public boolean eIsSet( EStructuralFeature eFeature )
public boolean eIsSet( int featureID )
	public boolean eIsSet( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case AttributePackage.DATE_FORMAT_SPECIFIER__TYPE :				return isSetType( );			case AttributePackage.DATE_FORMAT_SPECIFIER__DETAIL :				return isSetDetail( );		}		return eDynamicIsSet( eFeature );	}