mcs/class/System.Data/System.Data.Common/DbConnection.cs

   1 //
   2 // System.Data.Common.DbConnection
   3 //
   4 // Author:
   5 //   Tim Coleman (tim@timcoleman.com)
   6 //
   7 // Copyright (C) Tim Coleman, 2003
   8 //
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  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
  33 #if NET_2_0 || TARGET_JVM
  34
  35 using System.ComponentModel;
  36 using System.Data;
  37 #if !TARGET_JVM
  38 using System.EnterpriseServices;
  39 #endif
  40
  41 namespace System.Data.Common {
  42         public abstract class DbConnection : Component, IDbConnection, IDisposable
  43         {
  44                 #region Constructors
  45
  46                 protected DbConnection ()
  47                 {
  48                 }
  49
  50                 #endregion // Constructors
  51
  52                 #region Properties
  53
  54                 public abstract string ConnectionString { get; set; }
  55                 public abstract int ConnectionTimeout { get; }
  56                 public abstract string Database { get; }
  57                 public abstract string DataSource { get; }
  58                 public abstract string ServerVersion { get; }
  59                 public abstract ConnectionState State { get; }
  60
  61                 #endregion // Properties
  62
  63                 #region Methods
  64
  65                 protected abstract DbTransaction BeginDbTransaction (IsolationLevel isolationLevel);
  66
  67                 public DbTransaction BeginTransaction ()
  68                 {
  69                         return BeginDbTransaction(IsolationLevel.ReadCommitted);
  70                 }
  71
  72                 public DbTransaction BeginTransaction (IsolationLevel isolationLevel)
  73                 {
  74                         return BeginDbTransaction(isolationLevel);
  75                 }
  76
  77                 public abstract void ChangeDatabase (string databaseName);
  78                 public abstract void Close ();
  79
  80                 public DbCommand CreateCommand ()
  81                 {
  82                         return CreateDbCommand ();
  83                 }
  84
  85                 protected abstract DbCommand CreateDbCommand ();
  86
  87 #if NET_2_0
  88         [MonoTODO]
  89         public virtual void EnlistTransaction (ITransaction transaction)
  90         {
  91                         throw new NotImplementedException ();
  92         }
  93
  94                 [MonoTODO]
  95                 public virtual void EnlistDistributedTransaction (ITransaction transaction)
  96                 {
  97                         throw new NotImplementedException ();
  98                 }
  99 #endif
 100
 101                 [MonoTODO]
 102                 public virtual DataTable GetSchema ()
 103                 {
 104                         throw new NotImplementedException ();
 105                 }
 106
 107                 [MonoTODO]
 108                 public virtual DataTable GetSchema (string collectionName)
 109                 {
 110                         throw new NotImplementedException ();
 111                 }
 112
 113                 [MonoTODO]
 114                 public virtual DataTable GetSchema (string collectionName, string[] restrictionValues)
 115                 {
 116                         throw new NotImplementedException ();
 117                 }
 118
 119                 IDbTransaction IDbConnection.BeginTransaction ()
 120                 {
 121                         return BeginTransaction ();
 122                 }
 123
 124                 IDbTransaction IDbConnection.BeginTransaction (IsolationLevel il)
 125                 {
 126                         return BeginTransaction (il);
 127                 }
 128
 129                 IDbCommand IDbConnection.CreateCommand ()
 130                 {
 131                         return CreateCommand ();
 132                 }
 133
 134                 public abstract void Open ();
 135
 136                 #endregion // Methods
 137
 138         }
 139 }
 140
 141 #endif