1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
// Copyright (c) 2004-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
// MySQL Connectors. There are special exceptions to the terms and
// conditions of the GPLv2 as it is applied to this software, see the
// FLOSS License Exception
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#if !PocketPC
using System.Data.Common;
using System;
using System.Reflection;
namespace MySql.Data.MySqlClient
{
/// <summary>
/// DBProviderFactory implementation for MysqlClient.
/// </summary>
public sealed class MySqlClientFactory : DbProviderFactory, IServiceProvider
{
/// <summary>
/// Gets an instance of the <see cref="MySqlClientFactory"/>.
/// This can be used to retrieve strongly typed data objects.
/// </summary>
public static MySqlClientFactory Instance = new MySqlClientFactory();
private Type dbServicesType;
private FieldInfo mySqlDbProviderServicesInstance;
/// <summary>
/// Returns a strongly typed <see cref="DbCommandBuilder"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbCommandBuilder</b>.</returns>
public override DbCommandBuilder CreateCommandBuilder()
{
return new MySqlCommandBuilder();
}
/// <summary>
/// Returns a strongly typed <see cref="DbCommand"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbCommand</b>.</returns>
public override DbCommand CreateCommand()
{
return new MySqlCommand();
}
/// <summary>
/// Returns a strongly typed <see cref="DbConnection"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbConnection</b>.</returns>
public override DbConnection CreateConnection()
{
return new MySqlConnection();
}
/// <summary>
/// Returns a strongly typed <see cref="DbDataAdapter"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbDataAdapter</b>. </returns>
public override DbDataAdapter CreateDataAdapter()
{
return new MySqlDataAdapter();
}
/// <summary>
/// Returns a strongly typed <see cref="DbParameter"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbParameter</b>.</returns>
public override DbParameter CreateParameter()
{
return new MySqlParameter();
}
/// <summary>
/// Returns a strongly typed <see cref="DbConnectionStringBuilder"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbConnectionStringBuilder</b>.</returns>
public override DbConnectionStringBuilder CreateConnectionStringBuilder()
{
return new MySqlConnectionStringBuilder();
}
/// <summary>
/// Returns true if a <b>MySqlDataSourceEnumerator</b> can be created;
/// otherwise false.
/// </summary>
public override bool CanCreateDataSourceEnumerator
{
get { return false; }
}
#region IServiceProvider Members
/// <summary>
/// Provide a simple caching layer
/// </summary>
private Type DbServicesType
{
get
{
if (dbServicesType == null)
{
// Get the type this way so we don't have to reference System.Data.Entity
// from our core provider
dbServicesType = Type.GetType(
@"System.Data.Common.DbProviderServices, System.Data.Entity,
Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
false);
}
return dbServicesType;
}
}
private FieldInfo MySqlDbProviderServicesInstance
{
get
{
if (mySqlDbProviderServicesInstance == null)
{
string fullName = Assembly.GetExecutingAssembly().FullName;
fullName = fullName.Replace("MySql.Data", "MySql.Data.Entity");
fullName = String.Format("MySql.Data.MySqlClient.MySqlProviderServices, {0}", fullName);
Type providerServicesType = Type.GetType(fullName, false);
mySqlDbProviderServicesInstance = providerServicesType.GetField("Instance",
BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance);
}
return mySqlDbProviderServicesInstance;
}
}
object IServiceProvider.GetService(Type serviceType)
{
// DbProviderServices is the only service we offer up right now
if (serviceType != DbServicesType) return null;
if (MySqlDbProviderServicesInstance == null) return null;
return MySqlDbProviderServicesInstance.GetValue(null);
}
#endregion
}
}
#endif
|
