/*************************************************************************
 *
 *  $RCSfile: querycomposer.cxx,v $
 *
 *  $Revision: 1.1.1.1 $
 *
 *  last change: $Author: hr $ $Date: 2000-09-19 00:15:39 $
 *
 *  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_COMMONTOOLS_HXX_
#include "querycomposer.hxx"
#endif
#ifndef _COM_SUN_STAR_LANG_DISPOSEDEXCEPTION_HPP_
#include <com/sun/star/lang/DisposedException.hpp>
#endif
#ifndef _COM_SUN_STAR_UTIL_XNUMBERFORMATTER_HPP_
#include <com/sun/star/util/XNumberFormatter.hpp>
#endif
#ifndef _COM_SUN_STAR_SDBC_COLUMNSEARCH_HPP_
#include <com/sun/star/sdbc/ColumnSearch.hpp>
#endif
#ifndef _COM_SUN_STAR_SDBC_DATATYPE_HPP_
#include <com/sun/star/sdbc/DataType.hpp>
#endif
#ifndef _COM_SUN_STAR_REGISTRY_XSIMPLEREGISTRY_HPP_
#include <com/sun/star/registry/XSimpleRegistry.hpp>
#endif
#ifndef _COM_SUN_STAR_REGISTRY_XREGISTRYKEY_HPP_
#include <com/sun/star/registry/XRegistryKey.hpp>
#endif
#ifndef _UTL_SEQUENCE_HXX_
#include <unotools/sequence.hxx>
#endif
#ifndef _UNOTOOLS_PROCESSFACTORY_HXX_
#include <unotools/processfactory.hxx>
#endif
#ifndef _DBASHARED_STRINGCONSTANTS_HRC_
#include "stringconstants.hrc"
#endif
#ifndef _CPPUHELPER_TYPEPROVIDER_HXX_
#include <cppuhelper/typeprovider.hxx>
#endif

using namespace dbaccess;
using namespace connectivity;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::sdbcx;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;
using namespace ::cppu;
using namespace ::osl;
using namespace ::com::sun::star::registry;

#define STR_SELECT      String::CreateFromAscii("SELECT ")
#define STR_FROM        String::CreateFromAscii(" FROM ")
#define STR_WHERE       String::CreateFromAscii(" WHERE ")
#define STR_ORDER_BY    String::CreateFromAscii(" ORDER BY ")
#define STR_AND         String::CreateFromAscii(" AND ")
#define STR_LIKE        String::CreateFromAscii(" LIKE ")
#define STR_EQUAL       String::CreateFromAscii(" = ")
#define L_BRACKET       '('
#define R_BRACKET       ')'
#define COMMA           ','

DBG_NAME(OQueryComposer)
// -------------------------------------------------------------------------
OQueryComposer::OQueryComposer(const Reference< XNameAccess>& _xTableSupplier,
                               const Reference< XConnection>& _xConnection,
                               const Reference< XMultiServiceFactory >& _xServiceFactory)
 : OSubComponent(m_aMutex,_xConnection)
 , m_xConnection(_xConnection)
 , m_pSqlParseNode(NULL)
 , m_aSqlIterator(_xTableSupplier,_xConnection->getMetaData(),NULL)
 , m_xTableSupplier(_xTableSupplier)
 , m_xServiceFactory(_xServiceFactory)
{
    DBG_CTOR(OQueryComposer,NULL);
    OSL_ENSHURE(_xServiceFactory.is()," ServiceFactory cant be null!");
    OSL_ENSHURE(_xConnection.is()," Connection cant be null!");
    OSL_ENSHURE(_xTableSupplier.is(),"TableSupplier cant be null!");

    try
    {
        Reference< XSimpleRegistry > xIni(m_xServiceFactory->createInstance(::rtl::OUString::createFromAscii("com.sun.star.config.SpecialConfigManager")), UNO_QUERY);

        if ( xIni.is() )
        {
            sal_Int32 nValue;
            {
                Reference< XRegistryKey > xRootKey  = xIni->getRootKey () ;
                Reference< XRegistryKey > xEntryKey = xRootKey->openKey(::rtl::OUString::createFromAscii("User/Language"));
                nValue = xEntryKey->getStringValue().toInt32();
            }

            LanguageType eLanguage = (LanguageType)((sal_uInt16)nValue);
            m_aInternational = International( eLanguage, eLanguage );
        }
    }
    catch(...) // we dont want to fail here
    {
    }
}
// -------------------------------------------------------------------------
OQueryComposer::~OQueryComposer()
{
    DBG_DTOR(OQueryComposer,NULL);
}
// -------------------------------------------------------------------------
// OComponentHelper
void SAL_CALL OQueryComposer::disposing(void)
{
    OSubComponent::disposing();

    MutexGuard aGuard(m_aMutex);

    delete m_pSqlParseNode;
    m_pSqlParseNode     = NULL;
    m_xTableSupplier    = NULL;
    m_xConnection       = NULL;
    m_xColumns          = NULL;
    m_xServiceFactory   = NULL;
}
// -------------------------------------------------------------------------
// ::com::sun::star::lang::XTypeProvider
Sequence< Type > SAL_CALL OQueryComposer::getTypes() throw (RuntimeException)
{
    return ::utl::concatSequences(OSubComponent::getTypes(),OQueryComposer_BASE::getTypes());
}
// -------------------------------------------------------------------------
Sequence< sal_Int8 > SAL_CALL OQueryComposer::getImplementationId() throw (RuntimeException)
{
    static OImplementationId * pId = 0;
    if (! pId)
    {
        MutexGuard aGuard( Mutex::getGlobalMutex() );
        if (! pId)
        {
            static OImplementationId aId;
            pId = &aId;
        }
    }
    return pId->getImplementationId();
}
// -------------------------------------------------------------------------
// com::sun::star::lang::XUnoTunnel
sal_Int64 SAL_CALL OQueryComposer::getSomething( const Sequence< sal_Int8 >& rId ) throw(RuntimeException)
{
    if (rId.getLength() == 16 && 0 == rtl_compareMemory(getImplementationId().getConstArray(),  rId.getConstArray(), 16 ) )
        return (sal_Int64)this;

    return 0;
}
// -------------------------------------------------------------------------
Any SAL_CALL OQueryComposer::queryInterface( const Type & rType ) throw(RuntimeException)
{
    Any aRet = OSubComponent::queryInterface(rType);
    if(!aRet.hasValue())
        aRet = OQueryComposer_BASE::queryInterface(rType);
    return aRet;
}
// -------------------------------------------------------------------------
// XServiceInfo
//------------------------------------------------------------------------------
rtl::OUString OQueryComposer::getImplementationName(  ) throw(RuntimeException)
{
    return rtl::OUString::createFromAscii("com.sun.star.sdb.dbaccess.OQueryComposer");
}
//------------------------------------------------------------------------------
sal_Bool OQueryComposer::supportsService( const ::rtl::OUString& _rServiceName ) throw (RuntimeException)
{
    return ::utl::findValue(getSupportedServiceNames(), _rServiceName, sal_True).getLength() != 0;
}
//------------------------------------------------------------------------------
Sequence< ::rtl::OUString > OQueryComposer::getSupportedServiceNames(  ) throw (RuntimeException)
{
    Sequence< rtl::OUString > aSNS( 1 );
    aSNS[0] = SERVICE_SDB_SQLQUERYCOMPOSER;
    return aSNS;
}
// -------------------------------------------------------------------------
// XSQLQueryComposer
::rtl::OUString SAL_CALL OQueryComposer::getQuery(  ) throw(RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    return m_aQuery;
}
// -------------------------------------------------------------------------
void SAL_CALL OQueryComposer::setQuery( const ::rtl::OUString& command ) throw(SQLException, RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    ::osl::MutexGuard aGuard( m_aMutex );

    m_aQuery = command;
    delete m_pSqlParseNode;
    String aErrorMsg;
    m_pSqlParseNode = m_aSqlParser.parseTree(aErrorMsg,m_aQuery);
    if(!m_pSqlParseNode)
        throw SQLException();

    m_aSqlIterator.setParseTree(m_pSqlParseNode);
    m_aSqlIterator.traverseAll();
    if( m_aSqlIterator.getStatementType() != SQL_STATEMENT_SELECT && m_aSqlIterator.getStatementType() != SQL_STATEMENT_SELECT_COUNT)
        throw SQLException();

    m_aWorkSql = STR_SELECT;
    m_pSqlParseNode->getChild(1)->parseNodeToStr(m_aWorkSql,m_xConnection->getMetaData());
    m_pSqlParseNode->getChild(2)->parseNodeToStr(m_aWorkSql,m_xConnection->getMetaData());
    m_aWorkSql += STR_FROM;
    m_pSqlParseNode->getChild(3)->getChild(0)->getChild(1)->parseNodeToStr(m_aWorkSql,m_xConnection->getMetaData());

    m_aFilter = m_aOrgFilter = m_aOrgOrder = m_aOrder = ::rtl::OUString();

    const OSQLParseNode* pWhereNode = m_aSqlIterator.getWhereTree();
    if(pWhereNode)
        pWhereNode->getChild(1)->parseNodeToStr(m_aOrgFilter,m_xConnection->getMetaData());

    const OSQLParseNode* pOrderNode = m_aSqlIterator.getOrderTree();
    if(pOrderNode) // parse without "ORDER BY"
        pOrderNode->getChild(2)->parseNodeToStr(m_aOrgOrder,m_xConnection->getMetaData());

    m_xColumns = m_aSqlIterator.getSelectAsNameAccess(*this,m_aMutex);
}
// -------------------------------------------------------------------------
::rtl::OUString SAL_CALL OQueryComposer::getComposedQuery(  ) throw(RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    MutexGuard aGuard(m_aMutex);

    if (m_pSqlParseNode)
    {
        String aResult;
        m_pSqlParseNode->parseNodeToStr(aResult,m_xConnection->getMetaData());
        return aResult;
    }
    else
        return getQuery();
}
// -------------------------------------------------------------------------
::rtl::OUString SAL_CALL OQueryComposer::getFilter(  ) throw(RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    return m_aFilter;
}
// -------------------------------------------------------------------------
Sequence< Sequence< PropertyValue > > SAL_CALL OQueryComposer::getStructuredFilter(  ) throw(RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    MutexGuard aGuard(m_aMutex);

    Sequence< Sequence< PropertyValue > > aFilterSeq;
    if (m_aFilter.Len() != 0)
    {
        String aSql(m_aWorkSql);
        // build a temporary parse node
        OSQLParseNode* pTempNode = m_pSqlParseNode;

        aSql += STR_WHERE;
        aSql += m_aFilter;
        //  THIS->resetIterator(aSql);
        String aErrorMsg;
        m_pSqlParseNode = m_aSqlParser.parseTree(aErrorMsg,aSql);
        m_aSqlIterator.setParseTree(m_pSqlParseNode);

        if (m_pSqlParseNode)
        {
            // normalize the filter
            OSQLParseNode* pWhereNode = m_pSqlParseNode->getChild(3)->getChild(1);
            OSQLParseNode* pCondition = pWhereNode->getChild(1);
            OSQLParseNode::negateSearchCondition(pCondition);
            pCondition = pWhereNode->getChild(1);
            OSQLParseNode::disjunctiveNormalForm(pCondition);
            pCondition = pWhereNode->getChild(1);
            OSQLParseNode::absorptions(pCondition);
            pCondition = pWhereNode->getChild(1);
            if (pCondition)
            {
                ::std::vector< ::std::vector < PropertyValue > > aFilters;
                Reference< ::com::sun::star::util::XNumberFormatter >  xFormatter(utl::getProcessServiceFactory()
                                ->createInstance(rtl::OUString::createFromAscii("com.sun.star.util.NumberFormatter")), UNO_QUERY);
                xFormatter->attachNumberFormatsSupplier(m_xNumberFormatsSupplier);

                if (setORCriteria(pCondition, aFilters, xFormatter))
                {
                    aFilterSeq.realloc(aFilters.size());
                    Sequence<PropertyValue>* pFilters = aFilterSeq.getArray();
                    for (::std::vector< ::std::vector < PropertyValue > >::const_iterator i = aFilters.begin();
                         i != aFilters.end();
                         i++)
                    {
                        const ::std::vector < PropertyValue >& rProperties = *i;
                        pFilters->realloc(rProperties.size());
                        PropertyValue* pFilter = pFilters->getArray();
                        for (::std::vector < PropertyValue >::const_iterator j = rProperties.begin();
                             j != rProperties.end();
                             ++j)
                        {
                            *pFilter = *j;
                            pFilter++;
                        }
                        pFilters++;
                    }
                }
            }
            delete m_pSqlParseNode;
        }

        // restore
        m_pSqlParseNode = pTempNode;
        m_aSqlIterator.setParseTree(m_pSqlParseNode);
    }
    return aFilterSeq;
}
// -------------------------------------------------------------------------
::rtl::OUString SAL_CALL OQueryComposer::getOrder(  ) throw(RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    return m_aOrder;
}
// -------------------------------------------------------------------------
void SAL_CALL OQueryComposer::appendFilterByColumn( const Reference< XPropertySet >& column ) throw(SQLException, RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    if(!column.is() || !column->getPropertySetInfo()->hasPropertyByName(PROPERTY_VALUE))
        throw SQLException();

    sal_Int32 nSearchable = 0;
    column->getPropertyValue(PROPERTY_ISSEARCHABLE) >>= nSearchable;
    if(nSearchable == ColumnSearch::NONE)
        throw SQLException();

    ::osl::MutexGuard aGuard( m_aMutex );

    ::rtl::OUString aName;
    column->getPropertyValue(PROPERTY_NAME) >>= aName;

    Any aValue;
    column->getPropertyValue(PROPERTY_VALUE) >>= aValue;


    String aSql = aName;

    sal_Int32 nType = 0;
    column->getPropertyValue(PROPERTY_NAME) >>= nType;
    switch(nType)
    {
        case DataType::VARCHAR:
        case DataType::CHAR:
        case DataType::LONGVARCHAR:
            aSql += STR_LIKE;
            aSql += '\'';
            aSql += toString(aValue).getStr();
            aSql += '\'';
            break;
        case DataType::VARBINARY:
        case DataType::BINARY:
        case DataType::LONGVARBINARY:
            {
                Sequence<sal_Int8> aSeq;
                if(aValue >>= aSeq)
                {
                    if(nSearchable == ColumnSearch::CHAR)
                    {
                        aSql += STR_LIKE;
                        aSql += '\'';
                    }
                    else
                        aSql += STR_EQUAL;
                    aSql.AppendAscii("0x");
                    const sal_Int8* pBegin  = aSeq.getConstArray();
                    const sal_Int8* pEnd    = pBegin + aSeq.getLength();
                    for(;pBegin != pEnd;++pBegin)
                    {
                        aSql += ::rtl::OUString::valueOf((sal_Int32)*pBegin,16).getStr();
                    }
                    if(nSearchable == ColumnSearch::NONE)
                        aSql += '\'';
                }
                else
                    throw SQLException();
            }
            break;
        default:
            {
                ::rtl::OUString aValueStr(toString(aValue));
                aSql += STR_EQUAL;
                aSql += ' ';
                aSql += aValueStr.getStr();
            }
    }

    // filter anhaengen
    // select ohne where und order by aufbauen
    String aSql2(m_aWorkSql);

    if ((m_aFilter.Len() != 0) && (aSql.Len() != 0))
    {
        String sTemp(L_BRACKET);
        sTemp += m_aFilter;
        sTemp += R_BRACKET;
        sTemp += STR_AND;
        m_aFilter = sTemp;
    }
    m_aFilter += aSql;

    // add the filter and the sort order
    aSql2 += getComposedFilter();
    aSql2 += getComposedSort();

    resetIterator(aSql2);
}
// -------------------------------------------------------------------------
void SAL_CALL OQueryComposer::appendOrderByColumn( const Reference< XPropertySet >& column, sal_Bool ascending ) throw(SQLException, RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    if(!column.is() || !column->getPropertySetInfo()->hasPropertyByName(PROPERTY_VALUE))
        throw SQLException();

    ::osl::MutexGuard aGuard( m_aMutex );

    ::rtl::OUString aName;
    column->getPropertyValue(PROPERTY_NAME) >>= aName;
    if(!m_xConnection->getMetaData()->supportsOrderByUnrelated() && !m_xColumns->hasByName(aName))
        throw SQLException();

    // filter anhaengen
    // select ohne where und order by aufbauen
    String aSql(m_aWorkSql);
    String aAppendOrder(aName);

    if ((m_aOrder.Len() != 0) && aAppendOrder.Len())
        m_aOrder += COMMA;
    m_aOrder += aAppendOrder;
    if(!ascending && aAppendOrder.Len())
        m_aOrder.AppendAscii(" DESC ");

    // add the filter and the sort order
    aSql += getComposedFilter();
    aSql += getComposedSort();

    resetIterator(aSql);
}
// -------------------------------------------------------------------------
void SAL_CALL OQueryComposer::setFilter( const ::rtl::OUString& filter ) throw(SQLException, RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    ::osl::MutexGuard aGuard( m_aMutex );
    m_aFilter = filter;
    String aSql(m_aWorkSql);

    // add the filter and the sort order
    aSql += getComposedFilter();
    aSql += getComposedSort();

    resetIterator(aSql);

}
// -------------------------------------------------------------------------
void SAL_CALL OQueryComposer::setOrder( const ::rtl::OUString& order ) throw(SQLException, RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    ::osl::MutexGuard aGuard( m_aMutex );

    m_aOrder = order;

    String aSql(m_aWorkSql);

    // add the filter and the sort order
    aSql += getComposedFilter();
    aSql += getGroupBy();
    aSql += getComposedSort();

    resetIterator(aSql);
}
// -------------------------------------------------------------------------
// XTablesSupplier
Reference< ::com::sun::star::container::XNameAccess > SAL_CALL OQueryComposer::getTables(  ) throw(RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    ::osl::MutexGuard aGuard( m_aMutex );
    return m_aSqlIterator.getTablesAsNameAccess(*this,m_aMutex);
}
// -------------------------------------------------------------------------
// XColumnsSupplier
Reference< ::com::sun::star::container::XNameAccess > SAL_CALL OQueryComposer::getColumns(  ) throw(RuntimeException)
{
    if (OSubComponent::rBHelper.bDisposed)
        throw DisposedException();

    ::osl::MutexGuard aGuard( m_aMutex );
    return m_aSqlIterator.getSelectAsNameAccess(*this,m_aMutex);
}
// -------------------------------------------------------------------------
sal_Bool OQueryComposer::setORCriteria(OSQLParseNode* pCondition,
                                    ::std::vector< ::std::vector < PropertyValue > >& rFilters, const Reference< ::com::sun::star::util::XNumberFormatter > & xFormatter) const
{
    // Runde Klammern um den Ausdruck
    if (pCondition->count() == 3 &&
        SQL_ISPUNCTUATION(pCondition->getChild(0),"(") &&
        SQL_ISPUNCTUATION(pCondition->getChild(2),")"))
    {
        return setORCriteria(pCondition->getChild(1), rFilters, xFormatter);
    }
    // oder Verknuepfung
    // a searchcondition can only look like this: search_condition SQL_TOKEN_OR boolean_term
    else if (SQL_ISRULE(pCondition,search_condition))
    {
        sal_Bool bResult = sal_True;
        for (int i = 0; bResult && i < 3; i+=2)
        {
            // Ist das erste Element wieder eine OR-Verknuepfung?
            // Dann rekursiv absteigen ...
            //if (!i && SQL_ISRULE(pCondition->getChild(i),search_condition))
            if (SQL_ISRULE(pCondition->getChild(i),search_condition))
                bResult = setORCriteria(pCondition->getChild(i), rFilters, xFormatter);
            else
            {
                rFilters.push_back( ::std::vector < PropertyValue >());
                bResult = setANDCriteria(pCondition->getChild(i), rFilters[rFilters.size() - 1], xFormatter);
            }
        }
        return bResult;
    }
    else
    {
        rFilters.push_back(::std::vector < PropertyValue >());
        return setANDCriteria(pCondition, rFilters[rFilters.size() - 1], xFormatter);
    }
}

//--------------------------------------------------------------------------------------------------
sal_Bool OQueryComposer::setANDCriteria(OSQLParseNode * pCondition,
                                  ::std::vector < PropertyValue >& rFilter, const Reference< ::com::sun::star::util::XNumberFormatter > & xFormatter) const
{
    // Runde Klammern
    if (SQL_ISRULE(pCondition,boolean_primary))
    {
        // this should not occur
        DBG_ERROR("Primary condition in And-Criteria");
        return sal_False;
    }
    // Das erste Element ist (wieder) eine AND-Verknuepfung
    else if ( SQL_ISRULE(pCondition,boolean_term) && pCondition->count() == 3 )
    {
        return setANDCriteria(pCondition->getChild(0), rFilter, xFormatter) &&
               setANDCriteria(pCondition->getChild(2), rFilter, xFormatter);
    }
    else if (SQL_ISRULE(pCondition, comparison_predicate))
    {
        return setComparsionPredicate(pCondition,rFilter,xFormatter);
    }
    else if (SQL_ISRULE(pCondition,like_predicate) ||
             SQL_ISRULE(pCondition,test_for_null) ||
             SQL_ISRULE(pCondition,in_predicate) ||
             SQL_ISRULE(pCondition,all_or_any_predicate) ||
             SQL_ISRULE(pCondition,between_predicate))
    {
        if (SQL_ISRULE(pCondition->getChild(0), column_ref))
        {
            PropertyValue aItem;
            String aValue;
            String aColumnName;

            pCondition->parseNodeToPredicateStr(aValue,m_xConnection->getMetaData(), xFormatter, m_aInternational);
            pCondition->getChild(0)->parseNodeToPredicateStr(aColumnName,m_xConnection->getMetaData(), xFormatter, m_aInternational);

            // don't display the column name
            aValue.Erase(0, aColumnName.Len());
            aValue.EraseLeadingChars();

            aItem.Name = UniString(getColumnName(pCondition->getChild(0)));
            rtl::OUString aStrValue = UniString(aValue);
            aItem.Value <<= aStrValue;
            rFilter.push_back(aItem);
        }
        else
            return sal_False;
    }
    else if (SQL_ISRULE(pCondition,existence_test) ||
             SQL_ISRULE(pCondition,unique_test))
    {
        // this couldn't be handled here, too complex
        // as we need a field name
        return sal_False;
    }
    else
        return sal_False;

    return sal_True;
}

//------------------------------------------------------------------------------
sal_Bool OQueryComposer::setComparsionPredicate(OSQLParseNode * pCondition,
                                            ::std::vector < PropertyValue >& rFilter, const Reference< ::com::sun::star::util::XNumberFormatter > & xFormatter) const
{
    DBG_ASSERT(SQL_ISRULE(pCondition, comparison_predicate),"setComparsionPredicate: pCondition ist kein ComparsionPredicate");
    if (SQL_ISRULE(pCondition->getChild(0), column_ref) ||
        SQL_ISRULE(pCondition->getChild(pCondition->count()-1), column_ref))
    {
        PropertyValue aItem;
        String aValue;
        sal_uInt16 nPos;
        if (SQL_ISRULE(pCondition->getChild(0), column_ref))
        {
            nPos = 0;
            sal_Int16 i=1;

            // don't display the equal
            if (pCondition->getChild(i)->getNodeType() == SQL_NODE_EQUAL)
                i++;

            // go forward
            for (;i < pCondition->count();i++)
                pCondition->getChild(i)->parseNodeToPredicateStr(aValue,m_xConnection->getMetaData(), xFormatter, m_aInternational);
        }
        else if (SQL_ISRULE(pCondition->getChild(pCondition->count()-1), column_ref))
        {
            nPos = pCondition->count()-1;

            sal_Int16 i = pCondition->count() - 2;

            switch (pCondition->getChild(i)->getNodeType())
            {
                case SQL_NODE_EQUAL:
                    // don't display the equal
                    i--;
                    break;
                case SQL_NODE_LESS:
                    // take the opposite as we change the order
                    i--;
                    aValue = '>';
                    break;
                case SQL_NODE_LESSEQ:
                    // take the opposite as we change the order
                    i--;
                    aValue.AssignAscii(">=");
                    break;
                case SQL_NODE_GREAT:
                    // take the opposite as we change the order
                    i--;
                    aValue = '<';
                    break;
                case SQL_NODE_GREATEQ:
                    // take the opposite as we change the order
                    i--;
                    aValue.AssignAscii("<=");
                    break;
            }

            // go backward
            for (; i >= 0; i--)
                pCondition->getChild(i)->parseNodeToPredicateStr(aValue,m_xConnection->getMetaData(), xFormatter, m_aInternational);
        }
        else
            return sal_False;

        aItem.Name = UniString(getColumnName(pCondition->getChild(nPos)));
        rtl::OUString aStrValue = UniString(aValue);
        aItem.Value <<= aStrValue;
        rFilter.push_back(aItem);
    }
    else if (SQL_ISRULE(pCondition->getChild(0), set_fct_spec ) ||
             SQL_ISRULE(pCondition->getChild(0), general_set_fct))
    {
        PropertyValue aItem;
        String aValue;
        String aColumnName;
        pCondition->parseNodeToPredicateStr(aValue,m_xConnection->getMetaData(), xFormatter, m_aInternational);
        pCondition->getChild(0)->parseNodeToPredicateStr(aColumnName,m_xConnection->getMetaData(), xFormatter, m_aInternational);

        // don't display the column name
        aValue.Erase(0, aColumnName.Len());
        aValue.EraseLeadingChars();

        aItem.Name = UniString(getColumnName(pCondition->getChild(0)));
        rtl::OUString aStrValue = UniString(aValue);
        aItem.Value <<= aStrValue;
        rFilter.push_back(aItem);
    }
    else // kann sich nur um einen Expr. Ausdruck handeln
    {
        PropertyValue aItem;
        String aName, aValue;

        OSQLParseNode *pLhs = pCondition->getChild(0);
        OSQLParseNode *pRhs = pCondition->getChild(2);

        // Feldnamen
        sal_uInt16 i;
        for (i=0;i< pLhs->count();i++)
             pCondition->getChild(i)->parseNodeToPredicateStr(aName,m_xConnection->getMetaData(), xFormatter, m_aInternational);

        // Kriterium
        aValue = pCondition->getChild(1)->getTokenValue();
        for(i=0;i< pRhs->count();i++)
            pCondition->getChild(i)->parseNodeToPredicateStr(aValue,m_xConnection->getMetaData(), xFormatter, m_aInternational);

        aItem.Name = aName;
        rtl::OUString aStrValue = aValue;
        aItem.Value <<= aStrValue;
        rFilter.push_back(aItem);
    }
    return sal_True;
}
// functions for analysing SQL
//--------------------------------------------------------------------------------------------------
String OQueryComposer::getColumnName(::connectivity::OSQLParseNode* pColumnRef) const
{
    String aTableRange, aColumnName;
    m_aSqlIterator.getColumnRange(pColumnRef, aColumnName, aTableRange );
    return aColumnName;
}
//------------------------------------------------------------------------------
void OQueryComposer::resetIterator(const String& aSql)
{
    String aErrorMsg;
    delete m_pSqlParseNode;
    m_pSqlParseNode = m_aSqlParser.parseTree(aErrorMsg, aSql);
    m_aSqlIterator.setParseTree(m_pSqlParseNode);
}
//-----------------------------------------------------------------------------
String OQueryComposer::getComposedFilter() const
{
    String aResult;
    // compose the query use brackets if necessary
    if ((m_aOrgFilter.Len() != 0) && (m_aFilter.Len() != 0))
        (((((((aResult = STR_WHERE) += L_BRACKET) += m_aOrgFilter) += R_BRACKET) += STR_AND) += L_BRACKET) += m_aFilter) += R_BRACKET;
    else if (m_aOrgFilter.Len() != 0)
        (aResult = STR_WHERE) += m_aOrgFilter;
    else if (m_aFilter.Len() != 0)
        (aResult = STR_WHERE) += m_aFilter;
    return aResult;
}

//-----------------------------------------------------------------------------
String OQueryComposer::getComposedSort() const
{
    String aResult;
    // set the order part
    if ((m_aOrgOrder.Len() != 0) && (m_aOrder.Len() != 0))
        (((aResult = STR_ORDER_BY) += m_aOrgOrder) += COMMA) += m_aOrder;
    else if (m_aOrgOrder.Len() != 0)
        (aResult = STR_ORDER_BY) += m_aOrgOrder;
    else if (m_aOrder.Len() != 0)
        (aResult = STR_ORDER_BY) += m_aOrder;
    return aResult;
}
// -------------------------------------------------------------------------
String OQueryComposer::getGroupBy() const
{
    String aResult;
    const OSQLParseNode* pGroupBy = m_aSqlIterator.getGroupByTree();
    if(pGroupBy)
        pGroupBy->parseNodeToStr(aResult,m_xConnection->getMetaData());

    const OSQLParseNode* pHaving = m_aSqlIterator.getHavingTree();
    if(pHaving)
        pHaving->parseNodeToStr(aResult,m_xConnection->getMetaData());
    return aResult;
}