[runtime] Overwrite stacktrace for exception on re-throw. Fixes #1856.
[mono.git] / mcs / class / System.Data / System.Data.Odbc / OdbcFactory.cs
1 //
2 // System.Data.Odbc.OdbcFactory
3 //
4 // Author:
5 //   Sureshkumar T <tsureshkumar@novell.com>
6 //
7 //
8 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
9 //
10 // Permission is hereby granted, free of charge, to any person obtaining
11 // a copy of this software and associated documentation files (the
12 // "Software"), to deal in the Software without restriction, including
13 // without limitation the rights to use, copy, modify, merge, publish,
14 // distribute, sublicense, and/or sell copies of the Software, and to
15 // permit persons to whom the Software is furnished to do so, subject to
16 // the following conditions:
17 // 
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
20 // 
21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 //
29
30
31 #region Using Directives
32 using System;
33 using System.Data;
34 using System.Data.Common;
35 using System.Security;
36 using System.Security.Permissions;
37 #endregion // Using Directives
38
39 namespace System.Data.Odbc 
40 {
41         
42         public sealed class OdbcFactory : DbProviderFactory
43         {
44                 #region Fields
45                 public static readonly OdbcFactory Instance;
46                 static readonly object lockStatic = new object ();
47                 #endregion //Fields
48
49                 #region Constructors
50                 /// <remarks>
51                 /// public static variable Instance should hold the the singleton instance 
52                 /// based on the knowledge that custom factories without this instance variable
53                 /// ms.net  throws exception 
54                 /// <pre>
55                 /// System.InvalidOperationException: The requested .Net Framework Data 
56                 ///             Provider's implementation does not have an Instance field 
57                 ///             of a System.Data.Common.DbProviderFactory derived type.
58                 ///     at System.Data.Common.DbProviderFactories.GetFactory(DataRow providerRow)
59                 ///     at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName)
60                 /// </pre>
61                 /// </remarks>
62                 static OdbcFactory() 
63                 {
64                         lock (lockStatic) 
65                         {
66                                 if (Instance == null)
67                                         Instance = new OdbcFactory ();
68                         }
69                 }
70                 
71                 private OdbcFactory()
72                 {
73                         
74                 }
75                 
76                 #endregion //Constructors
77
78                 #region Methods
79                 public override DbConnection CreateConnection()
80                 {
81                         return  new OdbcConnection () as DbConnection;
82                 }
83                 
84                 public override DbCommand CreateCommand()
85                 {
86                         return new OdbcCommand () as DbCommand;
87                 }
88                 
89                 public override DbCommandBuilder CreateCommandBuilder()
90                 {
91                         return new OdbcCommandBuilder () as DbCommandBuilder;
92                 }
93                 
94                 
95                 public override DbConnectionStringBuilder CreateConnectionStringBuilder ()
96                 {
97                         return new OdbcConnectionStringBuilder () as DbConnectionStringBuilder;
98                 }
99                 
100                 public override DbDataAdapter CreateDataAdapter()
101                 {
102                         return new OdbcDataAdapter () as DbDataAdapter;
103                 }
104                 
105                 public override DbParameter CreateParameter()
106                 {
107                         return new OdbcParameter () as DbParameter;
108                 }
109
110                 public override CodeAccessPermission CreatePermission (PermissionState state)
111                 {
112                         return new OdbcPermission (state);
113                 }
114
115                 #endregion //Methods
116         }
117 }