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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 :
20 : #include "TSkipDeletedSet.hxx"
21 : #include <osl/diagnose.h>
22 : #include <sal/log.hxx>
23 :
24 : using namespace connectivity;
25 :
26 46 : OSkipDeletedSet::OSkipDeletedSet(IResultSetHelper* _pHelper)
27 : : m_pHelper(_pHelper)
28 46 : ,m_bDeletedVisible(false)
29 : {
30 46 : m_aBookmarksPositions.reserve(256);
31 46 : }
32 :
33 92 : OSkipDeletedSet::~OSkipDeletedSet()
34 : {
35 46 : m_aBookmarksPositions.clear();
36 : //m_aBookmarks.clear();
37 46 : }
38 :
39 730 : bool OSkipDeletedSet::skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, bool _bRetrieveData)
40 : {
41 : OSL_ENSURE(_eCursorPosition != IResultSetHelper::BOOKMARK,"OSkipDeletedSet::SkipDeleted can't be called for BOOKMARK");
42 :
43 730 : IResultSetHelper::Movement eDelPosition = _eCursorPosition;
44 730 : sal_Int32 nDelOffset = abs(_nOffset);
45 :
46 730 : switch (_eCursorPosition)
47 : {
48 : case IResultSetHelper::ABSOLUTE1:
49 140 : return moveAbsolute(_nOffset,_bRetrieveData);
50 : case IResultSetHelper::FIRST: // set the movement when positioning failed
51 118 : eDelPosition = IResultSetHelper::NEXT;
52 118 : nDelOffset = 1;
53 118 : break;
54 : case IResultSetHelper::LAST:
55 20 : eDelPosition = IResultSetHelper::PRIOR; // last row is invalid so position before
56 20 : nDelOffset = 1;
57 20 : break;
58 : case IResultSetHelper::RELATIVE1:
59 0 : eDelPosition = (_nOffset >= 0) ? IResultSetHelper::NEXT : IResultSetHelper::PRIOR;
60 0 : break;
61 : default:
62 452 : break;
63 : }
64 :
65 590 : bool bDone = true;
66 590 : bool bDataFound = false;
67 :
68 590 : if (_eCursorPosition == IResultSetHelper::LAST)
69 : {
70 : SAL_INFO( "connectivity.commontools", "OSkipDeletedSet::skipDeleted: last" );
71 20 : sal_Int32 nBookmark = 0;
72 : // first position on the last known row
73 20 : if ( m_aBookmarksPositions.empty() )
74 : {
75 0 : bDataFound = m_pHelper->move(IResultSetHelper::FIRST, 0, _bRetrieveData);
76 0 : if(bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
77 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
78 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
79 : }
80 : else
81 : {
82 : // I already have a bookmark so we can positioned on that and look if it is the last one
83 20 : nBookmark = (*m_aBookmarksPositions.rbegin())/*->first*/;
84 :
85 20 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK, nBookmark, _bRetrieveData);
86 : OSL_ENSURE((m_bDeletedVisible || !m_pHelper->isRowDeleted()),"A bookmark should not be deleted!");
87 : }
88 :
89 :
90 : // and then move forward until we are after the last row
91 40 : while(bDataFound)
92 : {
93 20 : bDataFound = m_pHelper->move(IResultSetHelper::NEXT, 1, false); // we don't need the data here
94 20 : if( bDataFound && ( m_bDeletedVisible || !m_pHelper->isRowDeleted()) )
95 : { // we weren't on the last row we remember it and move on
96 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
97 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
98 : }
99 20 : else if(!bDataFound && !m_aBookmarksPositions.empty() )
100 : {
101 : // i already know the last bookmark :-)
102 : // now we only have to repositioning us to the last row
103 20 : nBookmark = (*m_aBookmarksPositions.rbegin())/*->first*/;
104 20 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK, nBookmark, _bRetrieveData);
105 20 : break;
106 : }
107 : }
108 20 : return bDataFound;
109 : }
110 570 : else if (_eCursorPosition != IResultSetHelper::RELATIVE1)
111 : {
112 570 : bDataFound = m_pHelper->move(_eCursorPosition, _nOffset, _bRetrieveData);
113 570 : bDone = bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted());
114 : }
115 : else
116 : {
117 0 : bDataFound = m_pHelper->move(eDelPosition, 1, _bRetrieveData);
118 0 : if (bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
119 : {
120 0 : bDone = (--nDelOffset) == 0;
121 0 : if ( !bDone )
122 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
123 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
124 : }
125 : else
126 0 : bDone = false;
127 : }
128 :
129 4558 : while (bDataFound && !bDone) // Iterate until we are at the valid set
130 : {
131 3418 : bDataFound = m_pHelper->move(eDelPosition, 1, _bRetrieveData);
132 3418 : if (_eCursorPosition != IResultSetHelper::RELATIVE1)
133 3418 : bDone = bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted());
134 0 : else if (bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
135 : {
136 0 : bDone = (--nDelOffset) == 0;
137 0 : if ( !bDone )
138 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
139 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
140 : }
141 : else
142 0 : bDone = false;
143 : }
144 :
145 570 : if(bDataFound && bDone)
146 : {
147 444 : const sal_Int32 nDriverPos = m_pHelper->getDriverPos();
148 444 : if ( m_bDeletedVisible )
149 : {
150 0 : if ( nDriverPos > (sal_Int32)m_aBookmarksPositions.size() )
151 0 : m_aBookmarksPositions.push_back(nDriverPos);
152 : }
153 444 : else if ( ::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),nDriverPos) == m_aBookmarksPositions.end() )
154 340 : m_aBookmarksPositions.push_back(nDriverPos);
155 : /*sal_Int32 nDriverPos = m_pHelper->getDriverPos();
156 : if(m_aBookmarks.find(nDriverPos) == m_aBookmarks.end())
157 : m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(nDriverPos,m_aBookmarksPositions.size()+1)).first);*/
158 : }
159 :
160 570 : return bDataFound;
161 : }
162 :
163 140 : bool OSkipDeletedSet::moveAbsolute(sal_Int32 _nPos,bool _bRetrieveData)
164 : {
165 140 : bool bDataFound = false;
166 140 : sal_Int32 nNewPos = _nPos;
167 140 : if(nNewPos > 0)
168 : {
169 140 : if((sal_Int32)m_aBookmarksPositions.size() < nNewPos)
170 : {
171 : // bookmark isn't known yet
172 : // start at the last known position
173 50 : sal_Int32 nCurPos = 0,nLastBookmark = 1;
174 50 : if ( m_aBookmarksPositions.empty() )
175 : {
176 18 : bDataFound = m_pHelper->move(IResultSetHelper::FIRST, 0, _bRetrieveData );
177 18 : if(bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
178 : {
179 2 : ++nCurPos;
180 2 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
181 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
182 2 : --nNewPos;
183 : }
184 : } // if ( m_aBookmarksPositions.empty() )
185 : else
186 : {
187 32 : nLastBookmark = (*m_aBookmarksPositions.rbegin())/*->first*/;
188 32 : nCurPos = /*(**/m_aBookmarksPositions.size()/*->second*/;
189 32 : nNewPos = nNewPos - nCurPos;
190 32 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK, nLastBookmark, _bRetrieveData);
191 : }
192 :
193 : // now move to that row we need and don't count deleted rows
194 132 : while (bDataFound && nNewPos)
195 : {
196 32 : bDataFound = m_pHelper->move(IResultSetHelper::NEXT, 1, _bRetrieveData);
197 32 : if(bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
198 : {
199 0 : ++nCurPos;
200 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
201 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
202 0 : --nNewPos;
203 : }
204 : }
205 : }
206 : else
207 : {
208 90 : const sal_Int32 nBookmark = m_aBookmarksPositions[nNewPos-1]/*->first*/;
209 90 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK,nBookmark, _bRetrieveData);
210 : OSL_ENSURE((m_bDeletedVisible || !m_pHelper->isRowDeleted()),"moveAbsolute: row can't be deleted!");
211 : }
212 : }
213 : else
214 : {
215 0 : ++nNewPos;
216 0 : bDataFound = skipDeleted(IResultSetHelper::LAST,0,nNewPos == 0);
217 :
218 0 : for(sal_Int32 i=nNewPos+1;bDataFound && i <= 0;++i)
219 0 : bDataFound = skipDeleted(IResultSetHelper::PRIOR,1,i == 0);
220 :
221 : }
222 140 : return bDataFound;
223 : }
224 :
225 92 : void OSkipDeletedSet::clear()
226 : {
227 92 : ::std::vector<sal_Int32>().swap(m_aBookmarksPositions);
228 : //TInt2IntMap().swap(m_aBookmarks);
229 92 : }
230 :
231 76 : sal_Int32 OSkipDeletedSet::getMappedPosition(sal_Int32 _nPos) const
232 : {
233 76 : ::std::vector<sal_Int32>::const_iterator aFind = ::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),_nPos);
234 76 : if ( aFind != m_aBookmarksPositions.end() )
235 76 : return (aFind - m_aBookmarksPositions.begin()) + 1;
236 : /*TInt2IntMap::const_iterator aFind = m_aBookmarks.find(_nPos);
237 : OSL_ENSURE(aFind != m_aBookmarks.end(),"OSkipDeletedSet::getMappedPosition() invalid bookmark!");
238 : return aFind->second;*/
239 : OSL_FAIL("Why!");
240 0 : return -1;
241 : }
242 :
243 2 : void OSkipDeletedSet::insertNewPosition(sal_Int32 _nPos)
244 : {
245 : //OSL_ENSURE(m_aBookmarks.find(_nPos) == m_aBookmarks.end(),"OSkipDeletedSet::insertNewPosition: Invalid position");
246 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(_nPos,m_aBookmarksPositions.size()+1)).first);
247 : //OSL_ENSURE(::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),_nPos) == m_aBookmarksPositions.end(),"Invalid driver pos");
248 2 : m_aBookmarksPositions.push_back(_nPos);
249 2 : }
250 :
251 2 : void OSkipDeletedSet::deletePosition(sal_Int32 _nBookmark)
252 : {
253 2 : ::std::vector<sal_Int32>::iterator aFind = ::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),_nBookmark);
254 2 : if ( aFind != m_aBookmarksPositions.end() )
255 : {
256 : //TInt2IntMap::iterator aFind = m_aBookmarks.find(_nPos);
257 : //OSL_ENSURE(aFind != m_aBookmarks.end(),"OSkipDeletedSet::deletePosition() bookmark not found!");
258 : //TInt2IntMap::iterator aIter = aFind;
259 2 : m_aBookmarksPositions.erase(aFind);
260 : //for (; aFind != m_aBookmarksPositions.end() ; ++aIter)
261 : // --(aFind->second);
262 : } // if ( aFind != m_aBookmarksPositions.end() )
263 : //m_aBookmarksPositions.erase(m_aBookmarksPositions.begin() + aFind->second-1);
264 : //m_aBookmarks.erase(_nPos);
265 2 : }
266 :
267 :
268 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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