Package akka.javasdk.eventsourcedentity

package akka.javasdk.eventsourcedentity

Event Sourced Entity components for building stateful services that persist changes as events in a journal.

Event Sourced Entities store a sequence of events rather than the current state directly. The current state is derived by replaying all events from the journal. This approach provides a complete audit trail, enables reliable state replication, and allows for sophisticated event-driven architectures.

The main classes in this package are:

• EventSourcedEntity - The base class for implementing Event Sourced Entities
• CommandContext - Context available during command processing
• EventContext - Context available during event processing
• EventSourcedEntityContext - Context available during entity construction

See Also:

• EventSourcedEntity

Related Packages

Package	Description
akka.javasdk	Root package of the Akka SDK.

Class	Description
CommandContext	Context information available to Event Sourced Entity command handlers during command processing.
EventContext	Context information available when processing events in the EventSourcedEntity.applyEvent(E) method.
EventSourcedEntity<S,E>	Event Sourced Entities are stateful components that persist changes as events in a journal rather than storing the current state directly.
EventSourcedEntity.Effect<T>	An Effect describes the actions that the Akka runtime should perform after a command handler completes.
EventSourcedEntity.Effect.Builder<S,E>	Construct the effect that is returned by the command handler.
EventSourcedEntity.Effect.OnSuccessBuilder<S>
EventSourcedEntity.ReadOnlyEffect<T>	An effect that is known to be read only and does not update the state of the entity.
EventSourcedEntityContext	Context information available during Event Sourced Entity construction and initialization.