journal

Type Members

1. trait AsyncRecovery extends AnyRef

   

   Asynchronous message replay and sequence number recovery interface.

2. class AsyncReplayTimeoutException extends AkkaException

   

   Thrown if replay inactivity exceeds a specified timeout.

   Thrown if replay inactivity exceeds a specified timeout.

   Annotations

   @SerialVersionUID()

3. trait AsyncWriteJournal extends Actor with WriteJournalBase with AsyncRecovery

   

   Abstract journal, optimized for asynchronous, non-blocking writes.

4. sealed trait EmptyEventSeq extends EventSeq

   

5. trait EventAdapter extends WriteEventAdapter with ReadEventAdapter

   

   An EventAdapter is both a WriteEventAdapter and a ReadEventAdapter.

   An EventAdapter is both a WriteEventAdapter and a ReadEventAdapter. Facility to convert from and to specialised data models, as may be required by specialized persistence Journals.

   Typical use cases include (but are not limited to):

   • adding metadata, a.k.a. "tagging" - by wrapping objects into tagged counterparts
   • manually converting to the Journals storage format, such as JSON, BSON or any specialised binary format
   • adapting incoming events in any way before persisting them by the journal

6. class EventAdapters extends AnyRef

   

   EventAdapters serves as a per-journal collection of bound event adapters.

7. sealed abstract class EventSeq extends AnyRef

   

8. final case class EventsSeq[E](events: Seq[E]) extends EventSeq with Product with Serializable

   

9. final class PersistencePluginProxy extends Actor with Stash with ActorLogging

   

10. class PersistencePluginProxyExtensionImpl extends Extension

    

    PersistencePluginProxyExtensionImpl is an Extension that enables initialization of the PersistencePluginProxy via configuration, without requiring any code changes or the creation of any actors.

11. trait ReadEventAdapter extends AnyRef

    

    Facility to convert from and to specialised data models, as may be required by specialized persistence Journals.

    Facility to convert from and to specialised data models, as may be required by specialized persistence Journals.

    Typical use cases include (but are not limited to):

    • extracting events from "envelopes"
    • manually converting to the Journals storage format, such as JSON, BSON or any specialised binary format
    • adapting incoming events from a "data model" to the "domain model"

12. final case class SingleEventSeq(event: Any) extends EventSeq with Product with Serializable

    

13. case class Tagged(payload: Any, tags: Set[String]) extends Product with Serializable

    

    The journal may support tagging of events that are used by the EventsByTag query and it may support specifying the tags via an akka.persistence.journal.EventAdapter that wraps the events in a Tagged with the given tags.

    The journal may support tagging of events that are used by the EventsByTag query and it may support specifying the tags via an akka.persistence.journal.EventAdapter that wraps the events in a Tagged with the given tags. The journal may support other ways of doing tagging. Please consult the documentation of the specific journal implementation for more information.

    The journal will unwrap the event and store the payload.

14. trait WriteEventAdapter extends AnyRef

    

    Facility to convert to specialised data models, as may be required by specialized persistence Journals.

    Facility to convert to specialised data models, as may be required by specialized persistence Journals.

    Typical use cases include (but are not limited to):

    • adding metadata, a.k.a. "tagging" - by wrapping objects into tagged counterparts
    • manually converting to the Journals storage format, such as JSON, BSON or any specialised binary format
    • splitting up large events into sequences of smaller ones