Trait NotificationForwarderPersistence 

pub trait NotificationForwarderPersistence: Send + Sync {
    // Required methods
    fn load(
        &self,
        forwarder: ObjectIdentifier,
    ) -> Result<Option<ForwarderSnapshot>, Error>;
    fn save(
        &self,
        forwarder: ObjectIdentifier,
        snapshot: &ForwarderSnapshot,
    ) -> Result<(), Error>;
}

Application-owned storage for one Notification Forwarder’s lists.

The forwarder calls it from its writer thread, one call at a time. A written list lands in storage a moment before the forwarder serves it: see storage leads the served state.

Required Methods

fn load( &self, forwarder: ObjectIdentifier, ) -> Result<Option<ForwarderSnapshot>, Error>

The lists last saved for forwarder, or None when nothing was saved.

fn save( &self, forwarder: ObjectIdentifier, snapshot: &ForwarderSnapshot, ) -> Result<(), Error>

Durably replace what is saved for forwarder with snapshot.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl NotificationForwarderPersistence for FileNotificationForwarderPersistence