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1 using System;
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2 using System.Data;
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3
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4 using BLToolkit.Common;
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5 using System.Data.SqlTypes;
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6
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7 namespace BLToolkit.Mapping
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8 {
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9 public class ScalarDataReaderMapper : DataReaderMapper
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10 {
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11 public ScalarDataReaderMapper(
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12 MappingSchema mappingSchema,
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13 IDataReader dataReader,
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14 NameOrIndexParameter nameOrIndex)
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15 : base(mappingSchema, dataReader)
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16 {
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17 _index = nameOrIndex.ByName? dataReader.GetOrdinal(nameOrIndex.Name): nameOrIndex.Index;
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18 }
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19
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20 private readonly int _index;
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21 public int Index
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22 {
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23 get { return _index; }
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24 }
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25
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26 #region IMapDataSource Members
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27
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28 public override int Count
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29 {
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30 get { return 1; }
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31 }
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32
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33 public override Type GetFieldType(int index)
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34 {
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35 return DataReader.GetFieldType(_index);
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36 }
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37
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38 public override string GetName(int index)
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39 {
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40 return DataReader.GetName(_index);
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41 }
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42
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43 public override object GetValue(object o, int index)
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44 {
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45 return base.GetValue(o, _index);
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46 }
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47
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48 public override object GetValue(object o, string name)
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49 {
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50 return base.GetValue(o, _index);
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51 }
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52
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53 public override bool IsNull (object o, int index) { return DataReader.IsDBNull(_index); }
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54
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55 // Simple type getters.
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56 //
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57 [CLSCompliant(false)]
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58 public override SByte GetSByte (object o, int index) { return base.GetSByte(o, _index); }
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59 public override Int16 GetInt16 (object o, int index) { return DataReader.GetInt16 (_index); }
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60 public override Int32 GetInt32 (object o, int index) { return DataReader.GetInt32 (_index); }
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61 public override Int64 GetInt64 (object o, int index) { return DataReader.GetInt64 (_index); }
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62
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63 public override Byte GetByte (object o, int index) { return DataReader.GetByte (_index); }
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64 [CLSCompliant(false)]
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65 public override UInt16 GetUInt16 (object o, int index) { return base.GetUInt16(o, _index); }
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66 [CLSCompliant(false)]
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67 public override UInt32 GetUInt32 (object o, int index) { return base.GetUInt32(o, _index); }
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68 [CLSCompliant(false)]
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69 public override UInt64 GetUInt64 (object o, int index) { return base.GetUInt64(o, _index); }
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70
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71 public override Boolean GetBoolean (object o, int index) { return DataReader.GetBoolean (_index); }
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72 public override Char GetChar (object o, int index) { return DataReader.GetChar (_index); }
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73 public override Single GetSingle (object o, int index) { return DataReader.GetFloat (_index); }
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74 public override Double GetDouble (object o, int index) { return DataReader.GetDouble (_index); }
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75 public override Decimal GetDecimal (object o, int index) { return DataReader.GetDecimal (_index); }
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76 public override Guid GetGuid (object o, int index) { return DataReader.GetGuid (_index); }
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77 public override DateTime GetDateTime(object o, int index) { return DataReader.GetDateTime(_index); }
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78 public override DateTimeOffset GetDateTimeOffset(object o, int index) { return (DateTimeOffset)DataReader.GetValue(_index); }
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79
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80 // Nullable type getters.
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81 //
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82 [CLSCompliant(false)]
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83 public override SByte? GetNullableSByte (object o, int index) { return base.GetNullableSByte(o, _index); }
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84 public override Int16? GetNullableInt16 (object o, int index) { return DataReader.IsDBNull(_index)? null: (Int16?)DataReader.GetInt16 (_index); }
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85 public override Int32? GetNullableInt32 (object o, int index) { return DataReader.IsDBNull(_index)? null: (Int32?)DataReader.GetInt32 (_index); }
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86 public override Int64? GetNullableInt64 (object o, int index) { return DataReader.IsDBNull(_index)? null: (Int64?)DataReader.GetInt64 (_index); }
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87
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88 public override Byte? GetNullableByte (object o, int index) { return DataReader.IsDBNull(_index)? null: (Byte?) DataReader.GetByte (_index); }
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89 [CLSCompliant(false)]
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90 public override UInt16? GetNullableUInt16 (object o, int index) { return base.GetNullableUInt16(o, _index); }
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91 [CLSCompliant(false)]
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92 public override UInt32? GetNullableUInt32 (object o, int index) { return base.GetNullableUInt32(o, _index); }
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93 [CLSCompliant(false)]
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94 public override UInt64? GetNullableUInt64 (object o, int index) { return base.GetNullableUInt64(o, _index); }
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95
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96 public override Boolean? GetNullableBoolean (object o, int index) { return DataReader.IsDBNull(_index)? null: (Boolean?) DataReader.GetBoolean (_index); }
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97 public override Char? GetNullableChar (object o, int index) { return DataReader.IsDBNull(_index)? null: (Char?) DataReader.GetChar (_index); }
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98 public override Single? GetNullableSingle (object o, int index) { return DataReader.IsDBNull(_index)? null: (Single?) DataReader.GetFloat (_index); }
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99 public override Double? GetNullableDouble (object o, int index) { return DataReader.IsDBNull(_index)? null: (Double?) DataReader.GetDouble (_index); }
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100 public override Decimal? GetNullableDecimal (object o, int index) { return DataReader.IsDBNull(_index)? null: (Decimal?) DataReader.GetDecimal (_index); }
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101 public override Guid? GetNullableGuid (object o, int index) { return DataReader.IsDBNull(_index)? null: (Guid?) DataReader.GetGuid (_index); }
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102 public override DateTime? GetNullableDateTime(object o, int index) { return DataReader.IsDBNull(_index)? null: (DateTime?)DataReader.GetDateTime(_index); }
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103 public override DateTimeOffset? GetNullableDateTimeOffset(object o, int index) { return DataReader.IsDBNull(_index)? null: (DateTimeOffset?)DataReader.GetValue(_index); }
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104
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105 #if !SILVERLIGHT
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106
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107 // SQL type getters.
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108 //
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109 public override SqlByte GetSqlByte (object o, int index) { return DataReader.IsDBNull(_index)? SqlByte. Null: DataReader.GetByte (_index); }
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110 public override SqlInt16 GetSqlInt16 (object o, int index) { return DataReader.IsDBNull(_index)? SqlInt16. Null: DataReader.GetInt16 (_index); }
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111 public override SqlInt32 GetSqlInt32 (object o, int index) { return DataReader.IsDBNull(_index)? SqlInt32. Null: DataReader.GetInt32 (_index); }
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112 public override SqlInt64 GetSqlInt64 (object o, int index) { return DataReader.IsDBNull(_index)? SqlInt64. Null: DataReader.GetInt64 (_index); }
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113 public override SqlSingle GetSqlSingle (object o, int index) { return DataReader.IsDBNull(_index)? SqlSingle. Null: DataReader.GetFloat (_index); }
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114 public override SqlBoolean GetSqlBoolean (object o, int index) { return DataReader.IsDBNull(_index)? SqlBoolean. Null: DataReader.GetBoolean (_index); }
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115 public override SqlDouble GetSqlDouble (object o, int index) { return DataReader.IsDBNull(_index)? SqlDouble. Null: DataReader.GetDouble (_index); }
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116 public override SqlDateTime GetSqlDateTime(object o, int index) { return DataReader.IsDBNull(_index)? SqlDateTime.Null: DataReader.GetDateTime(_index); }
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117 public override SqlDecimal GetSqlDecimal (object o, int index) { return DataReader.IsDBNull(_index)? SqlDecimal. Null: DataReader.GetDecimal (_index); }
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118 public override SqlMoney GetSqlMoney (object o, int index) { return DataReader.IsDBNull(_index)? SqlMoney. Null: DataReader.GetDecimal (_index); }
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119 public override SqlGuid GetSqlGuid (object o, int index) { return DataReader.IsDBNull(_index)? SqlGuid. Null: DataReader.GetGuid (_index); }
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120 public override SqlString GetSqlString (object o, int index) { return DataReader.IsDBNull(_index)? SqlString. Null: DataReader.GetString (_index); }
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121
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122 #endif
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123
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124 #endregion
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125 }
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126 }
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