Trait JournalBackend 

pub trait JournalBackend: Send + Sync {
    // Required methods
    fn acquire_lease(&self) -> Result<Lease, JournalError>;
    fn read_state(&self) -> Result<StoredState, JournalError>;
    fn admit(&self, admission: Admission) -> Result<JournalHead, JournalError>;
}

Object-safe storage seam. A Table backend implements admit with canonical table/cas; it must refuse writes unless CAS and durability are provable.

Required Methods

fn acquire_lease(&self) -> Result<Lease, JournalError>

fn read_state(&self) -> Result<StoredState, JournalError>

fn admit(&self, admission: Admission) -> Result<JournalHead, JournalError>

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<T: JournalBackend + ?Sized> JournalBackend for Arc<T>

fn acquire_lease(&self) -> Result<Lease, JournalError>

fn read_state(&self) -> Result<StoredState, JournalError>

fn admit(&self, admission: Admission) -> Result<JournalHead, JournalError>

Implementors

impl JournalBackend for HostDirJournalBackend

impl JournalBackend for MemoryBackend