1caf5cd79SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3caf5cd79SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4caf5cd79SAndrew Rist * or more contributor license agreements. See the NOTICE file 5caf5cd79SAndrew Rist * distributed with this work for additional information 6caf5cd79SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7caf5cd79SAndrew Rist * to you under the Apache License, Version 2.0 (the 8caf5cd79SAndrew Rist * "License"); you may not use this file except in compliance 9caf5cd79SAndrew Rist * with the License. You may obtain a copy of the License at 10cdf0e10cSrcweir * 11caf5cd79SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12cdf0e10cSrcweir * 13caf5cd79SAndrew Rist * Unless required by applicable law or agreed to in writing, 14caf5cd79SAndrew Rist * software distributed under the License is distributed on an 15caf5cd79SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16caf5cd79SAndrew Rist * KIND, either express or implied. See the License for the 17caf5cd79SAndrew Rist * specific language governing permissions and limitations 18caf5cd79SAndrew Rist * under the License. 19cdf0e10cSrcweir * 20caf5cd79SAndrew Rist *************************************************************/ 21caf5cd79SAndrew Rist 22caf5cd79SAndrew Rist 23cdf0e10cSrcweir #ifndef CONNECTIVITY_SKIPDELETEDSSET_HXX 24cdf0e10cSrcweir #define CONNECTIVITY_SKIPDELETEDSSET_HXX 25cdf0e10cSrcweir 26cdf0e10cSrcweir #include "TResultSetHelper.hxx" 27cdf0e10cSrcweir #include <rtl/alloc.h> 28cdf0e10cSrcweir #include <hash_map> 29cdf0e10cSrcweir #include <vector> 30cdf0e10cSrcweir #include "connectivity/dbtoolsdllapi.hxx" 31cdf0e10cSrcweir 32cdf0e10cSrcweir namespace connectivity 33cdf0e10cSrcweir { 34cdf0e10cSrcweir /** 35cdf0e10cSrcweir the class OSkipDeletedSet supports a general method to skip deleted rows 36cdf0e10cSrcweir */ 37cdf0e10cSrcweir class OOO_DLLPUBLIC_DBTOOLS OSkipDeletedSet 38cdf0e10cSrcweir { 39cdf0e10cSrcweir ::std::vector<sal_Int32> m_aBookmarksPositions;// vector of iterators to position map, the order is the logical position 40cdf0e10cSrcweir IResultSetHelper* m_pHelper; // used for moving in the resultset 41cdf0e10cSrcweir bool m_bDeletedVisible; 42cdf0e10cSrcweir 43cdf0e10cSrcweir sal_Bool moveAbsolute(sal_Int32 _nOffset,sal_Bool _bRetrieveData); 44cdf0e10cSrcweir public: 45cdf0e10cSrcweir OSkipDeletedSet(IResultSetHelper* _pHelper); 46cdf0e10cSrcweir ~OSkipDeletedSet(); 47cdf0e10cSrcweir operator new(size_t nSize)48cdf0e10cSrcweir inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW( () ) 49cdf0e10cSrcweir { return ::rtl_allocateMemory( nSize ); } operator new(size_t,void * _pHint)50cdf0e10cSrcweir inline static void * SAL_CALL operator new( size_t,void* _pHint ) SAL_THROW( () ) 51cdf0e10cSrcweir { return _pHint; } operator delete(void * pMem)52cdf0e10cSrcweir inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW( () ) 53cdf0e10cSrcweir { ::rtl_freeMemory( pMem ); } operator delete(void *,void *)54cdf0e10cSrcweir inline static void SAL_CALL operator delete( void *,void* ) SAL_THROW( () ) 55cdf0e10cSrcweir { } 56cdf0e10cSrcweir 57cdf0e10cSrcweir /** 58cdf0e10cSrcweir skipDeleted moves the resultset to the position defined by the parameters 59*07a3d7f1SPedro Giffuni it guarantees that the row isn't deleted 60cdf0e10cSrcweir @param 61cdf0e10cSrcweir IResultSetHelper::Movement _eCursorPosition in which direction the resultset should be moved 62cdf0e10cSrcweir sal_Int32 _nOffset the position relativ to the movement 63cdf0e10cSrcweir sal_Bool _bRetrieveData is true when the current row should be filled which data 64cdf0e10cSrcweir @return 65cdf0e10cSrcweir true when the movement was successful otherwise false 66cdf0e10cSrcweir */ 67cdf0e10cSrcweir sal_Bool skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, sal_Bool _bRetrieveData); 68cdf0e10cSrcweir /** 69cdf0e10cSrcweir clear the map and the vector used in this class 70cdf0e10cSrcweir */ 71cdf0e10cSrcweir void clear(); 72cdf0e10cSrcweir /** 73cdf0e10cSrcweir getMappedPosition returns the mapped position of a logical position 74cdf0e10cSrcweir @param 75cdf0e10cSrcweir sal_Int32 _nBookmark the logical position 76cdf0e10cSrcweir 77cdf0e10cSrcweir @return the mapped position 78cdf0e10cSrcweir */ 79cdf0e10cSrcweir sal_Int32 getMappedPosition(sal_Int32 _nBookmark) const; 80cdf0e10cSrcweir /** 81cdf0e10cSrcweir insertNewPosition adds a new position to the map 82cdf0e10cSrcweir @param 83cdf0e10cSrcweir sal_Int32 _nPos the logical position 84cdf0e10cSrcweir */ 85cdf0e10cSrcweir void insertNewPosition(sal_Int32 _nPos); 86cdf0e10cSrcweir /** 87cdf0e10cSrcweir deletePosition deletes this position from the map and decrement all following positions 88cdf0e10cSrcweir @param 89cdf0e10cSrcweir sal_Int32 _nPos the logical position 90cdf0e10cSrcweir */ 91cdf0e10cSrcweir void deletePosition(sal_Int32 _nPos); 92cdf0e10cSrcweir /** 93cdf0e10cSrcweir getLastPosition returns the last position 94cdf0e10cSrcweir @return the last position 95cdf0e10cSrcweir */ getLastPosition() const96cdf0e10cSrcweir inline sal_Int32 getLastPosition() const { return m_aBookmarksPositions.size(); } SetDeletedVisible(bool _bDeletedVisible)97cdf0e10cSrcweir inline void SetDeletedVisible(bool _bDeletedVisible) { m_bDeletedVisible = _bDeletedVisible; } 98cdf0e10cSrcweir }; 99cdf0e10cSrcweir } 100cdf0e10cSrcweir #endif // CONNECTIVITY_SKIPDELETEDSSET_HXX 101