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libreoffice/dbaccess/source/core/api/StaticSet.cxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

276 lines
7.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include "StaticSet.hxx"
#include <com/sun/star/sdbcx/CompareBookmark.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <connectivity/CommonTools.hxx>
#include <comphelper/types.hxx>
#include <o3tl/safeint.hxx>
#include <osl/diagnose.h>
using namespace dbaccess;
using namespace connectivity;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::sdbcx;
void OStaticSet::fillValueRow(ORowSetRow& _rRow,sal_Int32 /*_nPosition*/)
{
_rRow = *m_aSetIter;
}
// css::sdbcx::XRowLocate
Any OStaticSet::getBookmark()
{
return Any(getRow());
}
bool OStaticSet::moveToBookmark( const Any& bookmark )
{
m_bInserted = m_bUpdated = m_bDeleted = false;
return absolute(::comphelper::getINT32(bookmark));
}
sal_Int32 OStaticSet::compareBookmarks( const Any& _first, const Any& _second )
{
sal_Int32 nFirst = 0, nSecond = 0;
_first >>= nFirst;
_second >>= nSecond;
return (nFirst < nSecond) ? CompareBookmark::LESS : ((nFirst > nSecond) ? CompareBookmark::GREATER : CompareBookmark::EQUAL);
}
bool OStaticSet::hasOrderedBookmarks( )
{
return true;
}
sal_Int32 OStaticSet::hashBookmark( const Any& bookmark )
{
return ::comphelper::getINT32(bookmark);
}
bool OStaticSet::fetchRow()
{
bool bRet = false;
if ( !m_bEnd && (!m_nMaxRows || sal_Int32(m_aSet.size()) < m_nMaxRows) )
bRet = m_xDriverSet->next();
if ( bRet )
{
m_aSet.push_back(new connectivity::ORowVector< connectivity::ORowSetValue >(m_xSetMetaData->getColumnCount()));
m_aSetIter = m_aSet.end() - 1;
(**m_aSetIter)[0] = getRow();
OCacheSet::fillValueRow(*m_aSetIter,(**m_aSetIter)[0].getInt32());
}
else
m_bEnd = true;
return bRet;
}
void OStaticSet::fillAllRows()
{
if(m_bEnd)
return;
sal_Int32 nColumnCount = m_xSetMetaData->getColumnCount();
while(m_xDriverSet->next())
{
ORowSetRow pRow = new connectivity::ORowVector< connectivity::ORowSetValue >(nColumnCount);
m_aSet.push_back(pRow);
m_aSetIter = m_aSet.end() - 1;
(*pRow)[0] = getRow();
OCacheSet::fillValueRow(pRow,(*pRow)[0].getInt32());
}
m_bEnd = true;
}
// XResultSet
bool OStaticSet::next()
{
m_bInserted = m_bUpdated = m_bDeleted = false;
if(isAfterLast())
return false;
if(!m_bEnd) // not yet all records fetched
{
++m_aSetIter;
if(m_aSetIter == m_aSet.end() && !fetchRow())
m_aSetIter = m_aSet.end();
}
else if(!isAfterLast())
++m_aSetIter;
return !isAfterLast();
}
bool OStaticSet::isBeforeFirst( )
{
return m_aSetIter == m_aSet.begin();
}
bool OStaticSet::isAfterLast( )
{
return m_aSetIter == m_aSet.end() && m_bEnd;
}
void OStaticSet::beforeFirst( )
{
m_bInserted = m_bUpdated = m_bDeleted = false;
m_aSetIter = m_aSet.begin();
}
void OStaticSet::afterLast( )
{
m_bInserted = m_bUpdated = m_bDeleted = false;
fillAllRows();
m_aSetIter = m_aSet.end();
}
bool OStaticSet::first()
{
m_bInserted = m_bUpdated = m_bDeleted = false;
m_aSetIter = m_aSet.begin()+1;
if(m_aSetIter == m_aSet.end() && !fetchRow())
m_aSetIter = m_aSet.end();
return m_aSetIter != m_aSet.end();
}
bool OStaticSet::last()
{
m_bInserted = m_bUpdated = m_bDeleted = false;
fillAllRows();
m_aSetIter = m_aSet.end()-1;
return !isBeforeFirst() && !isAfterLast();
}
sal_Int32 OStaticSet::getRow( )
{
OSL_ENSURE(!isAfterLast(),"getRow is not allowed when afterlast record!");
OSL_ENSURE(!isBeforeFirst(),"getRow is not allowed when beforefirst record!");
sal_Int32 nPos = m_aSet.size() - (m_aSet.end() - m_aSetIter);
OSL_ENSURE(nPos > 0,"RowPos is < 0");
return nPos;
}
bool OStaticSet::absolute( sal_Int32 row )
{
m_bInserted = m_bUpdated = m_bDeleted = false;
OSL_ENSURE(row,"OStaticSet::absolute: INVALID row number!");
// if row greater 0 than count from end - row means last
if(row < 0)
{
if(!m_bEnd)
fillAllRows();
sal_Int32 nRow = getRow();
nRow += row;
if(nRow <= static_cast<sal_Int32>(m_aSet.size()))
m_aSetIter = m_aSet.begin() + nRow;
else
m_aSetIter = m_aSet.begin();
}
else if(row > 0)
{
if(o3tl::make_unsigned(row) >= m_aSet.size())
{
if(!m_bEnd)
{
bool bNext = true;
for(sal_Int32 i=m_aSet.size()-1;i < row && bNext;++i)
bNext = fetchRow();
}
if(o3tl::make_unsigned(row) > m_aSet.size())
m_aSetIter = m_aSet.end(); // check again
else
m_aSetIter = m_aSet.begin() + row;
}
else
m_aSetIter = m_aSet.begin() + row;
}
return m_aSetIter != m_aSet.end() && m_aSetIter != m_aSet.begin();
}
bool OStaticSet::previous( )
{
m_bInserted = m_bUpdated = m_bDeleted = false;
if(m_aSetIter != m_aSet.begin())
--m_aSetIter;
return m_aSetIter != m_aSet.begin();
}
void OStaticSet::refreshRow( )
{
}
bool OStaticSet::rowUpdated( )
{
return m_bUpdated;
}
bool OStaticSet::rowInserted( )
{
return m_bInserted;
}
bool OStaticSet::rowDeleted( )
{
return m_bDeleted;
}
void OStaticSet::insertRow( const ORowSetRow& _rInsertRow,const connectivity::OSQLTable& _xTable )
{
OCacheSet::insertRow( _rInsertRow,_xTable);
if(m_bInserted)
{
m_aSet.push_back(new ORowVector< ORowSetValue >(*_rInsertRow)); // we don't know where the new row is so we append it to the current rows
m_aSetIter = m_aSet.end() - 1;
(**m_aSetIter)[0] = (*_rInsertRow)[0] = getBookmark();
m_bEnd = false;
}
}
void OStaticSet::deleteRow(const ORowSetRow& _rDeleteRow ,const connectivity::OSQLTable& _xTable )
{
OCacheSet::deleteRow(_rDeleteRow,_xTable);
if(m_bDeleted)
{
ORowSetMatrix::iterator aPos = m_aSet.begin()+(*_rDeleteRow)[0].getInt32();
if(aPos == (m_aSet.end()-1))
m_aSetIter = m_aSet.end();
m_aSet.erase(aPos);
}
}
void OStaticSet::reset(const Reference< XResultSet> &_xDriverSet)
{
OCacheSet::construct(_xDriverSet, m_sRowSetFilter);
ORowSetMatrix().swap(m_aSet);
m_aSetIter = m_aSet.end();
m_bEnd = false;
m_aSet.emplace_back(nullptr); // this is the beforefirst record
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */