mcs/class/ByteFX.Data/Common/Connection.cs

   1 // ByteFX.Data data access components for .Net\r
   2 // Copyright (C) 2002-2003  ByteFX, Inc.\r
   3 //\r
   4 // This library is free software; you can redistribute it and/or\r
   5 // modify it under the terms of the GNU Lesser General Public\r
   6 // License as published by the Free Software Foundation; either\r
   7 // version 2.1 of the License, or (at your option) any later version.\r
   8 // \r
   9 // This library is distributed in the hope that it will be useful,\r
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\r
  12 // Lesser General Public License for more details.\r
  13 // \r
  14 // You should have received a copy of the GNU Lesser General Public\r
  15 // License along with this library; if not, write to the Free Software\r
  16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
  17 \r
  18 using System;\r
  19 using System.ComponentModel;\r
  20 using System.Collections.Specialized;\r
  21 using System.Data;\r
  22 \r
  23 namespace ByteFX.Data.Common\r
  24 {\r
  25         /// <summary>\r
  26         /// Summary description for Connection.\r
  27         /// </summary>\r
  28         [ToolboxItem(false)]\r
  29         [System.ComponentModel.DesignerCategory("Code")]\r
  30         public class Connection : Component\r
  31         {\r
  32                 internal ConnectionString       connString;\r
  33                 internal ConnectionState        state;\r
  34                 internal IDataReader            reader = null;\r
  35 \r
  36 \r
  37                 public Connection(System.ComponentModel.IContainer container)\r
  38                 {\r
  39                         /// <summary>\r
  40                         /// Required for Windows.Forms Class Composition Designer support\r
  41                         /// </summary>\r
  42                         container.Add(this);\r
  43                         Init();\r
  44                 }\r
  45 \r
  46                 public Connection()\r
  47                 {\r
  48                         Init();\r
  49                 }\r
  50 \r
  51                 protected void Init() \r
  52                 {\r
  53                         state = ConnectionState.Closed;\r
  54                 }\r
  55 \r
  56 \r
  57                 [Browsable(true)]\r
  58                 public string DataSource\r
  59                 {\r
  60                         get\r
  61                         {\r
  62                                 String s = connString["data source"];\r
  63                                 if (s == null || s.Length == 0)\r
  64                                         return "localhost";\r
  65                                 return s;\r
  66                         }\r
  67                 }\r
  68 \r
  69                 [Browsable(false)]\r
  70                 public string User\r
  71                 {\r
  72                         get\r
  73                         {\r
  74                                 string s = connString["user id"];\r
  75                                 if (s == null)\r
  76                                         s = "";\r
  77                                 return s;\r
  78                         }\r
  79                 }\r
  80 \r
  81                 [Browsable(false)]\r
  82                 public string Password\r
  83                 {\r
  84                         get\r
  85                         {\r
  86                                 string pwd = connString["password"];\r
  87                                 if (pwd == null)\r
  88                                         pwd = "";\r
  89                                 return pwd;\r
  90                         }\r
  91                 }\r
  92 \r
  93                 [Browsable(true)]\r
  94                 public int ConnectionTimeout\r
  95                 {\r
  96                         get\r
  97                         {\r
  98                                 // Returns the connection time-out value set in the connection\r
  99                                 // string. Zero indicates an indefinite time-out period.\r
 100                                 if (connString == null)\r
 101                                         return 30;\r
 102                                 return connString.GetIntOption("connection timeout", 30);\r
 103                         }\r
 104                 }\r
 105                 \r
 106                 [Browsable(true)]\r
 107                 public string Database\r
 108                 {\r
 109                         get     \r
 110                         {       \r
 111                                 // Returns an initial database as set in the connection string.\r
 112                                 // An empty string indicates not set - do not return a null reference.\r
 113                                 return connString["database"];\r
 114                         }\r
 115                 }\r
 116 \r
 117                 [Browsable(false)]\r
 118                 public ConnectionState State\r
 119                 {\r
 120                         get { return state; }\r
 121                 }\r
 122 \r
 123                 internal IDataReader Reader\r
 124                 {\r
 125                         get { return reader; }\r
 126                         set { reader = value; }\r
 127                 }\r
 128         }\r
 129 }\r