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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/private/qtsqlglobal_p.h> |
| #include "QtSql/qsqlresult.h" |
| #include "QtSql/private/qsqlresult_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QVariant; |
| template <typename T> class QVector; |
| |
| class QSqlCachedResultPrivate; |
| |
| class Q_SQL_EXPORT QSqlCachedResult: public QSqlResult |
| { |
| Q_DECLARE_PRIVATE(QSqlCachedResult) |
| |
| public: |
| typedef QVector<QVariant> ValueCache; |
| |
| protected: |
| QSqlCachedResult(QSqlCachedResultPrivate &d); |
| |
| void init(int colCount); |
| void cleanup(); |
| void clearValues(); |
| |
| virtual bool gotoNext(ValueCache &values, int index) = 0; |
| |
| QVariant data(int i) override; |
| bool isNull(int i) override; |
| bool fetch(int i) override; |
| bool fetchNext() override; |
| bool fetchPrevious() override; |
| bool fetchFirst() override; |
| bool fetchLast() override; |
| |
| int colCount() const; |
| ValueCache &cache(); |
| |
| void virtual_hook(int id, void *data) override; |
| void detachFromResultSet() override; |
| void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy policy) override; |
| private: |
| bool cacheNext(); |
| }; |
| |
| class Q_SQL_EXPORT QSqlCachedResultPrivate: public QSqlResultPrivate |
| { |
| Q_DECLARE_PUBLIC(QSqlCachedResult) |
| |
| public: |
| QSqlCachedResultPrivate(QSqlCachedResult *q, const QSqlDriver *drv); |
| bool canSeek(int i) const; |
| inline int cacheCount() const; |
| void init(int count, bool fo); |
| void cleanup(); |
| int nextIndex(); |
| void revertLast(); |
| |
| QSqlCachedResult::ValueCache cache; |
| int rowCacheEnd; |
| int colCount; |
| bool atEnd; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QSQLCACHEDRESULT_P_H |