mcs/class/Mono.Data/Provider.cs

   1 //\r
   2 // Mono.Data.Provider\r
   3 //\r
   4 // Authors:\r
   5 //   Brian Ritchie (brianlritchie@hotmail.com) \r
   6 //  \r
   7 //\r
   8 // Copyright (C) Brian Ritchie, 2002\r
   9 // \r
  10 //\r
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32 using System;\r
  33 using System.Data;\r
  34 using System.Reflection;\r
  35 \r
  36 namespace Mono.Data\r
  37 {\r
  38         public class Provider\r
  39         {\r
  40                 private string name = null;\r
  41                 private string connectionTypeName;\r
  42                 private string adapterTypeName;\r
  43                 private string commandTypeName;\r
  44                 private Type connectionType;\r
  45                 private Type adapterType;\r
  46                 private Type commandType;\r
  47                 private string assemblyName;\r
  48                 private string description;\r
  49       \r
  50                 public Provider(string _name, string _connection, \r
  51                         string _dataadapter, string _command, string _assembly,\r
  52                         string _description)\r
  53                 {\r
  54                         name = _name;\r
  55                         connectionTypeName = _connection;\r
  56                         adapterTypeName = _dataadapter;\r
  57                         assemblyName = _assembly;\r
  58                         commandTypeName = _command;\r
  59                         description = _description;\r
  60                 }\r
  61 \r
  62                 public Provider(string _name, Type _connection, Type _dataadapter, Type _command,\r
  63                         string _description)\r
  64                 {\r
  65                         name = _name;\r
  66                         connectionTypeName = _connection.FullName;\r
  67                         adapterTypeName = _dataadapter.FullName;\r
  68                         commandTypeName = _command.FullName;\r
  69                         connectionType = _connection;\r
  70                         adapterType = _dataadapter;\r
  71                         commandType = _command;\r
  72                         description = _description;\r
  73                 }\r
  74 \r
  75                 public string Name\r
  76                 {\r
  77                         get {return name;}\r
  78                 }\r
  79 \r
  80                 public string Description\r
  81                 {\r
  82                         get {return description;}\r
  83                 }\r
  84 \r
  85                 public Type ConnectionType\r
  86                 {\r
  87                         get \r
  88                         {\r
  89                                 if (connectionType==null)\r
  90                                 {\r
  91                                         connectionType=Type.GetType(connectionTypeName+","+assemblyName);\r
  92                                 }\r
  93                                 return connectionType;\r
  94                         }\r
  95                 }\r
  96 \r
  97                 public Type DataAdapterType\r
  98                 {\r
  99                         get \r
 100                         {\r
 101                                 if (adapterType==null)\r
 102                                 {\r
 103                                         adapterType=Type.GetType(adapterTypeName+","+assemblyName);\r
 104                                 }\r
 105                                 return adapterType;\r
 106                         }\r
 107                 }\r
 108 \r
 109                 public Type CommandType\r
 110                 {\r
 111                         get \r
 112                         {\r
 113                                 if (commandType==null)\r
 114                                 {\r
 115                                         commandType=Type.GetType(commandTypeName+","+assemblyName);\r
 116                                 }\r
 117                                 return commandType;\r
 118                         }\r
 119                 }\r
 120 \r
 121                 public IDbConnection CreateConnection()\r
 122                 {\r
 123                         return (IDbConnection) Activator.CreateInstance(ConnectionType);\r
 124                 }\r
 125 \r
 126                 public IDbDataAdapter CreateDataAdapter()\r
 127                 {\r
 128                         return (IDbDataAdapter) Activator.CreateInstance(DataAdapterType);\r
 129                 }\r
 130 \r
 131                 public IDbCommand CreateCommand()\r
 132                 {\r
 133                         return (IDbCommand) Activator.CreateInstance(CommandType);\r
 134                 }\r
 135         }\r
 136 }\r