/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtSql module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 as published by the Free Software Foundation** and appearing in the file LICENSE.GPL included in the packaging of** this file.  Please review the following information to ensure GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#include "qsqldriverplugin.h"/*!    \class QSqlDriverPlugin    \brief The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.    \ingroup plugins    \module sql    The SQL driver plugin is a simple plugin interface that makes it    easy to create your own SQL driver plugins that can be loaded    dynamically by Qt.    Writing a SQL plugin is achieved by subclassing this base class,    reimplementing the pure virtual functions keys() and create(), and    exporting the class with the Q_EXPORT_PLUGIN2() macro. See the SQL    plugins that come with Qt for example implementations (in the    \c{plugins/src/sqldrivers} subdirectory of the source    distribution).    \sa {How to Create Qt Plugins}*//*!    \fn QStringList QSqlDriverPlugin::keys() const    Returns the list of drivers (keys) this plugin supports.    These keys are usually the class names of the custom drivers that    are implemented in the plugin.    \sa create()*//*!    \fn QSqlDriver *QSqlDriverPlugin::create(const QString& key)    Creates and returns a QSqlDriver object for the driver called \a    key. The driver key is usually the class name of the required    driver. Keys are case sensitive.    \sa keys()*//*!    Constructs a SQL driver plugin and sets the parent to \a parent.    This is invoked automatically by the Q_EXPORT_PLUGIN2() macro.*/QSqlDriverPlugin::QSqlDriverPlugin(QObject *parent)    : QObject(parent){}/*!    Destroys the SQL driver plugin.    You never have to call this explicitly. Qt destroys a plugin    automatically when it is no longer used.*/QSqlDriverPlugin::~QSqlDriverPlugin(){}