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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
commit | 940b4d1848e8c70ab7642901a68594e8016caffc (patch) | |
tree | eb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /connectivity/source/inc/TSkipDeletedSet.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-1ad18e38974bb28c3d98d0be8f7d8c18fc56de29.tar.xz libreoffice-1ad18e38974bb28c3d98d0be8f7d8c18fc56de29.zip |
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'connectivity/source/inc/TSkipDeletedSet.hxx')
-rw-r--r-- | connectivity/source/inc/TSkipDeletedSet.hxx | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/connectivity/source/inc/TSkipDeletedSet.hxx b/connectivity/source/inc/TSkipDeletedSet.hxx new file mode 100644 index 000000000..393526469 --- /dev/null +++ b/connectivity/source/inc/TSkipDeletedSet.hxx @@ -0,0 +1,82 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ +#ifndef INCLUDED_CONNECTIVITY_SOURCE_INC_TSKIPDELETEDSET_HXX +#define INCLUDED_CONNECTIVITY_SOURCE_INC_TSKIPDELETEDSET_HXX + +#include "TResultSetHelper.hxx" +#include <vector> +#include <connectivity/dbtoolsdllapi.hxx> + +namespace connectivity +{ + /** + the class OSkipDeletedSet supports a general method to skip deleted rows + */ + class OOO_DLLPUBLIC_DBTOOLS OSkipDeletedSet + { + std::vector<sal_Int32> m_aBookmarksPositions;// vector of iterators to position map, the order is the logical position + IResultSetHelper* m_pHelper; // used for moving in the resultset + bool m_bDeletedVisible; + + bool moveAbsolute(sal_Int32 _nOffset,bool _bRetrieveData); + public: + OSkipDeletedSet(IResultSetHelper* _pHelper); + ~OSkipDeletedSet(); + + /** + skipDeleted moves the resultset to the position defined by the parameters + it guarantees that the row isn't deleted + @param + IResultSetHelper::Movement _eCursorPosition in which direction the resultset should be moved + sal_Int32 _nOffset the position relative to the movement + sal_Bool _bRetrieveData is true when the current row should be filled which data + @return + true when the movement was successful otherwise false + */ + bool skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, bool _bRetrieveData); + /** + clear the map and the vector used in this class + */ + void clear(); + /** + getMappedPosition returns the mapped position of a logical position + @param + sal_Int32 _nBookmark the logical position + + @return the mapped position + */ + sal_Int32 getMappedPosition(sal_Int32 _nBookmark) const; + /** + insertNewPosition adds a new position to the map + @param + sal_Int32 _nPos the logical position + */ + void insertNewPosition(sal_Int32 _nPos); + /** + deletePosition deletes this position from the map and decrement all following positions + @param + sal_Int32 _nPos the logical position + */ + void deletePosition(sal_Int32 _nPos); + void SetDeletedVisible(bool _bDeletedVisible) { m_bDeletedVisible = _bDeletedVisible; } + }; +} +#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_TSKIPDELETEDSET_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |