case ModelPackage.CHART__STYLES : getStyles( ).clear( ); return;
	public void eUnset( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case ModelPackage.CHART__VERSION :				unsetVersion( );				return;			case ModelPackage.CHART__TYPE :				setType( TYPE_EDEFAULT );				return;			case ModelPackage.CHART__SUB_TYPE :				setSubType( SUB_TYPE_EDEFAULT );				return;			case ModelPackage.CHART__DESCRIPTION :				setDescription( (Text) null );				return;			case ModelPackage.CHART__BLOCK :				setBlock( (Block) null );				return;			case ModelPackage.CHART__DIMENSION :				unsetDimension( );				return;			case ModelPackage.CHART__SCRIPT :				setScript( SCRIPT_EDEFAULT );				return;			case ModelPackage.CHART__UNITS :				setUnits( UNITS_EDEFAULT );				return;			case ModelPackage.CHART__SERIES_THICKNESS :				unsetSeriesThickness( );				return;			case ModelPackage.CHART__GRID_COLUMN_COUNT :				unsetGridColumnCount( );				return;			case ModelPackage.CHART__EXTENDED_PROPERTIES :				getExtendedProperties( ).clear( );				return;			case ModelPackage.CHART__SAMPLE_DATA :				setSampleData( (SampleData) null );				return;		}		eDynamicUnset( eFeature );	}