117 lines
4.6 KiB
C++
117 lines
4.6 KiB
C++
/*************************************************************************
|
|
*
|
|
* OpenOffice.org - a multi-platform office productivity suite
|
|
*
|
|
* $RCSfile: TSkipDeletedSet.hxx,v $
|
|
*
|
|
* $Revision: 1.6 $
|
|
*
|
|
* last change: $Author: hr $ $Date: 2006-06-20 01:58:03 $
|
|
*
|
|
* The Contents of this file are made available subject to
|
|
* the terms of GNU Lesser General Public License Version 2.1.
|
|
*
|
|
*
|
|
* GNU Lesser General Public License Version 2.1
|
|
* =============================================
|
|
* Copyright 2005 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
|
|
*
|
|
************************************************************************/
|
|
#ifndef CONNECTIVITY_SKIPDELETEDSSET_HXX
|
|
#define CONNECTIVITY_SKIPDELETEDSSET_HXX
|
|
|
|
#ifndef CONNECTIVITY_TRESULTSETHELPER_HXX
|
|
#include "TResultSetHelper.hxx"
|
|
#endif
|
|
|
|
#ifndef _RTL_ALLOC_H_
|
|
#include <rtl/alloc.h>
|
|
#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);
|
|
~OSkipDeletedSet();
|
|
|
|
inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW( () )
|
|
{ return ::rtl_allocateMemory( nSize ); }
|
|
inline static void * SAL_CALL operator new( size_t,void* _pHint ) SAL_THROW( () )
|
|
{ return _pHint; }
|
|
inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW( () )
|
|
{ ::rtl_freeMemory( pMem ); }
|
|
inline static void SAL_CALL operator delete( void *,void* ) SAL_THROW( () )
|
|
{ }
|
|
|
|
/**
|
|
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);
|
|
/**
|
|
getLastPosition returns the last position
|
|
@return the last position
|
|
*/
|
|
sal_Int32 getLastPosition() const { return m_aBookmarksPositions.size(); }
|
|
};
|
|
}
|
|
#endif // CONNECTIVITY_SKIPDELETEDSSET_HXX
|
|
|