Bug 149922 Image builder - URI and file source type are treated as same
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
writeUserPropertyValues( obj );
		writeStructureList( obj, GroupElement.SORT_PROP );
		writeStructureList( obj, GroupElement.FILTER_PROP );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitExtendedDataSet(org.eclipse.birt.report.model.elements.ExtendedDataSet)
	 */
	public void visitOdaDataSet( OdaDataSet obj )
	{
		writer.startElement( DesignSchemaConstants.ODA_DATA_SET_TAG );
		attribute( obj, OdaDataSet.EXTENSION_ID_PROP,
				OdaDataSet.EXTENSION_ID_PROP );
		super.visitOdaDataSet( obj );
		writeStructureList( obj, DataSet.RESULT_SET_PROP );
		
		if ( (String) obj.getLocalProperty( getModule( ),
				OdaDataSet.QUERY_TEXT_PROP ) != null )
		{
			property( obj, OdaDataSet.QUERY_TEXT_PROP );
		}
		property( obj, OdaDataSet.RESULT_SET_NAME_PROP );
		writeOdaDesignerState( obj, OdaDataSet.DESIGNER_STATE_PROP );
		List properties = (List) obj.getLocalProperty( getModule( ),
				OdaDataSet.PRIVATE_DRIVER_PROPERTIES_PROP );
		writeExtendedProperties( properties,
				OdaDataSet.PRIVATE_DRIVER_PROPERTIES_PROP );
		writeOdaExtensionProperties( obj, OdaDataSet.EXTENSION_ID_PROP );
		writer.endElement( );