switch ( eDerivedStructuralFeatureID( eFeature ) )
switch ( featureID )
	public boolean eIsSet( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case AttributePackage.URL_VALUE__BASE_URL :				return BASE_URL_EDEFAULT == null ? baseUrl != null						: !BASE_URL_EDEFAULT.equals( baseUrl );			case AttributePackage.URL_VALUE__TARGET :				return TARGET_EDEFAULT == null ? target != null						: !TARGET_EDEFAULT.equals( target );			case AttributePackage.URL_VALUE__BASE_PARAMETER_NAME :				return BASE_PARAMETER_NAME_EDEFAULT == null ? baseParameterName != null						: !BASE_PARAMETER_NAME_EDEFAULT.equals( baseParameterName );			case AttributePackage.URL_VALUE__VALUE_PARAMETER_NAME :				return VALUE_PARAMETER_NAME_EDEFAULT == null ? valueParameterName != null						: !VALUE_PARAMETER_NAME_EDEFAULT.equals( valueParameterName );			case AttributePackage.URL_VALUE__SERIES_PARAMETER_NAME :				return SERIES_PARAMETER_NAME_EDEFAULT == null ? seriesParameterName != null						: !SERIES_PARAMETER_NAME_EDEFAULT.equals( seriesParameterName );		}		return eDynamicIsSet( eFeature );	}