Trait Transaction 

pub trait Transaction {
    type Error: Error;
    type Permit;

    // Required methods
    fn begin(&self) -> impl Future<Output = Result<Self::Permit, Self::Error>>;
    fn rollback(
        &self,
        permit: Self::Permit,
    ) -> impl Future<Output = Result<(), Self::Error>>;
    fn commit(
        &self,
        permit: Self::Permit,
    ) -> impl Future<Output = Result<(), Self::Error>>;
}

Traits to implement database transaction provider.

To guard against sharing transactions unknowingly across unrelated database queries, a concept of a “permit” was introduced which does not protect from misuse but helps to make “holding” a transaction explicit.

Required Associated Types

type Error: Error

type Permit

Required Methods

fn begin(&self) -> impl Future<Output = Result<Self::Permit, Self::Error>>

Begins a transaction.

fn rollback( &self, permit: Self::Permit, ) -> impl Future<Output = Result<(), Self::Error>>

Rolls back the transaction and with that all uncommitted changes.

fn commit( &self, permit: Self::Permit, ) -> impl Future<Output = Result<(), Self::Error>>

Commits the transaction.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors

impl Transaction for SqliteStore

Available on crate feature sqlite only.

type Error = SqliteError

type Permit = TransactionPermit

impl<E> Transaction for SqliteSpacesStore<E>

Available on crate features spaces and sqlite only.

type Error = SqliteError

type Permit = TransactionPermit