switch ( eDerivedStructuralFeatureID( eFeature ) )
switch ( featureID )
	public void eSet( EStructuralFeature eFeature, Object newValue )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case DataPackage.ORTHOGONAL_SAMPLE_DATA__DATA_SET_REPRESENTATION :				setDataSetRepresentation( (String) newValue );				return;			case DataPackage.ORTHOGONAL_SAMPLE_DATA__SERIES_DEFINITION_INDEX :				setSeriesDefinitionIndex( ( (Integer) newValue ).intValue( ) );				return;		}		eDynamicSet( eFeature, newValue );	}