchema mappingSchema, EnsureMapperHandler handler)
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137 {
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138 foreach (MapFieldAttribute attr in GetMapFieldAttributes(typeAccessor))
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139 {
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140 if (attr.OrigName != null)
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141 handler(attr.MapName, attr.OrigName);
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142 else
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143 {
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144 var ma = typeAccessor[attr.MapName];
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145
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146 foreach (MemberMapper inner in mappingSchema.GetObjectMapper(ma.Type))
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147 handler(string.Format(attr.Format, inner.Name), ma.Name + "." + inner.MemberName);
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148 }
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149 }
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150 }
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151
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152 #endregion
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153
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154 #region GetMapIgnore
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155
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156 public override bool GetMapIgnore(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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157 {
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158 var attr = member.GetAttribute<MapIgnoreAttribute>() ?? (MapIgnoreAttribute)TypeHelper.GetFirstAttribute(member.Type, typeof(MapIgnoreAttribute));
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159
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160 if (attr != null)
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161 {
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162 isSet = true;
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163 return attr.Ignore;
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164 }
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165
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166 if (member.GetAttribute<MapFieldAttribute>() != null ||
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167 member.GetAttribute<MapImplicitAttribute>() != null ||
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168 TypeHelper.GetFirstAttribute(member.Type, typeof(MapImplicitAttribute)) != null)
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169 {
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170 isSet = true;
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171 return false;
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172 }
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173
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174 return base.GetMapIgnore(typeExtension, member, out isSet) || member.GetAttribute<AssociationAttribute>() != null;
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175 }
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176
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177 #endregion
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178
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179 #region GetMapField
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180
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181 public override MapFieldAttribute GetMapField(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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182 {
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183 var attr = member.GetAttribute<MapFieldAttribute>() ?? (MapFieldAttribute)TypeHelper.GetFirstAttribute(member.Type, typeof(MapFieldAttribute));
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184
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185 if (attr != null)
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186 {
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187 isSet = true;
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188 return attr;
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189 }
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190
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191 return base.GetMapField(typeExtension, member, out isSet);
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192 }
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193
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194 #endregion
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195
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196 #region GetDbType
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197
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198 [CLSCompliant(false)]
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199 public override DbTypeAttribute GetDbType(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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200 {
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201 var attr = member.GetAttribute<DbTypeAttribute>() ?? (DbTypeAttribute)TypeHelper.GetFirstAttribute(member.Type, typeof(DbTypeAttribute));
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202
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203 if (attr != null)
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204 {
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205 isSet = true;
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206 return attr;
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207 }
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208
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209 return base.GetDbType(typeExtension, member, out isSet);
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210 }
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211
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212 #endregion
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213
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214 #region GetPrimaryKey
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215
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216 public override PrimaryKeyAttribute GetPrimaryKey(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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217 {
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218 var attr = member.GetAttribute<PrimaryKeyAttribute>() ?? (PrimaryKeyAttribute)TypeHelper.GetFirstAttribute(member.Type, typeof(PrimaryKeyAttribute));
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219
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220 if (attr != null)
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221 {
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222 isSet = true;
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223 return attr;
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224 }
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225
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226 return base.GetPrimaryKey(typeExtension, member, out isSet);
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227 }
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228
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229 #endregion
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230
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231 #region GetTrimmable
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232
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233 public override bool GetTrimmable(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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234 {
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235 if (member.Type == typeof(string))
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236 {
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237 var attr = member.GetAttribute<TrimmableAttribute>();
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238
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239 if (attr != null)
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240 {
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241 isSet = true;
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242 return attr.IsTrimmable;
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243 }
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244
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245 attr = (TrimmableAttribute)TypeHelper.GetFirstAttribute(
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246 member.MemberInfo.DeclaringType, typeof(TrimmableAttribute));
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247
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248 if (attr != null)
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249 {
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250 isSet = true;
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251 return attr.IsTrimmable;
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252 }
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253 }
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254
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255 return base.GetTrimmable(typeExtension, member, out isSet);
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256 }
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257
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258 #endregion
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259
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260 #region GetMapValues
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261
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262 public override MapValue[] GetMapValues(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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263 {
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264 List<MapValue> list = null;
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265
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266 object[] attrs = member.GetAttributes<MapValueAttribute>();
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267
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268 if (attrs != null)
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269 {
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270 list = new List<MapValue>(attrs.Length);
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271
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272 foreach (MapValueAttribute a in attrs)
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273 list.Add(new MapValue(a.OrigValue, a.Values));
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274 }
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275
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276 attrs = member.GetTypeAttributes(typeof(MapValueAttribute));
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277
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278 var memberType = TypeHelper.UnwrapNullableType(member.Type);
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279
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280 if (attrs != null && attrs.Length > 0)
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281 {
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282 if (list == null)
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283 list = new List<MapValue>(attrs.Length);
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284
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285 foreach (MapValueAttribute a in attrs)
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286 if (a.Type == null && a.OrigValue != null && a.OrigValue.GetType() == memberType ||
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287 a.Type is Type && (Type)a.Type == memberType)
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288 list.Add(new MapValue(a.OrigValue, a.Values));
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289 }
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290
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291 var typeMapValues = GetMapValues(typeExtension, memberType, out isSet);
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292
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293 if (list == null)
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294 return typeMapValues;
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295
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296 if (typeMapValues != null)
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297 list.AddRange(typeMapValues);
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298
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299 isSet = true;
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300
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301 return list.ToArray();
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302 }
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303
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304 const FieldAttributes EnumField = FieldAttributes.Public | FieldAttributes.Static | FieldAttributes.Literal;
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305
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306 static List<MapValue> GetEnumMapValues(Type type)
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307 {
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308 var list = null as List<MapValue>;
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309 var fields = type.GetFields();
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310
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311 foreach (var fi in fields)
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312 {
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313 if ((fi.Attributes & EnumField) == EnumField)
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314 {
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315 var enumAttributes = Attribute.GetCustomAttributes(fi, typeof(MapValueAttribute));
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316
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317 foreach (MapValueAttribute attr in enumAttributes)
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318 {
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319 if (list == null)
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320 list = new List<MapValue>(fields.Length);
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321
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322 var origValue = Enum.Parse(type, fi.Name, false);
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323
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324 list.Add(new MapValue(origValue, attr.Values));
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325 }
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326 }
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327 }
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328
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329 return list;
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330 }
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331
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332 public override MapValue[] GetMapValues(TypeExtension typeExtension, Type type, out bool isSet)
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333 {
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334 List<MapValue> list = null;
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335
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336 if (TypeHelper.IsNullable(type))
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337 type = type.GetGenericArguments()[0];
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338
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339 if (type.IsEnum)
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340 list = GetEnumMapValues(type);
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341
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342 var attrs = TypeHelper.GetAttributes(type, typeof(MapValueAttribute));
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343
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344 if (attrs != null && attrs.Length != 0)
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345 {
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346 if (list == null)
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347 list = new List<MapValue>(attrs.Length);
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348
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349 for (var i = 0; i < attrs.Length; i++)
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350 {
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351 var a = (MapValueAttribute)attrs[i];
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352 list.Add(new MapValue(a.OrigValue, a.Values));
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353 }
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354 }
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355
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356 isSet = list != null;
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357
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358 return isSet? list.ToArray(): null;
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359 }
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360
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361 #endregion
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362
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363 #region GetDefaultValue
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364
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365 public override object GetDefaultValue(MappingSchema mappingSchema, TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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366 {
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367 // Check member [DefaultValue(0)]
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368 //
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369 var attr = member.GetAttribute<DefaultValueAttribute>();
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370
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371 if (attr != null)
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372 {
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373 isSet = true;
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374 return attr.Value;
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375 }
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376
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377 // Check type [DefaultValues(typeof(int), 0)]
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378 //
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379 var attrs = member.GetTypeAttributes(typeof(DefaultValueAttribute));
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380
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381 foreach (DefaultValueAttribute a in attrs)
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382 if (a.Type == null && a.Value != null && a.Value.GetType() == member.Type ||
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383 a.Type != null && a.Type == member.Type)
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384 {
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385 isSet = true;
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386 return a.Value;
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387 }
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388
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389 return GetDefaultValue(mappingSchema, typeExtension, member.Type, out isSet);
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390 }
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391
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392 public override object GetDefaultValue(MappingSchema mappingSchema, TypeExtension typeExtension, Type type, out bool isSet)
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393 {
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394 object value = null;
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395
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396 if (type.IsEnum)
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397 value = GetEnumDefaultValueFromType(type);
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398
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399 if (value == null)
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400 {
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401 var attrs = TypeHelper.GetAttributes(type, typeof(DefaultValueAttribute));
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402
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403 if (attrs != null && attrs.Length != 0)
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404 value = ((DefaultValueAttribute)attrs[0]).Value;
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405 }
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406
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407 isSet = value != null;
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408
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409 return TypeExtension.ChangeType(value, type);
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410 }
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411
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412 private static object GetEnumDefaultValueFromType(Type type)
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413 {
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414 var fields = type.GetFields();
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415
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416 foreach (var fi in fields)
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417 {
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418 if ((fi.Attributes & EnumField) == EnumField)
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419 {
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420 var attrs = Attribute.GetCustomAttributes(fi, typeof(DefaultValueAttribute));
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421
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422 if (attrs.Length > 0)
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423 return Enum.Parse(type, fi.Name, false);
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424 }
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425 }
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426
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427 return null;
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428 }
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429
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430 #endregion
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431
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432 #region GetNullable
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433
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434 public override bool GetNullable(MappingSchema mappingSchema, TypeExtension typeExtension, MemberAccessor member, out bool isSet)
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435 {
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436 // Check member [Nullable(true | false)]
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437 //
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438 var attr1 = member.GetAttribute<NullableAttribute>();
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439
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440 if (attr1 != null)
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441 {
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442 isSet = true;
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443 return attr1.IsNullable;
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444 }
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445
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446 // Check member [NullValue(0)]
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447 //
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448 var attr2 = member.GetAttribute<NullValueAttribute>();
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449
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450 if (attr2 != null)
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451 return isSet = true;
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452
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453 // Check type [Nullable(true || false)]
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454 //
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455 attr1 = (NullableAttribute)TypeHelper.GetFirstAttribute(
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456 member.MemberInfo.DeclaringType, typeof(NullableAttribute));
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457
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458 if (attr1 != null)
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459 {
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460 isSet = true;
|
|
|
461 return attr1.IsNullable;
|
|
|
462 }
|
|
|
463
|
|
|
464 // Check type [NullValues(typeof(int), 0)]
|
|
|
465 //
|
|
|
466 var attrs = member.GetTypeAttributes(typeof(NullValueAttribute));
|
|
|
467
|
|
|
468 foreach (NullValueAttribute a in attrs)
|
|
|
469 if (a.Type == null && a.Value != null && a.Value.GetType() == member.Type ||
|
|
|
470 a.Type != null && a.Type == member.Type)
|
|
|
471 return isSet = true;
|
|
|
472
|
|
|
473 if (member.Type.IsEnum)
|
|
|
474 return isSet = mappingSchema.GetNullValue(member.Type) != null;
|
|
|
475
|
|
|
476 if (member.Type.IsClass)
|
|
|
477 {
|
|
|
478 var pk = member.GetAttribute<PrimaryKeyAttribute>();
|
|
|
479
|
|
|
480 if (pk != null)
|
|
|
481 {
|
|
|
482 isSet = false;
|
|
|
483 return false;
|
|
|
484 }
|
|
|
485 }
|
|
|
486
|
|
|
487 return base.GetNullable(mappingSchema, typeExtension, member, out isSet);
|
|
|
488 }
|
|
|
489
|
|
|
490 #endregion
|
|
|
491
|
|
|
492 #region GetLazyInstance
|
|
|
493
|
|
|
494 public override bool GetLazyInstance(MappingSchema mappingSchema, TypeExtension typeExtension, MemberAccessor member, out bool isSet)
|
|
|
495 {
|
|
|
496 var attr1 = member.GetAttribute<LazyInstanceAttribute>();
|
|
|
497
|
|
|
498 if (attr1 != null)
|
|
|
499 {
|
|
|
500 isSet = true;
|
|
|
501 return attr1.IsLazy;
|
|
|
502 }
|
|
|
503
|
|
|
504 attr1 = (LazyInstanceAttribute)TypeHelper.GetFirstAttribute(member.MemberInfo.DeclaringType, typeof(LazyInstanceAttribute));
|
|
|
505
|
|
|
506 if (attr1 != null)
|
|
|
507 {
|
|
|
508 isSet = true;
|
|
|
509 return attr1.IsLazy;
|
|
|
510 }
|
|
|
511
|
|
|
512 return base.GetLazyInstance(mappingSchema, typeExtension, member, out isSet);
|
|
|
513 }
|
|
|
514
|
|
|
515 #endregion
|
|
|
516
|
|
|
517 #region GetNullValue
|
|
|
518
|
|
|
519 private static object CheckNullValue(object value, MemberAccessor member)
|
|
|
520 {
|
|
|
521 if (value is Type && (Type)value == typeof(DBNull))
|
|
|
522 {
|
|
|
523 value = DBNull.Value;
|
|
|
524
|
|
|
525 if (member.Type == typeof(string))
|
|
|
526 value = null;
|
|
|
527 }
|
|
|
528
|
|
|
529 return value;
|
|
|
530 }
|
|
|
531
|
|
|
532 public override object GetNullValue(MappingSchema mappingSchema, TypeExtension typeExtension, MemberAccessor member, out bool isSet)
|
|
|
533 {
|
|
|
534 // Check member [NullValue(0)]
|
|
|
535 //
|
|
|
536 var attr = member.GetAttribute<NullValueAttribute>();
|
|
|
537
|
|
|
538 if (attr != null)
|
|
|
539 {
|
|
|
540 isSet = true;
|
|
|
541 return CheckNullValue(attr.Value, member);
|
|
|
542 }
|
|
|
543
|
|
|
544 // Check type [NullValues(typeof(int), 0)]
|
|
|
545 //
|
|
|
546 var attrs = member.GetTypeAttributes(typeof(NullValueAttribute));
|
|
|
547
|
|
|
548 foreach (NullValueAttribute a in attrs)
|
|
|
549 {
|
|
|
550 if (a.Type == null && a.Value != null && a.Value.GetType() == member.Type ||
|
|
|
551 a.Type != null && a.Type == member.Type)
|
|
|
552 {
|
|
|
553 isSet = true;
|
|
|
554 return CheckNullValue(a.Value, member);
|
|
|
555 }
|
|
|
556 }
|
|
|
557
|
|
|
558 if (member.Type.IsEnum)
|
|
|
559 {
|
|
|
560 var value = CheckNullValue(mappingSchema.GetNullValue(member.Type), member);
|
|
|
561
|
|
|
562 if (value != null)
|
|
|
563 {
|
|
|
564 isSet = true;
|
|
|
565 return value;
|
|
|
566 }
|
|
|
567 }
|
|
|
568
|
|
|
569 isSet = false;
|
|
|
570 return null;
|
|
|
571 }
|
|
|
572
|
|
|
573 #endregion
|
|
|
574
|
|
|
575 #region GetDbName
|
|
|
576
|
|
|
577 public override string GetDatabaseName(Type type, ExtensionList extensions, out bool isSet)
|
|
|
578 {
|
|
|
579 var attrs = type.GetCustomAttributes(typeof(TableNameAttribute), true);
|
|
|
580
|
|
|
581 if (attrs.Length > 0)
|
|
|
582 {
|
|
|
583 var name = ((TableNameAttribute)attrs[0]).Database;
|
|
|
584 isSet = name != null;
|
|
|
585 return name;
|
|
|
586 }
|
|
|
587
|
|
|
588 return base.GetDatabaseName(type, extensions, out isSet);
|
|
|
589 }
|
|
|
590
|
|
|
591 #endregion
|
|
|
592
|
|
|
593 #region GetTableName
|
|
|
594
|
|
|
595 public override string GetOwnerName(Type type, ExtensionList extensions, out bool isSet)
|
|
|
596 {
|
|
|
597 var attrs = type.GetCustomAttributes(typeof(TableNameAttribute), true);
|
|
|
598
|
|
|
599 if (attrs.Length > 0)
|
|
|
600 {
|
|
|
601 var name = ((TableNameAttribute)attrs[0]).Owner;
|
|
|
602 isSet = name != null;
|
|
|
603 return name;
|
|
|
604 }
|
|
|
605
|
|
|
606 return base.GetOwnerName(type, extensions, out isSet);
|
|
|
607 }
|
|
|
608
|
|
|
609 #endregion
|
|
|
610
|
|
|
611 #region GetTableName
|
|
|
612
|
|
|
613 public override string GetTableName(Type type, ExtensionList extensions, out bool isSet)
|
|
|
614 {
|
|
|
615 var attrs = type.GetCustomAttributes(typeof(TableNameAttribute), true);
|
|
|
616
|
|
|
617 if (attrs.Length > 0)
|
|
|
618 {
|
|
|
619 var name = ((TableNameAttribute)attrs[0]).Name;
|
|
|
620 isSet = name != null;
|
|
|
621 return name;
|
|
|
622 }
|
|
|
623
|
|
|
624 return base.GetTableName(type, extensions, out isSet);
|
|
|
625 }
|
|
|
626
|
|
|
627 #endregion
|
|
|
628
|
|
|
629 #region GetPrimaryKeyOrder
|
|
|
630
|
|
|
631 public override int GetPrimaryKeyOrder(Type type, TypeExtension typeExt, MemberAccessor member, out bool isSet)
|
|
|
632 {
|
|
|
633 var attr = member.GetAttribute<PrimaryKeyAttribute>();
|
|
|
634
|
|
|
635 if (attr != null)
|
|
|
636 {
|
|
|
637 isSet = true;
|
|
|
638 return attr.Order;
|
|
|
639 }
|
|
|
640
|
|
|
641 return base.GetPrimaryKeyOrder(type, typeExt, member, out isSet);
|
|
|
642 }
|
|
|
643
|
|
|
644 #endregion
|
|
|
645
|
|
|
646 public override string GetSequenceName(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
|
|
|
647 {
|
|
|
648 var attr = member.GetAttribute<SequenceNameAttribute>();
|
|
|
649
|
|
|
650 if (attr != null)
|
|
|
651 {
|
|
|
652 isSet = true;
|
|
|
653 return attr.SequenceName;
|
|
|
654 }
|
|
|
655
|
|
|
656 return base.GetSequenceName(typeExtension, member, out isSet);
|
|
|
657 }
|
|
|
658
|
|
|
659 #region GetNonUpdatableFlag
|
|
|
660
|
|
|
661 public override NonUpdatableAttribute GetNonUpdatableAttribute(Type type, TypeExtension typeExt, MemberAccessor member, out bool isSet)
|
|
|
662 {
|
|
|
663 var attr = member.GetAttribute<NonUpdatableAttribute>();
|
|
|
664
|
|
|
665 if (attr != null)
|
|
|
666 {
|
|
|
667 isSet = true;
|
|
|
668 return attr;
|
|
|
669 }
|
|
|
670
|
|
|
671 foreach (NonUpdatableAttribute a in GetNonUpdatableAttributes(member.TypeAccessor))
|
|
|
672 {
|
|
|
673 if (string.Equals(a.FieldName, member.Name, StringComparison.InvariantCultureIgnoreCase))
|
|
|
674 {
|
|
|
675 isSet = true;
|
|
|
676 return a;
|
|
|
677 }
|
|
|
678 }
|
|
|
679
|
|
|
680 return base.GetNonUpdatableAttribute(type, typeExt, member, out isSet);
|
|
|
681 }
|
|
|
682
|
|
|
683 #endregion
|
|
|
684
|
|
|
685 #region GetSqlIgnore
|
|
|
686
|
|
|
687 public override bool GetSqlIgnore(TypeExtension typeExtension, MemberAccessor member, out bool isSet)
|
|
|
688 {
|
|
|
689 var attr = member.GetAttribute<SqlIgnoreAttribute>();
|
|
|
690
|
|
|
691 if (attr == null)
|
|
|
692 attr = (SqlIgnoreAttribute)TypeHelper.GetFirstAttribute(member.Type, typeof(SqlIgnoreAttribute));
|
|
|
693
|
|
|
694 if (attr != null)
|
|
|
695 {
|
|
|
696 isSet = true;
|
|
|
697 return attr.Ignore;
|
|
|
698 }
|
|
|
699
|
|
|
700 return base.GetSqlIgnore(typeExtension, member, out isSet);
|
|
|
701 }
|
|
|
702
|
|
|
703 #endregion
|
|
|
704
|
|
|
705 #region GetRelations
|
|
|
706
|
|
|
707 public override List<MapRelationBase> GetRelations(MappingSchema schema, ExtensionList typeExt, Type master, Type slave, out bool isSet)
|
|
|
708 {
|
|
|
709 var masterAccessor = TypeAccessor.GetAccessor(master);
|
|
|
710 var slaveAccessor = slave != null ? TypeAccessor.GetAccessor(slave) : null;
|
|
|
711 var relations = new List<MapRelationBase>();
|
|
|
712
|
|
|
713 foreach (MemberAccessor ma in masterAccessor)
|
|
|
714 {
|
|
|
715 var attr = ma.GetAttribute<RelationAttribute>();
|
|
|
716
|
|
|
717 if (attr == null || (slave != null && attr.Destination != slave && ma.Type != slave))
|
|
|
718 continue;
|
|
|
719
|
|
|
720 if (slave == null)
|
|
|
721 slaveAccessor = TypeAccessor.GetAccessor(attr.Destination ?? ma.Type);
|
|
|
722
|
|
|
723
|
|
|
724 var toMany = TypeHelper.IsSameOrParent(typeof(IEnumerable), ma.Type);
|
|
|
725
|
|
|
726 if (toMany && attr.Destination == null)
|
|
|
727 throw new InvalidOperationException("Destination type should be set for enumerable relations: " + ma.Type.FullName + "." + ma.Name);
|
|
|
728
|
|
|
729 var masterIndex = attr.MasterIndex;
|
|
|
730 var slaveIndex = attr.SlaveIndex;
|
|
|
731
|
|
|
732 if (slaveIndex == null)
|
|
|
733 {
|
|
|
734 var accessor = toMany ? masterAccessor : slaveAccessor;
|
|
|
735 var tex = TypeExtension.GetTypeExtension(accessor.Type, typeExt);
|
|
|
736 var keys = GetPrimaryKeyFields(schema, accessor, tex);
|
|
|
737
|
|
|
738 if (keys.Count > 0)
|
|
|
739 slaveIndex = new MapIndex(keys.ToArray());
|
|
|
740 }
|
|
|
741
|
|
|
742 if (slaveIndex == null)
|
|
|
743 throw new InvalidOperationException("Slave index is not set for relation: " + ma.Type.FullName + "." + ma.Name);
|
|
|
744
|
|
|
745 if (masterIndex == null)
|
|
|
746 masterIndex = slaveIndex;
|
|
|
747
|
|
|
748 var relation = new MapRelationBase(attr.Destination ?? ma.Type, slaveIndex, masterIndex, ma.Name);
|
|
|
749
|
|
|
750 relations.Add(relation);
|
|
|
751 }
|
|
|
752
|
|
|
753 isSet = true;
|
|
|
754 return relations;
|
|
|
755 }
|
|
|
756
|
|
|
757 #endregion
|
|
|
758
|
|
|
759 #region GetAssociation
|
|
|
760
|
|
|
761 public override Association GetAssociation(TypeExtension typeExtension, MemberAccessor member)
|
|
|
762 {
|
|
|
763 var aa = member.GetAttribute<AssociationAttribute>();
|
|
|
764
|
|
|
765 if (aa == null)
|
|
|
766 return base.GetAssociation(typeExtension, member);
|
|
|
767
|
|
|
768 return new Association(
|
|
|
769 member,
|
|
|
770 aa.GetThisKeys(),
|
|
|
771 aa.GetOtherKeys(),
|
|
|
772 aa.Storage,
|
|
|
773 aa.CanBeNull);
|
|
|
774 }
|
|
|
775
|
|
|
776 #endregion
|
|
|
777
|
|
|
778 #region GetInheritanceMapping
|
|
|
779
|
|
|
780 public override InheritanceMappingAttribute[] GetInheritanceMapping(Type type, TypeExtension typeExtension)
|
|
|
781 {
|
|
|
782 var attrs = type.GetCustomAttributes(typeof(InheritanceMappingAttribute), true);
|
|
|
783
|
|
|
784 if (attrs.Length > 0)
|
|
|
785 {
|
|
|
786 var maps = new InheritanceMappingAttribute[attrs.Length];
|
|
|
787
|
|
|
788 for (var i = 0; i < attrs.Length; i++)
|
|
|
789 maps[i] = (InheritanceMappingAttribute)attrs[i];
|
|
|
790
|
|
|
791 return maps;
|
|
|
792 }
|
|
|
793
|
|
|
794 return base.GetInheritanceMapping(type, typeExtension);
|
|
|
795 }
|
|
|
796
|
|
|
797 #endregion
|
|
|
798 }
|
|
|
799 }
|
