libreoffice/connectivity/source/drivers/file/FPreparedStatement.cxx

/*************************************************************************
 *
 *  $RCSfile: FPreparedStatement.cxx,v $
 *
 *  $Revision: 1.26 $
 *
 *  last change: $Author: oj $ $Date: 2001-12-03 12:11:40 $
 *
 *  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): _______________________________________
 *
 *
 ************************************************************************/

#include <stdio.h>

#ifndef _CONNECTIVITY_SDBCX_COLUMN_HXX_
#include "connectivity/sdbcx/VColumn.hxx"
#endif
#ifndef _OSL_DIAGNOSE_H_
#include <osl/diagnose.h>
#endif
#ifndef _CONNECTIVITY_FILE_OPREPAREDSTATEMENT_HXX_
#include "file/FPreparedStatement.hxx"
#endif
#ifndef _COM_SUN_STAR_SDBC_DATATYPE_HPP_
#include <com/sun/star/sdbc/DataType.hpp>
#endif
#ifndef _CONNECTIVITY_FILE_ORESULTSETMETADATA_HXX_
#include "file/FResultSetMetaData.hxx"
#endif
#ifndef _CPPUHELPER_TYPEPROVIDER_HXX_
#include <cppuhelper/typeprovider.hxx>
#endif
#ifndef _COMPHELPER_SEQUENCE_HXX_
#include <comphelper/sequence.hxx>
#endif
#ifndef _COM_SUN_STAR_LANG_DISPOSEDEXCEPTION_HPP_
#include <com/sun/star/lang/DisposedException.hpp>
#endif
#ifndef _DBHELPER_DBCONVERSION_HXX_
#include "connectivity/dbconversion.hxx"
#endif
#ifndef _DBHELPER_DBEXCEPTION_HXX_
#include "connectivity/dbexception.hxx"
#endif
#ifndef _CONNECTIVITY_DBTOOLS_HXX_
#include "connectivity/dbtools.hxx"
#endif
#ifndef _COMPHELPER_TYPES_HXX_
#include <comphelper/types.hxx>
#endif
#ifndef _COM_SUN_STAR_SDBC_COLUMNVALUE_HPP_
#include <com/sun/star/sdbc/ColumnValue.hpp>
#endif

using namespace connectivity;
using namespace comphelper;
using namespace ::dbtools;
using namespace connectivity::file;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::beans;
using namespace com::sun::star::sdbc;
using namespace com::sun::star::sdbcx;
using namespace com::sun::star::container;
using namespace com::sun::star::util;

IMPLEMENT_SERVICE_INFO(OPreparedStatement,"com.sun.star.sdbc.driver.file.PreparedStatement","com.sun.star.sdbc.PreparedStatement");

OPreparedStatement::OPreparedStatement( OConnection* _pConnection)
    : OStatement_BASE2( _pConnection )
    ,m_pResultSet(NULL)
{
}
// -------------------------------------------------------------------------
void OPreparedStatement::disposing()
{
    ::osl::MutexGuard aGuard(m_aMutex);

    if(m_pResultSet)
        m_pResultSet->release();
    clearMyResultSet();

    OStatement_BASE2::disposing();

    m_xMetaData = NULL;
    if(m_aParameterRow.isValid())
    {
        m_aParameterRow->clear();
        m_aParameterRow = NULL;
    }

    m_xParamColumns = NULL;
}
// -------------------------------------------------------------------------
void OPreparedStatement::construct(const ::rtl::OUString& sql)  throw(SQLException, RuntimeException)
{
    OStatement_Base::construct(sql);

    m_aParameterRow = new OValueVector();
    m_aParameterRow->push_back(sal_Int32(0));
    m_xParamColumns = new OSQLColumns();

    Reference<XIndexAccess> xNames(m_xColNames,UNO_QUERY);

    // describe all parameters need for the resultset
    describeParameter();

    OResultSet::setBoundedColumns(m_aEvaluateRow,m_xParamColumns,xNames,sal_False,m_xDBMetaData,m_aColMapping);

    m_pResultSet = createResultSet();
    m_pResultSet->acquire();
    m_xResultSet = Reference<XResultSet>(m_pResultSet);
    initializeResultSet(m_pResultSet);
}
// -------------------------------------------------------------------------

Any SAL_CALL OPreparedStatement::queryInterface( const Type & rType ) throw(RuntimeException)
{
    Any aRet = OStatement_BASE2::queryInterface(rType);
    return aRet.hasValue() ? aRet : ::cppu::queryInterface( rType,
                                        static_cast< XPreparedStatement*>(this),
                                        static_cast< XParameters*>(this),
                                        static_cast< XResultSetMetaDataSupplier*>(this));
}
// -------------------------------------------------------------------------
::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL OPreparedStatement::getTypes(  ) throw(::com::sun::star::uno::RuntimeException)
{
        ::cppu::OTypeCollection aTypes( ::getCppuType( (const ::com::sun::star::uno::Reference< XPreparedStatement > *)0 ),
                                        ::getCppuType( (const ::com::sun::star::uno::Reference< XParameters > *)0 ),
                                        ::getCppuType( (const ::com::sun::star::uno::Reference< XResultSetMetaDataSupplier > *)0 ));

    return ::comphelper::concatSequences(aTypes.getTypes(),OStatement_BASE2::getTypes());
}
// -------------------------------------------------------------------------

Reference< XResultSetMetaData > SAL_CALL OPreparedStatement::getMetaData(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);


    if(!m_xMetaData.is())
        m_xMetaData = new OResultSetMetaData(m_aSQLIterator.getSelectColumns(),m_aSQLIterator.getTables().begin()->first,m_pTable);
    return m_xMetaData;
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::close(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);


    clearMyResultSet();
}
// -------------------------------------------------------------------------

sal_Bool SAL_CALL OPreparedStatement::execute(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);

    initResultSet();

    return m_aSQLIterator.getStatementType() == SQL_STATEMENT_SELECT || m_aSQLIterator.getStatementType() == SQL_STATEMENT_SELECT_COUNT;
}
// -------------------------------------------------------------------------

sal_Int32 SAL_CALL OPreparedStatement::executeUpdate(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);

    initResultSet();

    return m_pResultSet ? m_pResultSet->getRowCountResult() : sal_Int32(0);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setString( sal_Int32 parameterIndex, const ::rtl::OUString& x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}
// -------------------------------------------------------------------------

Reference< XConnection > SAL_CALL OPreparedStatement::getConnection(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);

    return (Reference< XConnection >)m_pConnection;
}
// -------------------------------------------------------------------------

Reference< XResultSet > SAL_CALL OPreparedStatement::executeQuery(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);

    return initResultSet();
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setBoolean( sal_Int32 parameterIndex, sal_Bool x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}
// -------------------------------------------------------------------------
void SAL_CALL OPreparedStatement::setByte( sal_Int32 parameterIndex, sal_Int8 x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setDate( sal_Int32 parameterIndex, const Date& aData ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,DBTypeConversion::toDouble(aData));
}
// -------------------------------------------------------------------------
void SAL_CALL OPreparedStatement::setTime( sal_Int32 parameterIndex, const Time& aVal ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,DBTypeConversion::toDouble(aVal));
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setTimestamp( sal_Int32 parameterIndex, const DateTime& aVal ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,DBTypeConversion::toDouble(aVal));
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setDouble( sal_Int32 parameterIndex, double x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}

// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setFloat( sal_Int32 parameterIndex, float x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setInt( sal_Int32 parameterIndex, sal_Int32 x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setLong( sal_Int32 parameterIndex, sal_Int64 aVal ) throw(SQLException, RuntimeException)
{
    throwInvalidIndexException(*this);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setNull( sal_Int32 parameterIndex, sal_Int32 sqlType ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkAndResizeParameters(parameterIndex);

    if(m_aAssignValues.isValid())
        (*m_aAssignValues)[m_aParameterIndexes[parameterIndex]].setNull();
    else
        (*m_aParameterRow)[parameterIndex].setNull();
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setClob( sal_Int32 parameterIndex, const Reference< XClob >& x ) throw(SQLException, RuntimeException)
{
    throwInvalidIndexException(*this);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setBlob( sal_Int32 parameterIndex, const Reference< XBlob >& x ) throw(SQLException, RuntimeException)
{
    throwInvalidIndexException(*this);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setArray( sal_Int32 parameterIndex, const Reference< XArray >& x ) throw(SQLException, RuntimeException)
{
    throwInvalidIndexException(*this);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setRef( sal_Int32 parameterIndex, const Reference< XRef >& x ) throw(SQLException, RuntimeException)
{
    throwInvalidIndexException(*this);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setObjectWithInfo( sal_Int32 parameterIndex, const Any& x, sal_Int32 sqlType, sal_Int32 scale ) throw(SQLException, RuntimeException)
{
    ::dbtools::setObjectWithInfo(this,parameterIndex,x,sqlType,scale);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setObjectNull( sal_Int32 parameterIndex, sal_Int32 sqlType, const ::rtl::OUString& typeName ) throw(SQLException, RuntimeException)
{
    setNull(parameterIndex,sqlType);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setObject( sal_Int32 parameterIndex, const Any& x ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);

    throwInvalidIndexException(*this);
    //  setObject (parameterIndex, x, sqlType, 0);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setShort( sal_Int32 parameterIndex, sal_Int16 x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setBytes( sal_Int32 parameterIndex, const Sequence< sal_Int8 >& x ) throw(SQLException, RuntimeException)
{
    setParameter(parameterIndex,x);
}
// -------------------------------------------------------------------------


void SAL_CALL OPreparedStatement::setCharacterStream( sal_Int32 parameterIndex, const Reference< ::com::sun::star::io::XInputStream >& x, sal_Int32 length ) throw(SQLException, RuntimeException)
{
    setBinaryStream(parameterIndex,x,length );
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::setBinaryStream( sal_Int32 parameterIndex, const Reference< ::com::sun::star::io::XInputStream >& x, sal_Int32 length ) throw(SQLException, RuntimeException)
{
    if(!x.is())
        ::dbtools::throwFunctionSequenceException(*this);

    Sequence<sal_Int8> aSeq;
    x->readSomeBytes(aSeq,length);
    setParameter(parameterIndex,aSeq);
}
// -------------------------------------------------------------------------

void SAL_CALL OPreparedStatement::clearParameters(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(OStatement_BASE::rBHelper.bDisposed);

    m_aParameterRow->clear();
    m_aParameterRow->push_back(sal_Int32(0));
}
// -------------------------------------------------------------------------
OResultSet* OPreparedStatement::createResultSet()
{
    return new OResultSet(this,m_aSQLIterator);
}
// -----------------------------------------------------------------------------
Reference<XResultSet> OPreparedStatement::initResultSet()
{
    m_pResultSet->clear();
    Reference<XResultSet> xRs(m_pResultSet);

//  UINT16 nCount = m_aAssignValues.isValid() ? m_aAssignValues->size() : 1; // 1 ist wichtig f<>r die Kriterien
//  for (UINT16 j = 1; j < nCount; ++j)
//  {
//      UINT32 nParameter = (*m_aAssignValues).getParameterIndex(j);
//      if (nParameter != SQL_NO_PARAMETER)
//          (*m_aAssignValues)[j] = (*m_aParameterRow)[(UINT16)nParameter];
//  }

    m_pResultSet->OpenImpl();

    return xRs;
}
// -----------------------------------------------------------------------------
void SAL_CALL OPreparedStatement::acquire() throw()
{
    OStatement_BASE2::acquire();
}
// -----------------------------------------------------------------------------
void SAL_CALL OPreparedStatement::release() throw()
{
    OStatement_BASE2::release();
}
// -----------------------------------------------------------------------------
void OPreparedStatement::checkAndResizeParameters(sal_Int32 parameterIndex)
{
    ::connectivity::checkDisposed(OStatement_BASE::rBHelper.bDisposed);
    if(m_aAssignValues.isValid() && (parameterIndex < 1 || parameterIndex >= m_aParameterIndexes.size()))
        throwInvalidIndexException(*this);
    else if ((sal_Int32)(*m_aParameterRow).size() <= parameterIndex)
        (*m_aParameterRow).resize(parameterIndex+1);
}
// -----------------------------------------------------------------------------
void OPreparedStatement::setParameter(sal_Int32 parameterIndex, const ORowSetValue& x)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkAndResizeParameters(parameterIndex);

    if(m_aAssignValues.isValid())
        (*m_aAssignValues)[m_aParameterIndexes[parameterIndex]] = x;
    else
        (*m_aParameterRow)[parameterIndex] = x;
}
// -----------------------------------------------------------------------------
UINT32 OPreparedStatement::AddParameter(OSQLParseNode * pParameter, const Reference<XPropertySet>& _xCol)
{

    // Nr. des neu hinzuzufuegenden Parameters:
    UINT32 nParameter = m_xParamColumns->size()+1;

    OSL_ENSURE(SQL_ISRULE(pParameter,parameter),"OResultSet::AddParameter: Argument ist kein Parameter");
    OSL_ENSURE(pParameter->count() > 0,"OResultSet: Fehler im Parse Tree");
    OSQLParseNode * pMark = pParameter->getChild(0);

    ::rtl::OUString sParameterName;
//  if (SQL_ISPUNCTUATION(pMark,"?"))
//      aParameterName = '?';
//  else if (SQL_ISPUNCTUATION(pMark,":"))
//      aParameterName = pParameter->getChild(1)->getTokenValue();
//  else if (SQL_ISPUNCTUATION(pMark,"["))
//      aParameterName = pParameter->getChild(1)->getTokenValue();
//  else
//  {
//      OSL_ASSERT("OResultSet: Fehler im Parse Tree");
//  }

    // Parameter-Column aufsetzen:
    sal_Int32 eType = DataType::VARCHAR;
    UINT32 nPrecision = 255;
    sal_Int32 nScale = 0;
    sal_Int32 nNullable = ColumnValue::NULLABLE;

    if (_xCol.is())
    {
        // Typ, Precision, Scale ... der angegebenen Column verwenden,
        // denn dieser Column wird der Wert zugewiesen bzw. mit dieser
        // Column wird der Wert verglichen.
        eType = getINT32(_xCol->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_TYPE)));
        nPrecision = getINT32(_xCol->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_PRECISION)));
        nScale = getINT32(_xCol->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_SCALE)));
        nNullable = getINT32(_xCol->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_ISNULLABLE)));
        _xCol->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_NAME)) >>= sParameterName;
    }

    Reference<XPropertySet> xParaColumn = new connectivity::sdbcx::OColumn(sParameterName
                                                    ,::rtl::OUString()
                                                    ,::rtl::OUString()
                                                    ,nNullable
                                                    ,nPrecision
                                                    ,nScale
                                                    ,eType
                                                    ,sal_False
                                                    ,sal_False
                                                    ,sal_False
                                                    ,m_aSQLIterator.isCaseSensitive());
    m_xParamColumns->push_back(xParaColumn);
    return nParameter;
}
// -----------------------------------------------------------------------------
void OPreparedStatement::describeColumn(OSQLParseNode* _pParameter,OSQLParseNode* _pNode,const OSQLTable& _xTable)
{
    Reference<XPropertySet> xProp;
    if(SQL_ISRULE(_pNode,column_ref))
    {
        ::rtl::OUString sColumnName,sTableRange;
        m_aSQLIterator.getColumnRange(_pNode,sColumnName,sTableRange);
        if(sColumnName.getLength())
        {
            Reference<XNameAccess> xNameAccess = _xTable->getColumns();
            if(xNameAccess->hasByName(sColumnName))
                xNameAccess->getByName(sColumnName) >>= xProp;
            AddParameter(_pParameter,xProp);
        }
    }
    //  else
        //  AddParameter(_pParameter,xProp);
}
// -------------------------------------------------------------------------
void OPreparedStatement::describeParameter()
{
    ::std::vector< OSQLParseNode*> aParseNodes;
    scanParameter(m_pParseTree,aParseNodes);
    if(aParseNodes.size())
    {
        m_xParamColumns = new OSQLColumns();
        const OSQLTables& xTabs = m_aSQLIterator.getTables();
        if(xTabs.size())
        {
            OSQLTable xTable = xTabs.begin()->second;
            ::std::vector< OSQLParseNode*>::const_iterator aIter = aParseNodes.begin();
            for (;aIter != aParseNodes.end();++aIter )
            {
                describeColumn(*aIter,(*aIter)->getParent()->getChild(0),xTable);
            }
        }
    }
}
// -----------------------------------------------------------------------------
void OPreparedStatement::initializeResultSet(OResultSet* _pResult)
{
    OStatement_Base::initializeResultSet(_pResult);

    m_pResultSet->setParameterColumns(m_xParamColumns);
    m_pResultSet->setParameterRow(m_aParameterRow);

    // Parameter substituieren (AssignValues und Kriterien):
    if (!m_xParamColumns->empty())
    {
        // Zun<75>chst AssignValues
        USHORT nParaCount=0; // gibt die aktuelle Anzahl der bisher gesetzen Parameter an

        // Nach zu substituierenden Parametern suchen:
        UINT16 nCount = m_aAssignValues.isValid() ? m_aAssignValues->size() : 1; // 1 ist wichtig f<>r die Kriterien
        for (UINT16 j = 1; j < nCount; j++)
        {
            UINT32 nParameter = (*m_aAssignValues).getParameterIndex(j);
            if (nParameter == SQL_NO_PARAMETER)
                continue;   // dieser AssignValue ist kein Parameter

            ++nParaCount; // ab hier ist der Parameter gueltig
            // Parameter ersetzen. Wenn Parameter nicht verfuegbar,
            //  Value auf NULL setzen.
            //  (*m_aAssignValues)[j] = (*m_aParameterRow)[(UINT16)nParameter];
        }

        if (m_aParameterRow.isValid() &&  nParaCount < m_aParameterRow->size())
        {
            m_pSQLAnalyzer->bindParameterRow(m_aParameterRow);
        }
    }

//  m_pEvaluationKeySet = m_pSQLAnalyzer->bindResultRow(m_aEvaluateRow);    // Werte im Code des Compilers setzen
//  m_pResultSet->setEvaluationKeySet(m_pEvaluationKeySet);
}
// -----------------------------------------------------------------------------
void OPreparedStatement::parseParamterElem(const String& _sColumnName,OSQLParseNode* pRow_Value_Constructor_Elem)
{
    Reference<XPropertySet> xCol;
    m_xColNames->getByName(_sColumnName) >>= xCol;
    sal_Int32 nParameter = -1;
    if(m_xParamColumns.isValid())
    {
        OSQLColumns::const_iterator aIter = find(m_xParamColumns->begin(),m_xParamColumns->end(),_sColumnName,::comphelper::UStringMixEqual(m_pTable->isCaseSensitive()));
        if(aIter != m_xParamColumns->end())
            nParameter = m_xParamColumns->size() - (m_xParamColumns->end() - aIter) + 1;// +1 because the rows start at 1
    }
    if(nParameter == -1)
        nParameter = AddParameter(pRow_Value_Constructor_Elem,xCol);
    // Nr. des Parameters in der Variablen merken:
    SetAssignValue(_sColumnName, String(), TRUE, nParameter);
}
// -----------------------------------------------------------------------------