switch ( eDerivedStructuralFeatureID( eFeature ) )
switch ( featureID )
	public boolean eIsSet( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case AttributePackage.MARKER__TYPE :				return isSetType( );			case AttributePackage.MARKER__SIZE :				return isSetSize( );			case AttributePackage.MARKER__VISIBLE :				return isSetVisible( );			case AttributePackage.MARKER__ICON_PALETTE :				return iconPalette != null;		}		return eDynamicIsSet( eFeature );	}