AOO410/main/extensions/source/bibliography/bibload.cxx

/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_extensions.hxx"


#include <osl/mutex.hxx>
#include <tools/urlobj.hxx>
#include <tools/diagnose_ex.h>
#include <cppuhelper/weak.hxx>
#include <svl/itemprop.hxx>
#include <uno/environment.h>
#include <svl/urihelper.hxx>
#ifndef _TOOLKIT_UNOHLP_HXX
#include <toolkit/helper/vclunohelper.hxx>
#endif
#include <comphelper/processfactory.hxx>
#include <cppuhelper/factory.hxx>	// helper for factories
#include <com/sun/star/sdbc/ResultSetType.hpp>
#include <com/sun/star/sdbc/ResultSetConcurrency.hpp>
#include <com/sun/star/sdb/XColumn.hpp>
#include <com/sun/star/util/XURLTransformer.hpp>
#include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
#include <com/sun/star/sdbc/XRowSet.hpp>
#include <com/sun/star/sdb/CommandType.hpp>
#include <com/sun/star/frame/XFrameLoader.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/beans/PropertyAttribute.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <com/sun/star/text/BibliographyDataField.hpp>
#include <com/sun/star/form/XLoadListener.hpp>
#include <com/sun/star/frame/XLayoutManager.hpp>
#include <toolkit/awt/vclxwindow.hxx>
#include <vcl/window.hxx>
#include <vcl/edit.hxx>
#include <vcl/svapp.hxx>
#include <vcl/group.hxx>
#include <svtools/svmedit.hxx>

#include "bibresid.hxx"
#ifndef BIB_HRC
#include "bib.hrc"
#endif
#include "bibcont.hxx"
#include "bibbeam.hxx"
#include "bibmod.hxx"
#include "bibview.hxx"
#include "framectr.hxx"
#include "datman.hxx"
#include <bibconfig.hxx>
#include <cppuhelper/implbase4.hxx> // helper for implementations

using namespace ::rtl;
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::form;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::frame;

#define C2U(cChar) OUString::createFromAscii(cChar)


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

#define PROPERTY_FRAME						1

class BibliographyLoader : public cppu::WeakImplHelper4
							< XServiceInfo, XNameAccess, XPropertySet, XFrameLoader >
{
	HdlBibModul 									m_pBibMod;
	Reference< XLoadable >							m_xDatMan;
	BibDataManager* 								m_pDatMan;
	Reference< XNameAccess > 						m_xColumns;
	Reference< XResultSet > 						m_xCursor;

private:

	void					loadView(const Reference< XFrame > & aFrame, const rtl::OUString& aURL,
								const Sequence< PropertyValue >& aArgs,
								const Reference< XLoadEventListener > & aListener);

	BibDataManager* 		GetDataManager()const;
	Reference< XNameAccess > 			GetDataColumns() const;
	Reference< XResultSet > 			GetDataCursor() const;
	Reference< sdb::XColumn >				GetIdentifierColumn() const;

public:
							BibliographyLoader();
							~BibliographyLoader();

	// XServiceInfo
	rtl::OUString				SAL_CALL getImplementationName() throw(  );
	sal_Bool					SAL_CALL supportsService(const rtl::OUString& ServiceName) throw(  );
	Sequence< rtl::OUString >	SAL_CALL getSupportedServiceNames(void) throw(	);
	static rtl::OUString				getImplementationName_Static() throw(  )

							{
								//!
								return C2U("com.sun.star.extensions.Bibliography");
								//!
							}

	//XNameAccess
	virtual Any SAL_CALL getByName(const rtl::OUString& aName) throw ( NoSuchElementException, WrappedTargetException, RuntimeException );
	virtual Sequence< rtl::OUString > SAL_CALL getElementNames(void) throw ( RuntimeException );
	virtual sal_Bool SAL_CALL hasByName(const rtl::OUString& aName) throw ( RuntimeException );

	//XElementAccess
	virtual Type  SAL_CALL getElementType(void) throw ( RuntimeException );
	virtual sal_Bool SAL_CALL hasElements(void) throw ( RuntimeException );

	//XPropertySet
	virtual Reference< XPropertySetInfo >  SAL_CALL getPropertySetInfo(void) throw ( RuntimeException );
	virtual void SAL_CALL setPropertyValue(const rtl::OUString& PropertyName, const Any& aValue) throw( UnknownPropertyException, PropertyVetoException, IllegalArgumentException, WrappedTargetException, RuntimeException );
	virtual Any SAL_CALL getPropertyValue(const rtl::OUString& PropertyName) throw ( UnknownPropertyException, WrappedTargetException, RuntimeException );
	virtual void SAL_CALL addPropertyChangeListener(const rtl::OUString& PropertyName, const Reference< XPropertyChangeListener > & aListener) throw( UnknownPropertyException, WrappedTargetException, RuntimeException );
	virtual void SAL_CALL removePropertyChangeListener(const rtl::OUString& PropertyName, const Reference< XPropertyChangeListener > & aListener) throw( UnknownPropertyException, WrappedTargetException, RuntimeException );
	virtual void SAL_CALL addVetoableChangeListener(const rtl::OUString& PropertyName, const Reference< XVetoableChangeListener > & aListener) throw( UnknownPropertyException, WrappedTargetException, RuntimeException );
	virtual void SAL_CALL removeVetoableChangeListener(const rtl::OUString& PropertyName, const Reference< XVetoableChangeListener > & aListener) throw( UnknownPropertyException, WrappedTargetException, RuntimeException );

	static Sequence<rtl::OUString>	SAL_CALL getSupportedServiceNames_Static(void) throw(  );

	friend	Reference< XInterface > 	SAL_CALL BibliographyLoader_CreateInstance( const Reference< XMultiServiceFactory > & rSMgr ) throw( Exception );

	// XLoader
	virtual void			SAL_CALL load(const Reference< XFrame > & aFrame, const rtl::OUString& aURL,
								const Sequence< PropertyValue >& aArgs,
								const Reference< XLoadEventListener > & aListener) throw (::com::sun::star::uno::RuntimeException);
	virtual void			SAL_CALL cancel(void) throw (::com::sun::star::uno::RuntimeException);
};

BibliographyLoader::BibliographyLoader() :
	m_pBibMod(0),
	m_pDatMan(0)
{
}

BibliographyLoader::~BibliographyLoader()
{
	Reference< lang::XComponent >  xComp(m_xCursor, UNO_QUERY);
	if (xComp.is())
		xComp->dispose();
	if(m_pBibMod)
		CloseBibModul(m_pBibMod);
}


Reference< XInterface >  SAL_CALL BibliographyLoader_CreateInstance( const Reference< XMultiServiceFactory >  & /*rSMgr*/ ) throw( Exception )
{
	return *(new BibliographyLoader);
}


// XServiceInfo
rtl::OUString BibliographyLoader::getImplementationName() throw(  )

{
	return getImplementationName_Static();
}

// XServiceInfo
sal_Bool BibliographyLoader::supportsService(const rtl::OUString& ServiceName) throw(  )
{
	Sequence< rtl::OUString > aSNL = getSupportedServiceNames();
	const rtl::OUString * pArray = aSNL.getConstArray();
	for( sal_Int32 i = 0; i < aSNL.getLength(); i++ )
		if( pArray[i] == ServiceName )
			return sal_True;
	return sal_False;
}

// XServiceInfo
Sequence< rtl::OUString > BibliographyLoader::getSupportedServiceNames(void) throw(  )
{
	return getSupportedServiceNames_Static();
}

// ORegistryServiceManager_Static
Sequence< rtl::OUString > BibliographyLoader::getSupportedServiceNames_Static(void) throw(	)
{
	Sequence< rtl::OUString > aSNS( 2 );
	aSNS.getArray()[0] = C2U("com.sun.star.frame.FrameLoader");
	//!
	aSNS.getArray()[1] = C2U("com.sun.star.frame.Bibliography");
	//!
	return aSNS;
}

extern "C"
{
	void SAL_CALL component_getImplementationEnvironment(
		const sal_Char ** ppEnvTypeName, uno_Environment ** /*ppEnv*/ )
	{
		*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
	}

	void * SAL_CALL component_getFactory(
		const sal_Char * pImplName, XMultiServiceFactory * pServiceManager, void * /*pRegistryKey*/ )
	{
		void * pRet = 0;
		if (!BibliographyLoader::getImplementationName_Static().compareToAscii( pImplName ) )
		{
			// create the factory
			Reference< XSingleServiceFactory > xFactory =
				cppu::createSingleFactory(
					pServiceManager,
					BibliographyLoader::getImplementationName_Static(),
					BibliographyLoader_CreateInstance,
					BibliographyLoader::getSupportedServiceNames_Static() );
			// acquire, because we return an interface pointer instead of a reference
			xFactory->acquire();
			pRet = xFactory.get();
		}
		return pRet;
	}

}
// -----------------------------------------------------------------------
void BibliographyLoader::cancel(void) throw (::com::sun::star::uno::RuntimeException)
{
	//!
	//!
}

// -----------------------------------------------------------------------
void BibliographyLoader::load(const Reference< XFrame > & rFrame, const rtl::OUString& rURL,
		const Sequence< PropertyValue >& rArgs,
		const Reference< XLoadEventListener > & rListener) throw (::com::sun::star::uno::RuntimeException)
{
	//!

    vos::OGuard aGuard(Application::GetSolarMutex());
    m_pBibMod = OpenBibModul();

	String aURLStr( rURL );
	String aPartName = aURLStr.GetToken( 1, '/' );
	Reference<XPropertySet> xPrSet(rFrame, UNO_QUERY);
	if(xPrSet.is())
	{
		Any aTitle;
		aTitle <<= OUString(String(BibResId(RID_BIB_STR_FRAME_TITLE)));
		xPrSet->setPropertyValue(C2U("Title"), aTitle);
	}
	if(aPartName.EqualsAscii("View") || aPartName.EqualsAscii("View1"))
	{
		loadView(rFrame, rURL, rArgs, rListener);
	}
}

// -----------------------------------------------------------------------
void BibliographyLoader::loadView(const Reference< XFrame > & rFrame, const rtl::OUString& /*rURL*/,
		const Sequence< PropertyValue >& /*rArgs*/,
		const Reference< XLoadEventListener > & rListener)
{
    vos::OGuard aGuard(Application::GetSolarMutex());
    //!
	if(!m_pBibMod)
		m_pBibMod = OpenBibModul();

/*
	//create the menu
	ResMgr* pResMgr = (*m_pBibMod)->GetResMgr();
	INetURLObject aEntry( URIHelper::SmartRelToAbs(pResMgr->GetFileName()) );
	String aMenuRes( RTL_CONSTASCII_USTRINGPARAM( "private:resource/" ));
	aMenuRes += ( aEntry.GetName() += '/' );
	aMenuRes+=String::CreateFromInt32(RID_MAIN_MENU);

	util::URL aURL;
	aURL.Complete = aMenuRes;

	Reference< XMultiServiceFactory >  xMgr = comphelper::getProcessServiceFactory();
	Reference< util::XURLTransformer >	xTrans ( xMgr->createInstance( C2U("com.sun.star.util.URLTransformer") ), UNO_QUERY );
	if( xTrans.is() )
	{
		// Datei laden
		xTrans->parseStrict( aURL );

		Reference< XDispatchProvider >	xProv( rFrame, UNO_QUERY );
		if ( xProv.is() )
		{
			Reference< XDispatch >	aDisp = xProv->queryDispatch( aURL, C2U("_menubar"), 12 );
			if ( aDisp.is() )
				aDisp->dispatch( aURL, Sequence<PropertyValue>() );
		}
	}
*/
	m_pDatMan = (*m_pBibMod)->createDataManager();
	m_xDatMan = m_pDatMan;
	BibDBDescriptor aBibDesc = BibModul::GetConfig()->GetBibliographyURL();

	if(!aBibDesc.sDataSource.getLength())
	{
		DBChangeDialogConfig_Impl aConfig;
		const Sequence<OUString> aSources = aConfig.GetDataSourceNames();
		if(aSources.getLength())
			aBibDesc.sDataSource = aSources.getConstArray()[0];
	}

	Reference< XForm > xForm = m_pDatMan->createDatabaseForm( aBibDesc );

    Reference< awt::XWindow >  aWindow = rFrame->getContainerWindow();
    VCLXWindow* pParentComponent = VCLXWindow::GetImplementation(aWindow);

    Window* pParent = VCLUnoHelper::GetWindow( aWindow );

    BibBookContainer *pMyWindow = new BibBookContainer( pParent, m_pDatMan );
    pMyWindow->Show();

    ::bib::BibView* pView = new ::bib::BibView( pMyWindow, m_pDatMan, WB_VSCROLL | WB_HSCROLL | WB_3DLOOK );
    pView->Show();
    m_pDatMan->SetView( pView );

    ::bib::BibBeamer* pBeamer = new ::bib::BibBeamer( pMyWindow, m_pDatMan );
    pBeamer->Show();
    pMyWindow->createTopFrame(pBeamer);

    pMyWindow->createBottomFrame(pView);

    Reference< awt::XWindow >  xWin ( pMyWindow->GetComponentInterface(), UNO_QUERY );

    Reference< XController >  xCtrRef( new BibFrameController_Impl( xWin, m_pDatMan ) );

    xCtrRef->attachFrame(rFrame);
    rFrame->setComponent( xWin, xCtrRef);
    pBeamer->SetXController(xCtrRef);
    //!

    // not earlier because SetFocus() is triggered in setVisible()
    pParentComponent->setVisible(sal_True);

    m_xDatMan->load();
    // #100312# ----------
    m_pDatMan->RegisterInterceptor(pBeamer);

    if ( rListener.is() )
        rListener->loadFinished( this );

    // attach menu bar
    Reference< XPropertySet > xPropSet( rFrame, UNO_QUERY );
    Reference< ::com::sun::star::frame::XLayoutManager > xLayoutManager;
    if ( xPropSet.is() )
    {
        try
        {
            Any a = xPropSet->getPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM( "LayoutManager" )));
            a >>= xLayoutManager;
        }
        catch ( uno::Exception& )
        {
        }
    }

    if ( xLayoutManager.is() )
        xLayoutManager->createElement( OUString( RTL_CONSTASCII_USTRINGPARAM( "private:resource/menubar/menubar" )));
}
/* -----------------06.12.99 14:37-------------------

 --------------------------------------------------*/
BibDataManager* BibliographyLoader::GetDataManager()const
{
	if(!m_pDatMan)
	{
		if(!m_pBibMod)
			const_cast< BibliographyLoader* >( this )->m_pBibMod = OpenBibModul();
		const_cast< BibliographyLoader* >( this )->m_pDatMan = (*m_pBibMod)->createDataManager();
		const_cast< BibliographyLoader* >( this )->m_xDatMan = m_pDatMan;
	}
	return m_pDatMan;
}
/* -----------------06.12.99 14:39-------------------

 --------------------------------------------------*/
Reference< XNameAccess >  BibliographyLoader::GetDataColumns() const
{
	if (!m_xColumns.is())
	{
		Reference< XMultiServiceFactory >  xMgr = comphelper::getProcessServiceFactory();
		Reference< XRowSet >  xRowSet(xMgr->createInstance(C2U("com.sun.star.sdb.RowSet")), UNO_QUERY);
		Reference< XPropertySet >  xResultSetProps(xRowSet, UNO_QUERY);
		DBG_ASSERT(xResultSetProps.is() , "BibliographyLoader::GetDataCursor : invalid row set (no XResultSet or no XPropertySet) !");

		BibDBDescriptor aBibDesc = BibModul::GetConfig()->GetBibliographyURL();

		Any aBibUrlAny; aBibUrlAny <<= aBibDesc.sDataSource;
		xResultSetProps->setPropertyValue(C2U("DataSourceName"), aBibUrlAny);
		Any aCommandType; aCommandType <<= aBibDesc.nCommandType;
		xResultSetProps->setPropertyValue(C2U("CommandType"), aCommandType);
		Any aTableName; aTableName <<= aBibDesc.sTableOrQuery;
		xResultSetProps->setPropertyValue(C2U("Command"), aTableName);
		Any aResultSetType; aResultSetType <<= (sal_Int32)(ResultSetType::SCROLL_INSENSITIVE);
		xResultSetProps->setPropertyValue(C2U("ResultSetType"), aResultSetType);
		Any aResultSetCurrency; aResultSetCurrency <<= (sal_Int32)(ResultSetConcurrency::UPDATABLE);
		xResultSetProps->setPropertyValue(C2U("ResultSetConcurrency"), aResultSetCurrency);

		sal_Bool bSuccess = sal_False;
		try
		{
			xRowSet->execute();
			bSuccess = sal_True;
		}
		catch(const SQLException&)
		{
            DBG_UNHANDLED_EXCEPTION();
		}
		catch(const Exception& )
		{
            DBG_UNHANDLED_EXCEPTION();
			bSuccess = sal_False;
		}

		if (!bSuccess)
		{
			Reference< XComponent >  xSetComp(xRowSet, UNO_QUERY);
			if (xSetComp.is())
				xSetComp->dispose();
			xRowSet = NULL;
		}
		else
			((BibliographyLoader*)this)->m_xCursor = xRowSet.get();

		Reference< sdbcx::XColumnsSupplier >  xSupplyCols(m_xCursor, UNO_QUERY);
		if (xSupplyCols.is())
			((BibliographyLoader*)this)->m_xColumns = xSupplyCols->getColumns();
	}

	return m_xColumns;
}
/* -----------------17.12.99 12:29-------------------

 --------------------------------------------------*/
Reference< sdb::XColumn >  BibliographyLoader::GetIdentifierColumn() const
{
	BibDataManager* pDatMan = GetDataManager();
	Reference< XNameAccess >  xColumns = GetDataColumns();
	rtl::OUString sIdentifierColumnName = pDatMan->GetIdentifierMapping();

	Reference< sdb::XColumn >  xReturn;
	if (xColumns.is() && xColumns->hasByName(sIdentifierColumnName))
	{
		xReturn = Reference< XColumn > (*(Reference< XInterface > *)
				xColumns->getByName(sIdentifierColumnName).getValue(), UNO_QUERY);
	}
	return xReturn;
}

/* -----------------06.12.99 15:05-------------------

 --------------------------------------------------*/
Reference< XResultSet >  BibliographyLoader::GetDataCursor() const
{
	if (!m_xCursor.is())
		GetDataColumns();
	if (m_xCursor.is())
		m_xCursor->first();
	return m_xCursor;
}

/*-- 17.11.99 12:51:38---------------------------------------------------

  -----------------------------------------------------------------------*/
rtl::OUString lcl_AddProperty(Reference< XNameAccess >  xColumns,
		const Mapping* pMapping, const String& rColumnName)
{
	String sColumnName(rColumnName);
	if(pMapping)
	{
		for(sal_uInt16 nEntry = 0; nEntry < COLUMN_COUNT; nEntry++)
		{
			if(pMapping->aColumnPairs[nEntry].sLogicalColumnName == OUString(rColumnName))
			{
				sColumnName = pMapping->aColumnPairs[nEntry].sRealColumnName;
				break;
			}
		}
	}
	rtl::OUString uColumnName(sColumnName);
	rtl::OUString uRet;
	Reference< sdb::XColumn >  xCol;
	if (xColumns->hasByName(uColumnName))
		xCol = Reference< sdb::XColumn > (*(Reference< XInterface > *)xColumns->getByName(uColumnName).getValue(), UNO_QUERY);
	if (xCol.is())
		uRet = xCol->getString();
	return uRet;
}
//-----------------------------------------------------------------------------
Any BibliographyLoader::getByName(const rtl::OUString& rName) throw
						( NoSuchElementException, WrappedTargetException, RuntimeException )
{
	Any aRet;
	try
	{
		BibDataManager* pDatMan = ((BibliographyLoader*)this)->GetDataManager();
		Reference< XResultSet >  xCursor = GetDataCursor();
		Reference< sdbcx::XColumnsSupplier >  xSupplyCols(xCursor, UNO_QUERY);
		Reference< XNameAccess >  xColumns;
		if (!xSupplyCols.is())
			return aRet;
		xColumns = xSupplyCols->getColumns();
		DBG_ASSERT(xSupplyCols.is(), "BibliographyLoader::getByName : invalid columns returned by the data cursor (may be the result set is not alive ?) !");
		if (!xColumns.is())
			return aRet;

		String sIdentifierMapping = pDatMan->GetIdentifierMapping();
		rtl::OUString sId = sIdentifierMapping;
		Reference< sdb::XColumn >  xColumn;
		if (xColumns->hasByName(sId))
			xColumn = Reference< sdb::XColumn > (*(Reference< XInterface > *)xColumns->getByName(sId).getValue(), UNO_QUERY);
		if (xColumn.is())
		{
			do
			{
				if ((rName == xColumn->getString()) && !xColumn->wasNull())
				{
					Sequence<PropertyValue> aPropSequ(COLUMN_COUNT);
					PropertyValue* pValues = aPropSequ.getArray();
					BibConfig* pConfig = BibModul::GetConfig();
					BibDBDescriptor aBibDesc = BibModul::GetConfig()->GetBibliographyURL();
					const Mapping* pMapping = pConfig->GetMapping(aBibDesc);
					for(sal_uInt16 nEntry = 0; nEntry < COLUMN_COUNT; nEntry++)
					{
						const String sColName = pConfig->GetDefColumnName(
													nEntry);
						pValues[nEntry].Name = sColName;
						pValues[nEntry].Value <<= lcl_AddProperty(xColumns, pMapping, sColName);
					}
					aRet.setValue(&aPropSequ, ::getCppuType((Sequence<PropertyValue>*)0));

					break;
				}
			}
			while(xCursor->next());
		}
	}
	catch(const Exception&)
	{
        DBG_UNHANDLED_EXCEPTION();
	}
	return aRet;
}
/*-- 17.11.99 12:51:39---------------------------------------------------

  -----------------------------------------------------------------------*/
Sequence< rtl::OUString > BibliographyLoader::getElementNames(void) throw ( RuntimeException )
{
	Sequence< rtl::OUString > aRet(10);
	int nRealNameCount = 0;
	try
	{
		Reference< XResultSet >  xCursor(GetDataCursor());
		Reference< sdb::XColumn >  xIdColumn(GetIdentifierColumn());
		if (xIdColumn.is()) // implies xCursor.is()
		{
			do
			{
				rtl::OUString sTemp = xIdColumn->getString();
				if (sTemp.getLength() && !xIdColumn->wasNull())
				{
					int nLen = aRet.getLength();
                    if(nLen == nRealNameCount)
						aRet.realloc(nLen + 10);
					rtl::OUString* pArray = aRet.getArray();
					pArray[nRealNameCount] = sTemp;
					nRealNameCount++;
				}
			}
			while (xCursor->next());
		}
	}
	catch(const Exception&)
	{
        DBG_UNHANDLED_EXCEPTION();
	}

	aRet.realloc(nRealNameCount);
	return aRet;
}
/*-- 17.11.99 12:51:39---------------------------------------------------

  -----------------------------------------------------------------------*/
sal_Bool BibliographyLoader::hasByName(const rtl::OUString& rName) throw ( RuntimeException )
{
	sal_Bool bRet = sal_False;
	try
	{
		Reference< XResultSet >  xCursor = GetDataCursor();
		Reference< sdb::XColumn >  xIdColumn = GetIdentifierColumn();

		if (xIdColumn.is()) 	// implies xCursor.is()
		{
			do
			{
				rtl::OUString sCurrentId = xIdColumn->getString();
				if (!xIdColumn->wasNull() && (rName.compareTo(sCurrentId) == COMPARE_EQUAL))
				{
					bRet = sal_True;
					break;
				}
			}
			while(xCursor->next());
		}
	}
	catch(const Exception&)
	{
        DBG_UNHANDLED_EXCEPTION();
	}
	return bRet;
}
/*-- 17.11.99 12:51:39---------------------------------------------------

  -----------------------------------------------------------------------*/
Type  BibliographyLoader::getElementType(void) throw ( RuntimeException )
{
	return ::getCppuType((Sequence<PropertyValue>*)0);
}
/*-- 17.11.99 12:51:40---------------------------------------------------

  -----------------------------------------------------------------------*/
sal_Bool BibliographyLoader::hasElements(void) throw ( RuntimeException )
{
	Reference< XResultSet >  xCursor = GetDataCursor();
	Reference< XNameAccess >  xColumns = GetDataColumns();
	return xColumns.is() && (xColumns->getElementNames().getLength() != 0);
}

/*-- 07.12.99 14:28:39---------------------------------------------------

  -----------------------------------------------------------------------*/
Reference< XPropertySetInfo >  BibliographyLoader::getPropertySetInfo(void) throw
											( RuntimeException )
{
    static SfxItemPropertyMapEntry aBibProps_Impl[] =
	{
		{ MAP_CHAR_LEN("BibliographyDataFieldNames"), 0, &::getCppuType((Sequence<PropertyValue>*)0), PropertyAttribute::READONLY, 0},
		{0,0,0,0,0,0}
	};
	static Reference< XPropertySetInfo >  xRet =
		SfxItemPropertySet(aBibProps_Impl).getPropertySetInfo();
	return xRet;
}
/*-- 07.12.99 14:28:39---------------------------------------------------

  -----------------------------------------------------------------------*/
void BibliographyLoader::setPropertyValue(const rtl::OUString& /*PropertyName*/,
										const Any& /*aValue*/)
	throw( UnknownPropertyException, PropertyVetoException,
		IllegalArgumentException, WrappedTargetException, RuntimeException)
{
	throw UnknownPropertyException();
	//no changeable properties
}
/*-- 07.12.99 14:28:39---------------------------------------------------

  -----------------------------------------------------------------------*/
Any BibliographyLoader::getPropertyValue(const rtl::OUString& rPropertyName)
	throw( UnknownPropertyException, WrappedTargetException, RuntimeException )
{
	Any aRet;
	static const sal_uInt16 aInternalMapping[] =
	{
		IDENTIFIER_POS			   , // BibliographyDataField_IDENTIFIER
		AUTHORITYTYPE_POS		   , // BibliographyDataField_BIBILIOGRAPHIC_TYPE
		ADDRESS_POS 			   , // BibliographyDataField_ADDRESS
		ANNOTE_POS				   , // BibliographyDataField_ANNOTE
		AUTHOR_POS				   , // BibliographyDataField_AUTHOR
		BOOKTITLE_POS			   , // BibliographyDataField_BOOKTITLE
		CHAPTER_POS 			   , // BibliographyDataField_CHAPTER
		EDITION_POS 			   , // BibliographyDataField_EDITION
		EDITOR_POS				   , // BibliographyDataField_EDITOR
		HOWPUBLISHED_POS		   , // BibliographyDataField_HOWPUBLISHED
		INSTITUTION_POS 		   , // BibliographyDataField_INSTITUTION
		JOURNAL_POS 			   , // BibliographyDataField_JOURNAL
		MONTH_POS				   , // BibliographyDataField_MONTH
		NOTE_POS				   , // BibliographyDataField_NOTE
		NUMBER_POS				   , // BibliographyDataField_NUMBER
		ORGANIZATIONS_POS		   , // BibliographyDataField_ORGANIZATIONS
		PAGES_POS				   , // BibliographyDataField_PAGES
		PUBLISHER_POS			   , // BibliographyDataField_PUBLISHER
		SCHOOL_POS				   , // BibliographyDataField_SCHOOL
		SERIES_POS				   , // BibliographyDataField_SERIES
		TITLE_POS				   , // BibliographyDataField_TITLE
		REPORTTYPE_POS			   , // BibliographyDataField_REPORT_TYPE
		VOLUME_POS				   , // BibliographyDataField_VOLUME
		YEAR_POS				   , // BibliographyDataField_YEAR
		URL_POS 				   , // BibliographyDataField_URL
		CUSTOM1_POS 			   , // BibliographyDataField_CUSTOM1
		CUSTOM2_POS 			   , // BibliographyDataField_CUSTOM2
		CUSTOM3_POS 			   , // BibliographyDataField_CUSTOM3
		CUSTOM4_POS 			   , // BibliographyDataField_CUSTOM4
		CUSTOM5_POS 			   , // BibliographyDataField_CUSTOM5
		ISBN_POS					//BibliographyDataField_ISBN
	};
	if(C2U("BibliographyDataFieldNames") == rPropertyName)
	{
		Sequence<PropertyValue> aSeq(COLUMN_COUNT);
		PropertyValue* pArray = aSeq.getArray();
		BibConfig* pConfig = BibModul::GetConfig();
		for(sal_uInt16 i = 0; i <= text::BibliographyDataField::ISBN ; i++)
		{
			pArray[i].Name = pConfig->GetDefColumnName(aInternalMapping[i]);
			pArray[i].Value <<= (sal_Int16) i;
		}
		aRet.setValue(&aSeq, ::getCppuType((Sequence<PropertyValue>*)0));
	}
	else
		throw UnknownPropertyException();
	return aRet;
}
/*-- 07.12.99 14:28:40---------------------------------------------------

  -----------------------------------------------------------------------*/
void BibliographyLoader::addPropertyChangeListener(
		const rtl::OUString& /*PropertyName*/, const Reference< XPropertyChangeListener > & /*aListener*/)
		throw( UnknownPropertyException, WrappedTargetException, RuntimeException )
{
	//no bound properties
}
/*-- 07.12.99 14:28:40---------------------------------------------------

  -----------------------------------------------------------------------*/
void BibliographyLoader::removePropertyChangeListener(
		const rtl::OUString& /*PropertyName*/, const Reference< XPropertyChangeListener > & /*aListener*/)
		throw( UnknownPropertyException, WrappedTargetException, RuntimeException )
{
	//no bound properties
}
/*-- 07.12.99 14:28:40---------------------------------------------------

  -----------------------------------------------------------------------*/
void BibliographyLoader::addVetoableChangeListener(
	const rtl::OUString& /*PropertyName*/, const Reference< XVetoableChangeListener > & /*aListener*/)
	throw( UnknownPropertyException, WrappedTargetException, RuntimeException )
{
	//no vetoable properties
}
/*-- 07.12.99 14:28:40---------------------------------------------------

  -----------------------------------------------------------------------*/
void BibliographyLoader::removeVetoableChangeListener(
	const rtl::OUString& /*PropertyName*/, const Reference< XVetoableChangeListener > & /*aListener*/)
	throw( UnknownPropertyException, WrappedTargetException, RuntimeException )
{
	//no vetoable properties
}