Trait EventListener 

pub trait EventListener:
    Send
    + Sync
    + 'static {
    type Key;
    type Value;

    // Provided method
    fn on_leave(&self, reason: Event, key: &Self::Key, value: &Self::Value)
       where Self::Key: Key,
             Self::Value: Value { ... }
}

Trait for the customized event listener.

Required Associated Types

type Key

Associated key type.

type Value

Associated value type.

Provided Methods

fn on_leave(&self, reason: Event, key: &Self::Key, value: &Self::Value)

where Self::Key: Key, Self::Value: Value,

Called when a cache entry leaves the in-memory cache with the reason.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors