source: trunk/src/sql/kernel/qsqldriverplugin.cpp@ 890

Last change on this file since 890 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

File size: 3.6 KB
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1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtSql module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "qsqldriverplugin.h"
43
44QT_BEGIN_NAMESPACE
45
46/*!
47 \class QSqlDriverPlugin
48 \brief The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.
49
50 \ingroup plugins
51 \inmodule QtSql
52
53 The SQL driver plugin is a simple plugin interface that makes it
54 easy to create your own SQL driver plugins that can be loaded
55 dynamically by Qt.
56
57 Writing a SQL plugin is achieved by subclassing this base class,
58 reimplementing the pure virtual functions keys() and create(), and
59 exporting the class with the Q_EXPORT_PLUGIN2() macro. See the SQL
60 plugins that come with Qt for example implementations (in the
61 \c{plugins/src/sqldrivers} subdirectory of the source
62 distribution).
63
64 \sa {How to Create Qt Plugins}
65*/
66
67/*!
68 \fn QStringList QSqlDriverPlugin::keys() const
69
70 Returns the list of drivers (keys) this plugin supports.
71
72 These keys are usually the class names of the custom drivers that
73 are implemented in the plugin.
74
75 \sa create()
76*/
77
78/*!
79 \fn QSqlDriver *QSqlDriverPlugin::create(const QString& key)
80
81 Creates and returns a QSqlDriver object for the driver called \a
82 key. The driver key is usually the class name of the required
83 driver. Keys are case sensitive.
84
85 \sa keys()
86*/
87
88/*!
89 Constructs a SQL driver plugin and sets the parent to \a parent.
90 This is invoked automatically by the Q_EXPORT_PLUGIN2() macro.
91*/
92
93QSqlDriverPlugin::QSqlDriverPlugin(QObject *parent)
94 : QObject(parent)
95{
96}
97
98/*!
99 Destroys the SQL driver plugin.
100
101 You never have to call this explicitly. Qt destroys a plugin
102 automatically when it is no longer used.
103*/
104QSqlDriverPlugin::~QSqlDriverPlugin()
105{
106}
107
108QT_END_NAMESPACE
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