return eDynamicIsSet( eFeature );
return super.eIsSet( featureID );
	public boolean eIsSet( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case ComponentPackage.CHART_PREFERENCES__LABELS :				return labels != null && !labels.isEmpty( );			case ComponentPackage.CHART_PREFERENCES__BLOCKS :				return blocks != null && !blocks.isEmpty( );		}		return eDynamicIsSet( eFeature );	}