Enum sqlstate_inline::Category

#[repr(u8)]
pub enum Category {
    Success,
    Warning,
    NoData,
    Exception,
}

A general category for a given SQLSTATE code.

The conditions Success and NoData are normally hidden by database driver abstractions.

Variants

Success

Category S: Successful completion.

Warning

Category W: Successful completion with a warning.

NoData

Category N: No data / empty result.

Exception

Category X: Exceptional condition.

Trait Implementations

impl Clone for Category

fn clone(&self) -> Category

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Category

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<Category> for char

fn from(c: Category) -> Self

Converts the Category into the corresponding category abbrevation character.

let success = SqlState("00000");
let category = success.category();
assert_eq!(char::from(category), 'S');

impl From<Category> for u8

fn from(c: Category) -> Self

Converts the Category into the corresponding ASCII byte character.

let no_data = SqlState("02000");
let category = no_data.category();
assert_eq!(u8::from(category), b'N');

impl PartialEq<Category> for Category

fn eq(&self, other: &Category) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<char> for Category

fn try_from(char: char) -> Result<Self, Self::Error>

Constructs a Category from a category abbrevation character.

let category: Category = 'X'.try_into()?;

type Error = ParseError

The type returned in the event of a conversion error.

impl TryFrom<u8> for Category

fn try_from(byte: u8) -> Result<Self, Self::Error>

Constructs a Category from an ASCII byte character.

let category: Category = b'X'.try_into()?;

type Error = ParseError

The type returned in the event of a conversion error.

impl Copy for Category

impl Eq for Category

impl StructuralEq for Category

impl StructuralPartialEq for Category