Trait TtlBackend

pub trait TtlBackend: Clone {
    type Duration;

    // Required methods
    fn now() -> Self;
    fn expired() -> Self;
    fn add(self, dt: Self::Duration) -> Self;
    fn is_valid(&self) -> bool;
    fn is_expired(&self) -> bool;
}

Required Associated Types

type Duration

Required Methods

fn now() -> Self

fn expired() -> Self

fn add(self, dt: Self::Duration) -> Self

fn is_valid(&self) -> bool

fn is_expired(&self) -> bool

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.

Implementations on Foreign Types

impl TtlBackend for Instant

type Duration = Duration

fn now() -> Self

fn expired() -> Self

fn add(self, dt: Self::Duration) -> Self

fn is_valid(&self) -> bool

fn is_expired(&self) -> bool

impl TtlBackend for DateTime<Utc>

type Duration = TimeDelta

fn now() -> Self

fn expired() -> Self

fn add(self, dt: Self::Duration) -> Self

fn is_valid(&self) -> bool

fn is_expired(&self) -> bool

Implementors