Trait obkv::Key

pub trait Key: Copy {
    type BYTES: AsRef<[u8]> + for<'a> TryFrom<&'a [u8]>;

    const BYTES_SIZE: usize;

    fn to_be_bytes(&self) -> Self::BYTES;
    fn from_be_bytes(array: Self::BYTES) -> Self;
}

A trait that represents a key, this key will be encoded to disk.

Associated Types

type BYTES: AsRef<[u8]> + for<'a> TryFrom<&'a [u8]>

The array that will contain the bytes of the key.

Associated Constants

const BYTES_SIZE: usize

The number of bytes the BYTES array contains.

Required methods

fn to_be_bytes(&self) -> Self::BYTES

Returns an array of the key bytes in big-endian.

fn from_be_bytes(array: Self::BYTES) -> Self

Returns the key that corresponds to the given bytes array.

Implementations on Foreign Types

impl Key for u8

const BYTES_SIZE: usize

type BYTES = [u8; 1]

fn to_be_bytes(&self) -> Self::BYTES

fn from_be_bytes(array: Self::BYTES) -> Self

impl Key for u16

const BYTES_SIZE: usize

type BYTES = [u8; 2]

fn to_be_bytes(&self) -> Self::BYTES

fn from_be_bytes(array: Self::BYTES) -> Self

impl Key for u32

const BYTES_SIZE: usize

type BYTES = [u8; 4]

fn to_be_bytes(&self) -> Self::BYTES

fn from_be_bytes(array: Self::BYTES) -> Self

impl Key for u64

const BYTES_SIZE: usize

type BYTES = [u8; 8]

fn to_be_bytes(&self) -> Self::BYTES

fn from_be_bytes(array: Self::BYTES) -> Self

Implementors