Line data Source code
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 <rtl/logfile.hxx>
23 :
24 : using namespace connectivity;
25 : // -----------------------------------------------------------------------------
26 0 : OSkipDeletedSet::OSkipDeletedSet(IResultSetHelper* _pHelper)
27 : : m_pHelper(_pHelper)
28 0 : ,m_bDeletedVisible(false)
29 : {
30 : RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "commontools", "Ocke.Janssen@sun.com", "OSkipDeletedSet::OSkipDeletedSet" );
31 0 : m_aBookmarksPositions.reserve(256);
32 0 : }
33 : // -----------------------------------------------------------------------------
34 0 : OSkipDeletedSet::~OSkipDeletedSet()
35 : {
36 0 : m_aBookmarksPositions.clear();
37 : //m_aBookmarks.clear();
38 0 : }
39 : // -----------------------------------------------------------------------------
40 0 : sal_Bool OSkipDeletedSet::skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, sal_Bool _bRetrieveData)
41 : {
42 : RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "commontools", "Ocke.Janssen@sun.com", "OSkipDeletedSet::skipDeleted" );
43 : OSL_ENSURE(_eCursorPosition != IResultSetHelper::BOOKMARK,"OSkipDeletedSet::SkipDeleted can't be called for BOOKMARK");
44 :
45 0 : IResultSetHelper::Movement eDelPosition = _eCursorPosition;
46 0 : sal_Int32 nDelOffset = abs(_nOffset);
47 :
48 0 : switch (_eCursorPosition)
49 : {
50 : case IResultSetHelper::ABSOLUTE:
51 0 : return moveAbsolute(_nOffset,_bRetrieveData);
52 : case IResultSetHelper::FIRST: // set the movement when positioning failed
53 0 : eDelPosition = IResultSetHelper::NEXT;
54 0 : nDelOffset = 1;
55 0 : break;
56 : case IResultSetHelper::LAST:
57 0 : eDelPosition = IResultSetHelper::PRIOR; // lsat row is invalid so position before
58 0 : nDelOffset = 1;
59 0 : break;
60 : case IResultSetHelper::RELATIVE:
61 0 : eDelPosition = (_nOffset >= 0) ? IResultSetHelper::NEXT : IResultSetHelper::PRIOR;
62 0 : break;
63 : default:
64 0 : break;
65 : }
66 :
67 0 : sal_Bool bDone = sal_True;
68 0 : sal_Bool bDataFound = sal_False;
69 :
70 0 : if (_eCursorPosition == IResultSetHelper::LAST)
71 : {
72 : RTL_LOGFILE_CONTEXT_TRACE( aLogger, "OSkipDeletedSet::skipDeleted: last" );
73 0 : sal_Int32 nBookmark = 0;
74 : // first position on the last known row
75 0 : if ( m_aBookmarksPositions.empty() )
76 : {
77 0 : bDataFound = m_pHelper->move(IResultSetHelper::FIRST, 0, _bRetrieveData);
78 0 : if(bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
79 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
80 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
81 : }
82 : else
83 : {
84 : // I already have a bookmark so we can positioned on that and look if it is the last one
85 0 : nBookmark = (*m_aBookmarksPositions.rbegin())/*->first*/;
86 :
87 0 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK, nBookmark, _bRetrieveData);
88 : OSL_ENSURE((m_bDeletedVisible || !m_pHelper->isRowDeleted()),"A bookmark should not be deleted!");
89 : }
90 :
91 :
92 : // and than move forward until we are after the last row
93 0 : while(bDataFound)
94 : {
95 0 : bDataFound = m_pHelper->move(IResultSetHelper::NEXT, 1, sal_False); // we don't need the data here
96 0 : if( bDataFound && ( m_bDeletedVisible || !m_pHelper->isRowDeleted()) )
97 : { // we weren't on the last row we remember it and move on
98 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
99 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
100 : }
101 0 : else if(!bDataFound && !m_aBookmarksPositions.empty() )
102 : {
103 : // i already know the last bookmark :-)
104 : // now we only have to repositioning us to the last row
105 0 : nBookmark = (*m_aBookmarksPositions.rbegin())/*->first*/;
106 0 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK, nBookmark, _bRetrieveData);
107 0 : break;
108 : }
109 : }
110 0 : return bDataFound;
111 : }
112 0 : else if (_eCursorPosition != IResultSetHelper::RELATIVE)
113 : {
114 0 : bDataFound = m_pHelper->move(_eCursorPosition, _nOffset, _bRetrieveData);
115 0 : bDone = bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted());
116 : }
117 : else
118 : {
119 0 : bDataFound = m_pHelper->move(eDelPosition, 1, _bRetrieveData);
120 0 : if (bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
121 : {
122 0 : bDone = (--nDelOffset) == 0;
123 0 : if ( !bDone )
124 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
125 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
126 : }
127 : else
128 0 : bDone = sal_False;
129 : }
130 :
131 0 : while (bDataFound && !bDone) // Iterate until we are at the valid set
132 : {
133 0 : bDataFound = m_pHelper->move(eDelPosition, 1, _bRetrieveData);
134 0 : if (_eCursorPosition != IResultSetHelper::RELATIVE)
135 0 : bDone = bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted());
136 0 : else if (bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
137 : {
138 0 : bDone = (--nDelOffset) == 0;
139 0 : if ( !bDone )
140 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
141 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
142 : }
143 : else
144 0 : bDone = sal_False;
145 : }
146 :
147 0 : if(bDataFound && bDone)
148 : {
149 0 : const sal_Int32 nDriverPos = m_pHelper->getDriverPos();
150 0 : if ( m_bDeletedVisible )
151 : {
152 0 : if ( nDriverPos > (sal_Int32)m_aBookmarksPositions.size() )
153 0 : m_aBookmarksPositions.push_back(nDriverPos);
154 : }
155 0 : else if ( ::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),nDriverPos) == m_aBookmarksPositions.end() )
156 0 : m_aBookmarksPositions.push_back(nDriverPos);
157 : /*sal_Int32 nDriverPos = m_pHelper->getDriverPos();
158 : if(m_aBookmarks.find(nDriverPos) == m_aBookmarks.end())
159 : m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(nDriverPos,m_aBookmarksPositions.size()+1)).first);*/
160 : }
161 :
162 0 : return bDataFound;
163 : }
164 : // -------------------------------------------------------------------------
165 0 : sal_Bool OSkipDeletedSet::moveAbsolute(sal_Int32 _nPos,sal_Bool _bRetrieveData)
166 : {
167 : RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "commontools", "Ocke.Janssen@sun.com", "OSkipDeletedSet::moveAbsolute" );
168 0 : sal_Bool bDataFound = sal_False;
169 0 : sal_Int32 nNewPos = _nPos;
170 0 : if(nNewPos > 0)
171 : {
172 0 : if((sal_Int32)m_aBookmarksPositions.size() < nNewPos)
173 : {
174 : // bookmark isn't known yet
175 : // start at the last known position
176 0 : sal_Int32 nCurPos = 0,nLastBookmark = 1;
177 0 : if ( m_aBookmarksPositions.empty() )
178 : {
179 0 : bDataFound = m_pHelper->move(IResultSetHelper::FIRST, 0, _bRetrieveData );
180 0 : if(bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
181 : {
182 0 : ++nCurPos;
183 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
184 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
185 0 : --nNewPos;
186 : }
187 : } // if ( m_aBookmarksPositions.empty() )
188 : else
189 : {
190 0 : nLastBookmark = (*m_aBookmarksPositions.rbegin())/*->first*/;
191 0 : nCurPos = /*(**/m_aBookmarksPositions.size()/*->second*/;
192 0 : nNewPos = nNewPos - nCurPos;
193 0 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK, nLastBookmark, _bRetrieveData);
194 : }
195 :
196 : // now move to that row we need and don't count deleted rows
197 0 : while (bDataFound && nNewPos)
198 : {
199 0 : bDataFound = m_pHelper->move(IResultSetHelper::NEXT, 1, _bRetrieveData);
200 0 : if(bDataFound && (m_bDeletedVisible || !m_pHelper->isRowDeleted()))
201 : {
202 0 : ++nCurPos;
203 0 : m_aBookmarksPositions.push_back(m_pHelper->getDriverPos());
204 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(m_pHelper->getDriverPos(),m_aBookmarksPositions.size()+1)).first);
205 0 : --nNewPos;
206 : }
207 : }
208 : }
209 : else
210 : {
211 0 : const sal_Int32 nBookmark = m_aBookmarksPositions[nNewPos-1]/*->first*/;
212 0 : bDataFound = m_pHelper->move(IResultSetHelper::BOOKMARK,nBookmark, _bRetrieveData);
213 : OSL_ENSURE((m_bDeletedVisible || !m_pHelper->isRowDeleted()),"moveAbsolute: row can't be deleted!");
214 : }
215 : }
216 : else
217 : {
218 0 : ++nNewPos;
219 0 : bDataFound = skipDeleted(IResultSetHelper::LAST,0,nNewPos == 0);
220 :
221 0 : for(sal_Int32 i=nNewPos+1;bDataFound && i <= 0;++i)
222 0 : bDataFound = skipDeleted(IResultSetHelper::PRIOR,1,i == 0);
223 :
224 : }
225 0 : return bDataFound;
226 : }
227 : // -----------------------------------------------------------------------------
228 0 : void OSkipDeletedSet::clear()
229 : {
230 : RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "commontools", "Ocke.Janssen@sun.com", "OSkipDeletedSet::clear" );
231 0 : ::std::vector<sal_Int32>().swap(m_aBookmarksPositions);
232 : //TInt2IntMap().swap(m_aBookmarks);
233 0 : }
234 : // -----------------------------------------------------------------------------
235 0 : sal_Int32 OSkipDeletedSet::getMappedPosition(sal_Int32 _nPos) const
236 : {
237 : RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "commontools", "Ocke.Janssen@sun.com", "OSkipDeletedSet::getMappedPosition" );
238 0 : ::std::vector<sal_Int32>::const_iterator aFind = ::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),_nPos);
239 0 : if ( aFind != m_aBookmarksPositions.end() )
240 0 : return (aFind - m_aBookmarksPositions.begin()) + 1;
241 : /*TInt2IntMap::const_iterator aFind = m_aBookmarks.find(_nPos);
242 : OSL_ENSURE(aFind != m_aBookmarks.end(),"OSkipDeletedSet::getMappedPosition() invalid bookmark!");
243 : return aFind->second;*/
244 : OSL_FAIL("Why!");
245 0 : return -1;
246 : }
247 : // -----------------------------------------------------------------------------
248 0 : void OSkipDeletedSet::insertNewPosition(sal_Int32 _nPos)
249 : {
250 : RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "commontools", "Ocke.Janssen@sun.com", "OSkipDeletedSet::insertNewPosition" );
251 : //OSL_ENSURE(m_aBookmarks.find(_nPos) == m_aBookmarks.end(),"OSkipDeletedSet::insertNewPosition: Invalid position");
252 : //m_aBookmarksPositions.push_back(m_aBookmarks.insert(TInt2IntMap::value_type(_nPos,m_aBookmarksPositions.size()+1)).first);
253 : //OSL_ENSURE(::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),_nPos) == m_aBookmarksPositions.end(),"Invalid driver pos");
254 0 : m_aBookmarksPositions.push_back(_nPos);
255 0 : }
256 : // -----------------------------------------------------------------------------
257 0 : void OSkipDeletedSet::deletePosition(sal_Int32 _nBookmark)
258 : {
259 : RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "commontools", "Ocke.Janssen@sun.com", "OSkipDeletedSet::deletePosition" );
260 0 : ::std::vector<sal_Int32>::iterator aFind = ::std::find(m_aBookmarksPositions.begin(),m_aBookmarksPositions.end(),_nBookmark);
261 0 : if ( aFind != m_aBookmarksPositions.end() )
262 : {
263 : //TInt2IntMap::iterator aFind = m_aBookmarks.find(_nPos);
264 : //OSL_ENSURE(aFind != m_aBookmarks.end(),"OSkipDeletedSet::deletePosition() bookmark not found!");
265 : //TInt2IntMap::iterator aIter = aFind;
266 0 : m_aBookmarksPositions.erase(aFind);
267 : //for (; aFind != m_aBookmarksPositions.end() ; ++aIter)
268 : // --(aFind->second);
269 : } // if ( aFind != m_aBookmarksPositions.end() )
270 : //m_aBookmarksPositions.erase(m_aBookmarksPositions.begin() + aFind->second-1);
271 : //m_aBookmarks.erase(_nPos);
272 0 : }
273 : // -----------------------------------------------------------------------------
274 :
275 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
