lyquor_state::versioned

Trait VersionedStateStoreR

pub trait VersionedStateStoreR<V>: Send + Sync
where
    V: VersionIdentifier,
{
    // Required methods
    fn get(&self, version_id: &V, key: Key) -> Option<Value>;
    fn get_all(&self, version_id: &V, key_prefix: Key) -> HashMap<Key, Value>;
    fn latest_version_id(&self) -> Option<V>;

    // Provided method
    fn debug_iter<'a>(
        &'a self,
        version_id: &V,
    ) -> Box<dyn Iterator<Item = (Key, Value)> + 'a> { ... }
}
Expand description

Read-only storage with versioning.

Required Methods§

fn get(&self, version_id: &V, key: Key) -> Option<Value>

Retrieve the value for a particular version given a key. Returns None if not exists.

fn get_all(&self, version_id: &V, key_prefix: Key) -> HashMap<Key, Value>

Retrieve all the values for a given key prefix in a given version. HashMap is empty if no such version or key prefix not exists.

fn latest_version_id(&self) -> Option<V>

Obtain the latest version identifier that has been successfully written.

Provided Methods§

fn debug_iter<'a>( &'a self, version_id: &V, ) -> Box<dyn Iterator<Item = (Key, Value)> + 'a>

Implementors§