86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtSql module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef CLEMENTINECACHEDRESULT_P_H
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#define CLEMENTINECACHEDRESULT_P_H
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#include <QSqlResult>
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class QVariant;
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template <typename T> class QVector;
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class ClementineSqlCachedResultPrivate;
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class ClementineSqlCachedResult: public QSqlResult
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{
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public:
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virtual ~ClementineSqlCachedResult();
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typedef QVector<QVariant> ValueCache;
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protected:
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ClementineSqlCachedResult(const QSqlDriver * db);
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void init(int colCount);
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void cleanup();
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void clearValues();
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virtual bool gotoNext(ValueCache &values, int index) = 0;
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QVariant data(int i);
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bool isNull(int i);
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bool fetch(int i);
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bool fetchNext();
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bool fetchPrevious();
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bool fetchFirst();
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bool fetchLast();
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int colCount() const;
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ValueCache &cache();
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void virtual_hook(int id, void *data);
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private:
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bool cacheNext();
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ClementineSqlCachedResultPrivate *d;
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};
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#endif // CLEMENTINESQLCACHEDRESULT_P_H
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