public void eUnset( EStructuralFeature eFeature )
public void eUnset( int featureID )
	public void eUnset( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case DataPackage.SERIES_GROUPING__ENABLED :				unsetEnabled( );				return;			case DataPackage.SERIES_GROUPING__GROUPING_UNIT :				unsetGroupingUnit( );				return;			case DataPackage.SERIES_GROUPING__GROUPING_ORIGIN :				setGroupingOrigin( (DataElement) null );				return;			case DataPackage.SERIES_GROUPING__GROUPING_INTERVAL :				unsetGroupingInterval( );				return;			case DataPackage.SERIES_GROUPING__GROUP_TYPE :				unsetGroupType( );				return;			case DataPackage.SERIES_GROUPING__AGGREGATE_EXPRESSION :				setAggregateExpression( AGGREGATE_EXPRESSION_EDEFAULT );				return;		}		eDynamicUnset( eFeature );	}