Trait Formatter

pub trait Formatter: Debug {
    type Error: Error;
    type Serialized;

    const ID: &'static str;

    // Required methods
    fn serialize<T: Serialize>(
        &self,
        value: &T,
    ) -> Result<Self::Serialized, Self::Error>;
    fn deserialize<T: DeserializeOwned>(
        &self,
        value: &Self::Serialized,
    ) -> Result<T, Self::Error>;
}

A formatter that can serialize data before storing it in a cache and deserialize it after retrieving it from the cache.

Required Associated Constants

const ID: &'static str

The unique identifier of this formatter.

Required Associated Types

type Error: Error

The error to return if serialization or deserialization fails.

type Serialized

The type of serialized data.

Required Methods

fn serialize<T: Serialize>( &self, value: &T, ) -> Result<Self::Serialized, Self::Error>

Serialize a T and return a Self::Serialized.

fn deserialize<T: DeserializeOwned>( &self, value: &Self::Serialized, ) -> Result<T, Self::Error>

Deserialize a Self::Serialized and return a T.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Formatter for JsonFormatter

Available on crate feature serde_json only.

const ID: &'static str = "json"

type Error = Error

type Serialized = String

impl Formatter for PostcardFormatter

const ID: &'static str = "postcard"

type Error = Error

type Serialized = Vec<u8>