public boolean eIsSet( EStructuralFeature eFeature )
public boolean eIsSet( int featureID )
	public boolean eIsSet( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case DataPackage.DATA_SET__VALUES :				return VALUES_EDEFAULT == null ? values != null						: !VALUES_EDEFAULT.equals( values );		}		return eDynamicIsSet( eFeature );	}