Trait IdSource 

pub trait IdSource: Send + Sync {
    // Required method
    fn new_id(&self) -> Uuid;

    // Provided method
    fn new_device_id(&self) -> DeviceId { ... }
}

The source of new ids, supplied when creating or opening a store.

Required Methods

fn new_id(&self) -> Uuid

A fresh UUID. Distinct calls must yield distinct ids.

Provided Methods

fn new_device_id(&self) -> DeviceId

A fresh device id derived from this source, without another randomness source. Every install and restored copy receives a new device id (§10.4).

Uses 62 payload bits from the UUID’s last eight bytes and two from its eighth byte: all 64 are random in UUIDv4 and UUIDv7. The version, variant and UUIDv7 timestamp contribute no bits.

Implementors

impl IdSource for SequentialIds

Available on crate feature test-utils only.

impl IdSource for UuidIds