Trait StorageAccess 

pub trait StorageAccess<K, V>: Send + Sync
where
    K: Hash + Eq + Clone + Send + Sync + 'static,
    V: Clone + Send + Sync + 'static,
{
    // Required methods
    fn get(&self, key: &K) -> Option<V>;
    fn put(&self, key: K, value: V);
    fn invalidate(&self, key: &K);
    fn clear(&self);

    // Provided method
    fn contains(&self, key: &K) -> bool { ... }
}

Synchronous key-value cache interface.

K is the key type; V is the value type.

Required Methods

fn get(&self, key: &K) -> Option<V>

Returns the value for key, or None when absent.

fn put(&self, key: K, value: V)

Stores value under key, overwriting any existing entry.

fn invalidate(&self, key: &K)

Removes the entry for key, if present.

fn clear(&self)

Removes all entries.

Provided Methods

fn contains(&self, key: &K) -> bool

Returns true when a value is present for key.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl<K, V> StorageAccess<K, V> for InMemoryStorageAccess<K, V>

where K: Hash + Eq + Clone + Send + Sync + 'static, V: Clone + Send + Sync + 'static,

impl<K, V> StorageAccess<K, V> for RedisStorageAccess

where K: Hash + Eq + Clone + ToString + Send + Sync + 'static, V: Clone + Serialize + DeserializeOwned + Send + Sync + 'static,