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.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

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,

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,

Implementors

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