Trait FromDatabaseBytes 

pub trait FromDatabaseBytes {
    // Required method
    fn from_key_bytes(bytes: &[u8]) -> Self
       where Self: Sized;

    // Provided method
    fn from_value_bytes(bytes: &[u8]) -> Self
       where Self: Sized { ... }
}

Required Methods

fn from_key_bytes(bytes: &[u8]) -> Self

where Self: Sized,

Reads the value from the database key bytes. In the default implementation, this will also be used for the value bytes.

Provided Methods

fn from_value_bytes(bytes: &[u8]) -> Self

where Self: Sized,

Reads the value from the database bytes (in value encoding). This is only necessary if the value needs to be sorted differently in a dup table. DUP values use a lexicographic sort order.

Implementations on Foreign Types

impl FromDatabaseBytes for u16

fn from_key_bytes(bytes: &[u8]) -> u16

where u16: Sized,

fn from_value_bytes(bytes: &[u8]) -> u16

where u16: Sized,

impl FromDatabaseBytes for u32

fn from_key_bytes(bytes: &[u8]) -> u32

where u32: Sized,

fn from_value_bytes(bytes: &[u8]) -> u32

where u32: Sized,

impl FromDatabaseBytes for u64

fn from_key_bytes(bytes: &[u8]) -> u64

where u64: Sized,

fn from_value_bytes(bytes: &[u8]) -> u64

where u64: Sized,

impl FromDatabaseBytes for ()

fn from_key_bytes(bytes: &[u8])

where (): Sized,

impl FromDatabaseBytes for String

fn from_key_bytes(bytes: &[u8]) -> String

where String: Sized,

impl FromDatabaseBytes for Vec<u8>

fn from_key_bytes(bytes: &[u8]) -> Vec<u8>

where Vec<u8>: Sized,

Implementors

impl<I: Key, V: Value> FromDatabaseBytes for IndexedValue<I, V>