Struct PostgresSnapshotStoreAggregateContext

pub struct PostgresSnapshotStoreAggregateContext<A>
where
    A: Aggregate,
{
    pub aggregate_id: String,
    pub current_sequence: usize,
    /* private fields */
}

Holds context for a pure event store implementation for MemStore

Fields

aggregate_id: String

The aggregate ID of the aggregate instance that has been loaded.

current_sequence: usize

The last committed event sequence number for this aggregate instance.

Implementations

impl<A> PostgresSnapshotStoreAggregateContext<A>

where A: Aggregate,

pub fn new( aggregate_id: String, aggregate: A, current_sequence: usize, ) -> PostgresSnapshotStoreAggregateContext<A>

creates a new instance

Trait Implementations

impl<A> AggregateContext<A> for PostgresSnapshotStoreAggregateContext<A>

where A: Aggregate,

fn aggregate(&self) -> &A

The aggregate instance with all state loaded.

impl<A: Aggregate> EventStore<A, PostgresSnapshotStoreAggregateContext<A>> for PostgresSnapshotStore<A>

fn load(&mut self, aggregate_id: &str) -> Vec<EventEnvelope<A>>

Load all events for a particular aggregate_id

fn load_aggregate( &mut self, aggregate_id: &str, ) -> PostgresSnapshotStoreAggregateContext<A>

Load aggregate at current state

fn commit( &mut self, events: Vec<A::Event>, context: PostgresSnapshotStoreAggregateContext<A>, metadata: HashMap<String, String>, ) -> Result<Vec<EventEnvelope<A>>, AggregateError>

Commit new events

fn wrap_events( &self, aggregate_id: &str, current_sequence: usize, resultant_events: Vec<<A as Aggregate>::Event>, base_metadata: HashMap<String, String>, ) -> Vec<EventEnvelope<A>>

Method to wrap a set of events with the additional metadata needed for persistence and publishing