Trait NotificationClassPersistence 

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

Application-owned storage for one Notification Class’s Recipient_List.

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

Required Methods

fn load( &self, class: ObjectIdentifier, ) -> Result<Option<NotificationClassSnapshot>, Error>

What was last saved for class, or None when nothing was saved.

fn save( &self, class: ObjectIdentifier, snapshot: &NotificationClassSnapshot, ) -> Result<(), Error>

Durably replace what is saved for class with snapshot.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl NotificationClassPersistence for FileNotificationClassPersistence