OleDbDataReader.cs 2.4 KB

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  1. //
  2. // System.Data.OleDb.OleDbDataReader
  3. //
  4. // Authors:
  5. // Konstantin Triger <[email protected]>
  6. // Boris Kirzner <[email protected]>
  7. //
  8. // (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
  9. //
  10. //
  11. // Permission is hereby granted, free of charge, to any person obtaining
  12. // a copy of this software and associated documentation files (the
  13. // "Software"), to deal in the Software without restriction, including
  14. // without limitation the rights to use, copy, modify, merge, publish,
  15. // distribute, sublicense, and/or sell copies of the Software, and to
  16. // permit persons to whom the Software is furnished to do so, subject to
  17. // the following conditions:
  18. //
  19. // The above copyright notice and this permission notice shall be
  20. // included in all copies or substantial portions of the Software.
  21. //
  22. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23. // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24. // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25. // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26. // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27. // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28. // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29. //
  30. using System.Data.Common;
  31. using System.Data.ProviderBase;
  32. using java.sql;
  33. namespace System.Data.OleDb
  34. {
  35. public sealed class OleDbDataReader : AbstractDataReader
  36. {
  37. #region Fields
  38. #endregion // Fields
  39. #region Constructors
  40. internal OleDbDataReader(OleDbCommand command) : base(command)
  41. {
  42. }
  43. #endregion // Constructors
  44. #region Methods
  45. protected sealed override SystemException CreateException(string message, SQLException e)
  46. {
  47. return new OleDbException(message,e, (OleDbConnection)_command.Connection);
  48. }
  49. protected sealed override SystemException CreateException(java.io.IOException e)
  50. {
  51. return new OleDbException(e, (OleDbConnection)_command.Connection);
  52. }
  53. public override String GetDataTypeName(int columnIndex)
  54. {
  55. try {
  56. string jdbcTypeName = Results.getMetaData().getColumnTypeName(columnIndex + 1);
  57. return OleDbConvert.JdbcTypeNameToDbTypeName(jdbcTypeName);
  58. }
  59. catch (SQLException e) {
  60. throw CreateException(e);
  61. }
  62. }
  63. protected override int GetProviderType(int jdbcType)
  64. {
  65. return (int)OleDbConvert.JdbcTypeToOleDbType(jdbcType);
  66. }
  67. #endregion // Methods
  68. }
  69. }