/src/libreoffice/connectivity/source/inc/TSkipDeletedSet.hxx
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
2 | | /* |
3 | | * This file is part of the LibreOffice project. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | * This file incorporates work covered by the following license notice: |
10 | | * |
11 | | * Licensed to the Apache Software Foundation (ASF) under one or more |
12 | | * contributor license agreements. See the NOTICE file distributed |
13 | | * with this work for additional information regarding copyright |
14 | | * ownership. The ASF licenses this file to you under the Apache |
15 | | * License, Version 2.0 (the "License"); you may not use this file |
16 | | * except in compliance with the License. You may obtain a copy of |
17 | | * the License at http://www.apache.org/licenses/LICENSE-2.0 . |
18 | | */ |
19 | | #pragma once |
20 | | |
21 | | #include "TResultSetHelper.hxx" |
22 | | #include <vector> |
23 | | #include <connectivity/dbtoolsdllapi.hxx> |
24 | | |
25 | | namespace connectivity |
26 | | { |
27 | | /** |
28 | | the class OSkipDeletedSet supports a general method to skip deleted rows |
29 | | */ |
30 | | class OOO_DLLPUBLIC_DBTOOLS OSkipDeletedSet |
31 | | { |
32 | | std::vector<sal_Int32> m_aBookmarksPositions;// vector of iterators to position map, the order is the logical position |
33 | | IResultSetHelper* m_pHelper; // used for moving in the resultset |
34 | | bool m_bDeletedVisible; |
35 | | |
36 | | bool moveAbsolute(sal_Int32 _nOffset,bool _bRetrieveData); |
37 | | public: |
38 | | OSkipDeletedSet(IResultSetHelper* _pHelper); |
39 | | ~OSkipDeletedSet(); |
40 | | |
41 | | /** |
42 | | skipDeleted moves the resultset to the position defined by the parameters |
43 | | it guarantees that the row isn't deleted |
44 | | @param |
45 | | IResultSetHelper::Movement _eCursorPosition in which direction the resultset should be moved |
46 | | sal_Int32 _nOffset the position relative to the movement |
47 | | sal_Bool _bRetrieveData is true when the current row should be filled which data |
48 | | @return |
49 | | true when the movement was successful otherwise false |
50 | | */ |
51 | | bool skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, bool _bRetrieveData); |
52 | | /** |
53 | | clear the map and the vector used in this class |
54 | | */ |
55 | | void clear(); |
56 | | /** |
57 | | getMappedPosition returns the mapped position of a logical position |
58 | | @param |
59 | | sal_Int32 _nBookmark the logical position |
60 | | |
61 | | @return the mapped position |
62 | | */ |
63 | | sal_Int32 getMappedPosition(sal_Int32 _nBookmark) const; |
64 | | /** |
65 | | insertNewPosition adds a new position to the map |
66 | | @param |
67 | | sal_Int32 _nPos the logical position |
68 | | */ |
69 | | void insertNewPosition(sal_Int32 _nPos); |
70 | | /** |
71 | | deletePosition deletes this position from the map and decrement all following positions |
72 | | @param |
73 | | sal_Int32 _nPos the logical position |
74 | | */ |
75 | | void deletePosition(sal_Int32 _nPos); |
76 | 19.3k | void SetDeletedVisible(bool _bDeletedVisible) { m_bDeletedVisible = _bDeletedVisible; } |
77 | | }; |
78 | | } |
79 | | |
80 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |