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Diffstat (limited to 'connectivity/source/inc/TSkipDeletedSet.hxx')
-rw-r--r-- | connectivity/source/inc/TSkipDeletedSet.hxx | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/connectivity/source/inc/TSkipDeletedSet.hxx b/connectivity/source/inc/TSkipDeletedSet.hxx new file mode 100644 index 000000000000..259cd28347d2 --- /dev/null +++ b/connectivity/source/inc/TSkipDeletedSet.hxx @@ -0,0 +1,125 @@ +/************************************************************************* + * + * $RCSfile: TSkipDeletedSet.hxx,v $ + * + * $Revision: 1.1 $ + * + * last change: $Author: oj $ $Date: 2001-10-26 07:40:58 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the License); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an AS IS basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ +#ifndef CONNECTIVITY_SKIPDELETEDSSET_HXX +#define CONNECTIVITY_SKIPDELETEDSSET_HXX + +#ifndef CONNECTIVITY_TRESULTSETHELPER_HXX +#include "TResultSetHelper.hxx" +#endif + +#include <map> +#include <vector> + +namespace connectivity +{ + /** + the class OSkipDeletedSet supports a general method to skip deleted rows + */ + class OSkipDeletedSet + { + typedef ::std::map<sal_Int32,sal_Int32> TInt2IntMap; + TInt2IntMap m_aBookmarks; // map from postion to logical position + ::std::vector<TInt2IntMap::iterator> m_aBookmarksPositions;// vector of iterators to position map, the order is the logical position + IResultSetHelper* m_pHelper; // used for moving in the resultset + + sal_Bool moveAbsolute(sal_Int32 _nOffset,sal_Bool _bRetrieveData); + public: + OSkipDeletedSet(IResultSetHelper* _pHelper); + + /** + skipDeleted moves the resultset to the position defined by the parameters + it garantees that the row isn't deleted + @param + IResultSetHelper::Movement _eCursorPosition in which direction the resultset should be moved + sal_Int32 _nOffset the position relativ to the movement + sal_Bool _bRetrieveData is true when the current row should be filled which data + @return + true when the movement was successful otherwise false + */ + sal_Bool skipDeleted(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, sal_Bool _bRetrieveData); + /** + clear the map and the vector used in this class + */ + void clear(); + /** + getMappedPosition returns the mapped position of a logical position + @param + sal_Int32 _nPos the logical position + + @return the mapped position + */ + sal_Int32 getMappedPosition(sal_Int32 _nPos) const; + /** + insertNewPosition adds a new position to the map + @param + sal_Int32 _nPos the logical position + */ + void insertNewPosition(sal_Int32 _nPos); + /** + deletePosition deletes this position from the map and decrement all following positions + @param + sal_Int32 _nPos the logical position + */ + void deletePosition(sal_Int32 _nPos); + }; +} +#endif // CONNECTIVITY_SKIPDELETEDSSET_HXX + |