1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir #ifndef CONNECTIVITY_SKIPDELETEDSSET_HXX 28*cdf0e10cSrcweir #define CONNECTIVITY_SKIPDELETEDSSET_HXX 29*cdf0e10cSrcweir 30*cdf0e10cSrcweir #include "TResultSetHelper.hxx" 31*cdf0e10cSrcweir #include <rtl/alloc.h> 32*cdf0e10cSrcweir #include <hash_map> 33*cdf0e10cSrcweir #include <vector> 34*cdf0e10cSrcweir #include "connectivity/dbtoolsdllapi.hxx" 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir namespace connectivity 37*cdf0e10cSrcweir { 38*cdf0e10cSrcweir /** 39*cdf0e10cSrcweir the class OSkipDeletedSet supports a general method to skip deleted rows 40*cdf0e10cSrcweir */ 41*cdf0e10cSrcweir class OOO_DLLPUBLIC_DBTOOLS OSkipDeletedSet 42*cdf0e10cSrcweir { 43*cdf0e10cSrcweir ::std::vector<sal_Int32> m_aBookmarksPositions;// vector of iterators to position map, the order is the logical position 44*cdf0e10cSrcweir IResultSetHelper* m_pHelper; // used for moving in the resultset 45*cdf0e10cSrcweir bool m_bDeletedVisible; 46*cdf0e10cSrcweir 47*cdf0e10cSrcweir sal_Bool moveAbsolute(sal_Int32 _nOffset,sal_Bool _bRetrieveData); 48*cdf0e10cSrcweir public: 49*cdf0e10cSrcweir OSkipDeletedSet(IResultSetHelper* _pHelper); 50*cdf0e10cSrcweir ~OSkipDeletedSet(); 51*cdf0e10cSrcweir 52*cdf0e10cSrcweir inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW( () ) 53*cdf0e10cSrcweir { return ::rtl_allocateMemory( nSize ); } 54*cdf0e10cSrcweir inline static void * SAL_CALL operator new( size_t,void* _pHint ) SAL_THROW( () ) 55*cdf0e10cSrcweir { return _pHint; } 56*cdf0e10cSrcweir inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW( () ) 57*cdf0e10cSrcweir { ::rtl_freeMemory( pMem ); } 58*cdf0e10cSrcweir inline static void SAL_CALL operator delete( void *,void* ) SAL_THROW( () ) 59*cdf0e10cSrcweir { } 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir /** 62*cdf0e10cSrcweir skipDeleted moves the resultset to the position defined by the parameters 63*cdf0e10cSrcweir it garantees that the row isn't deleted 64*cdf0e10cSrcweir @param 65*cdf0e10cSrcweir IResultSetHelper::Movement _eCursorPosition in which direction the resultset should be moved 66*cdf0e10cSrcweir sal_Int32 _nOffset the position relativ to the movement 67*cdf0e10cSrcweir sal_Bool _bRetrieveData is true when the current row should be filled which data 68*cdf0e10cSrcweir @return 69*cdf0e10cSrcweir true when the movement was successful otherwise false 70*cdf0e10cSrcweir */ 71*cdf0e10cSrcweir sal_Bool skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, sal_Bool _bRetrieveData); 72*cdf0e10cSrcweir /** 73*cdf0e10cSrcweir clear the map and the vector used in this class 74*cdf0e10cSrcweir */ 75*cdf0e10cSrcweir void clear(); 76*cdf0e10cSrcweir /** 77*cdf0e10cSrcweir getMappedPosition returns the mapped position of a logical position 78*cdf0e10cSrcweir @param 79*cdf0e10cSrcweir sal_Int32 _nBookmark the logical position 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir @return the mapped position 82*cdf0e10cSrcweir */ 83*cdf0e10cSrcweir sal_Int32 getMappedPosition(sal_Int32 _nBookmark) const; 84*cdf0e10cSrcweir /** 85*cdf0e10cSrcweir insertNewPosition adds a new position to the map 86*cdf0e10cSrcweir @param 87*cdf0e10cSrcweir sal_Int32 _nPos the logical position 88*cdf0e10cSrcweir */ 89*cdf0e10cSrcweir void insertNewPosition(sal_Int32 _nPos); 90*cdf0e10cSrcweir /** 91*cdf0e10cSrcweir deletePosition deletes this position from the map and decrement all following positions 92*cdf0e10cSrcweir @param 93*cdf0e10cSrcweir sal_Int32 _nPos the logical position 94*cdf0e10cSrcweir */ 95*cdf0e10cSrcweir void deletePosition(sal_Int32 _nPos); 96*cdf0e10cSrcweir /** 97*cdf0e10cSrcweir getLastPosition returns the last position 98*cdf0e10cSrcweir @return the last position 99*cdf0e10cSrcweir */ 100*cdf0e10cSrcweir inline sal_Int32 getLastPosition() const { return m_aBookmarksPositions.size(); } 101*cdf0e10cSrcweir inline void SetDeletedVisible(bool _bDeletedVisible) { m_bDeletedVisible = _bDeletedVisible; } 102*cdf0e10cSrcweir }; 103*cdf0e10cSrcweir } 104*cdf0e10cSrcweir #endif // CONNECTIVITY_SKIPDELETEDSSET_HXX 105*cdf0e10cSrcweir 106