/****************************************************************************
**
** Copyright (C) 1992-2004 Trolltech AS. All rights reserved.
**
** This file is part of the sql module of the Qt Toolkit.
**
** Licensees holding valid Qt Preview licenses may use this file in
** accordance with the Qt Preview License Agreement provided with the
** Software.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
** 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"

#ifndef QT_NO_SQL

/*!
    \class QSqlDriverPlugin qsqldriverplugin.h
    \brief The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.

    \ingroup plugins

    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 \c Q_EXPORT_PLUGIN macro. See the SQL
    plugins that come with Qt for example implementations (in the
    \c{plugins/src/sqldrivers} subdirectory of the source
    distribution). Read the \link plugins-howto.html plugins
    documentation\endlink for more information on 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.

    \sa keys()
*/

/*!
    Constructs a SQL driver plugin and sets the parent to \a parent.
    This is invoked automatically by the \c Q_EXPORT_PLUGIN 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()
{
}

#endif // QT_NO_SQL
