| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtSql module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL21$ |
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| ****************************************************************************/ |
| |
| #ifndef QSQLCACHEDRESULT_P_H |
| #define QSQLCACHEDRESULT_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "QtSql/qsqlresult.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QVariant; |
| template <typename T> class QVector; |
| |
| class QSqlCachedResultPrivate; |
| |
| class Q_SQL_EXPORT QSqlCachedResult: public QSqlResult |
| { |
| public: |
| virtual ~QSqlCachedResult(); |
| |
| typedef QVector<QVariant> ValueCache; |
| |
| protected: |
| QSqlCachedResult(const QSqlDriver * db); |
| |
| void init(int colCount); |
| void cleanup(); |
| void clearValues(); |
| |
| virtual bool gotoNext(ValueCache &values, int index) = 0; |
| |
| QVariant data(int i); |
| bool isNull(int i); |
| bool fetch(int i); |
| bool fetchNext(); |
| bool fetchPrevious(); |
| bool fetchFirst(); |
| bool fetchLast(); |
| |
| int colCount() const; |
| ValueCache &cache(); |
| |
| void virtual_hook(int id, void *data); |
| void detachFromResultSet(); |
| void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy policy); |
| private: |
| bool cacheNext(); |
| QSqlCachedResultPrivate *d; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QSQLCACHEDRESULT_P_H |