diff options
Diffstat (limited to 'kexi/kexidb/drivers/sqlite/sqlitevacuum.h')
-rw-r--r-- | kexi/kexidb/drivers/sqlite/sqlitevacuum.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/kexi/kexidb/drivers/sqlite/sqlitevacuum.h b/kexi/kexidb/drivers/sqlite/sqlitevacuum.h new file mode 100644 index 00000000..4424b7fc --- /dev/null +++ b/kexi/kexidb/drivers/sqlite/sqlitevacuum.h @@ -0,0 +1,70 @@ +/* This file is part of the KDE project + Copyright (C) 2006 Jaroslaw Staniek <[email protected]> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. +*/ + +#ifndef SQLITE_VACUUM_H +#define SQLITE_VACUUM_H + +#include <qobject.h> +#include <qstring.h> + +#include <kexiutils/tristate.h> + +class QProcess; +class KTempFile; +class KProgressDialog; + +//! @short Helper class performing interactive compacting (VACUUM) of the SQLite database +/*! Proved SQLite database filename in the constructor. + Then execute run() should be executed. + + KProgressDialog will be displayed. Its progress bar will be updated whenever another + table's data compacting is performed. User can click "Cancel" button in any time + (except the final committing) to cancel the operation. In this case, + it's guaranteed that the original file remains unchanged. + + This is possible because we rely on SQLite's VACUUM SQL command, which itself temporarily + creates a copy of the original database file, and replaces the orginal with the new only + on success. +*/ +class SQLiteVacuum : public QObject +{ + Q_OBJECT + public: + SQLiteVacuum(const QString& filePath); + ~SQLiteVacuum(); + + /*! Performs compacting procedure. + \return true on success, false on failure and cancelled if user + clicked "Cancel" button in the progress dialog. */ + tristate run(); + + public slots: + void readFromStdout(); + void processExited(); + void cancelClicked(); + + protected: + QString m_filePath; + QProcess *m_process; + KProgressDialog* m_dlg; + int m_percent; + tristate m_result; +}; + +#endif |