wow-core/me.ahoo.wow.eventsourcing.snapshot/InMemorySnapshotStore

InMemorySnapshotStore

class InMemorySnapshotStore : SnapshotStore

In-memory implementation of SnapshotStore for testing and development. Stores snapshots as detached JSON trees in a thread-safe map.

Constructors

InMemorySnapshotStore

constructor()

Types

object Companion

Properties

open override val name: String

The name of this repository.

Functions

open override fun close()

Closes this snapshot store and releases owned resources.

open fun getVersion(aggregateId: AggregateId): Mono<Int>

Gets the version of the latest snapshot for the specified aggregate. Returns UNINITIALIZED_VERSION if no snapshot exists.

open override fun <S : Any> load(aggregateId: AggregateId): Mono<Snapshot<S>>

Loads a snapshot from the in-memory map by deserializing the JSON tree.

fun SnapshotStore.metrizable(): SnapshotStore

Wraps a SnapshotStore with metrics collection capabilities. Returns a MetricSnapshotStore that collects metrics on snapshot storage operations. RoutingSnapshotStore remains transparent because the selected leaf store owns storage metrics.

open override fun <S : Any> save(snapshot: Snapshot<S>): Mono<Void>

Saves a snapshot to the in-memory map by serializing it to JSON. The atomic map computation ignores candidates older than the stored snapshot.