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PersistentStorageProvider

uqa_storage::backend

Trait PersistentStorageProvider 

Source 
pub trait PersistentStorageProvider: Send + Sync {
    // Required method
    fn open_session(&self) -> StorageBackendResult<PersistentStorageSession>;

    // Provided method
    fn storage_identity(
        &self,
    ) -> StorageBackendResult<Option<PersistentStorageIdentity>> { ... }
}
Expand description

Factory for independent sessions over one durable database.

A provider owns the database-level resource while each returned session owns its transaction state. This is the engine-facing extension point for SQLite, redb, and application-defined Key/Value stores.

Required Methods§

Source

fn open_session(&self) -> StorageBackendResult<PersistentStorageSession>

Provided Methods§

Source

fn storage_identity( &self, ) -> StorageBackendResult<Option<PersistentStorageIdentity>>

Return the database identity shared by every session this provider opens. Custom providers that cannot expose a stable identity may keep the default; engines built from the same Arc provider still share an in-process coordinator.

Dyn Compatibility§

This trait is dyn compatible.

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

Implementors§