switch ( eDerivedStructuralFeatureID( eFeature ) )
switch ( featureID )
	public void eUnset( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case AttributePackage.EMBEDDED_IMAGE__TYPE :				unsetType( );				return;			case AttributePackage.EMBEDDED_IMAGE__URL :				setURL( URL_EDEFAULT );				return;			case AttributePackage.EMBEDDED_IMAGE__DATA :				setData( DATA_EDEFAULT );				return;		}		eDynamicUnset( eFeature );	}