80 lines
3.4 KiB
C++
80 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include "TResultSetHelper.hxx"
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#include <vector>
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#include <connectivity/dbtoolsdllapi.hxx>
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namespace connectivity
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{
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/**
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the class OSkipDeletedSet supports a general method to skip deleted rows
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*/
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class OOO_DLLPUBLIC_DBTOOLS OSkipDeletedSet
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{
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std::vector<sal_Int32> m_aBookmarksPositions;// vector of iterators to position map, the order is the logical position
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IResultSetHelper* m_pHelper; // used for moving in the resultset
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bool m_bDeletedVisible;
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bool moveAbsolute(sal_Int32 _nOffset,bool _bRetrieveData);
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public:
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OSkipDeletedSet(IResultSetHelper* _pHelper);
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~OSkipDeletedSet();
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/**
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skipDeleted moves the resultset to the position defined by the parameters
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it guarantees that the row isn't deleted
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@param
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IResultSetHelper::Movement _eCursorPosition in which direction the resultset should be moved
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sal_Int32 _nOffset the position relative to the movement
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sal_Bool _bRetrieveData is true when the current row should be filled which data
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@return
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true when the movement was successful otherwise false
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*/
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bool skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, bool _bRetrieveData);
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/**
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clear the map and the vector used in this class
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*/
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void clear();
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/**
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getMappedPosition returns the mapped position of a logical position
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@param
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sal_Int32 _nBookmark the logical position
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@return the mapped position
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*/
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sal_Int32 getMappedPosition(sal_Int32 _nBookmark) const;
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/**
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insertNewPosition adds a new position to the map
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@param
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sal_Int32 _nPos the logical position
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*/
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void insertNewPosition(sal_Int32 _nPos);
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/**
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deletePosition deletes this position from the map and decrement all following positions
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@param
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sal_Int32 _nPos the logical position
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*/
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void deletePosition(sal_Int32 _nPos);
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void SetDeletedVisible(bool _bDeletedVisible) { m_bDeletedVisible = _bDeletedVisible; }
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};
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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