Crate sourcery_core 

Core traits and types for the Sourcery event-sourcing library.

This crate provides the foundational abstractions for event sourcing:

• aggregate - Command-side primitives (Aggregate, Apply, Handle)
• projection - Read-side primitives (Projection, ProjectionFilters, ApplyProjection, Filters)
• repository - Command execution and aggregate lifecycle (Repository)
• store - Event persistence abstraction (EventStore)
• snapshot - Snapshot storage abstraction (SnapshotStore)
• event - Event marker traits (DomainEvent, EventKind, ProjectionEvent)
• concurrency - Concurrency strategy markers (Optimistic, Unchecked)

Example

use sourcery_core::{repository::Repository, store::inmemory};

// Create an in-memory store and repository
let store: inmemory::Store<String, ()> = inmemory::Store::new();
let repo = Repository::new(store);

Most users should depend on the sourcery crate, which re-exports these types with a cleaner API surface.

Modules

aggregate

Command-side domain primitives.

concurrency

Compile-time concurrency strategy selection.

event

Domain event marker.

projection

Read-side primitives.

repository

Command execution and aggregate lifecycle management.

snapshot

Snapshot support for optimised aggregate loading.

store

Persistence layer abstractions.

subscription

Push-based projection subscriptions.