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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
** This file is part of the QtSql module of the Qt Toolkit.
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#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

    \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.

00093 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.
00104 QSqlDriverPlugin::~QSqlDriverPlugin()

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