Module backend 

Backend abstraction for the event store.

The EventStore trait keeps backends interchangeable: in-memory under simulation, redb in production, and any future swap (custom WAL, segmented log) without touching consumers. Backend-specific types (redb::Database, redb::Error) never appear in this trait surface.

Re-exports

pub use memory::MemoryBackend;

pub use redb::RedbBackend;

Modules

memory

In-memory EventStore backend used by writer and reader unit tests and by the cfg(madsim) simulation backend.

redb

redb-backed EventStore implementation.

Structs

AppendEntry

One entry plus its sidecar index keys, as accepted by EventStore::append_batch.

IndexKey

A single sidecar index entry recorded atomically with an event store entry.

Enums

IndexKind

The kind of secondary index the reader can look up.

ScanDirection

Direction for a sequence-keyed scan.

Traits

EventStore

The single-node embedded event store.