c

akka.persistence.typed.javadsl

ReplicatedEventSourcedOnCommandWithReplyBehavior

abstract class ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] extends EventSourcedOnCommandWithReplyBehavior[Command, Event, State]

Base class for replicated event sourced behaviors for projects built with Java 17 or newer where message handling can be done using switch pattern match.

Enforces replies to every received command.

For building replicated event sourced actors with Java versions before 17, see ReplicatedEventSourcedBehavior

Source
ReplicatedEventSourcedOnCommandWithReplyBehavior.scala
Linear Supertypes
EventSourcedOnCommandWithReplyBehavior[Command, Event, State], DeferredBehavior[Command], Behavior[Command], AnyRef, Any
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. ReplicatedEventSourcedOnCommandWithReplyBehavior
  2. EventSourcedOnCommandWithReplyBehavior
  3. DeferredBehavior
  4. Behavior
  5. AnyRef
  6. Any
Implicitly
  1. by BehaviorDecorators
  2. by any2stringadd
  3. by StringFormat
  4. by Ensuring
  5. by ArrowAssoc
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  2. Show All
Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new ReplicatedEventSourcedOnCommandWithReplyBehavior(replicationContext: ReplicationContext)
  2. new ReplicatedEventSourcedOnCommandWithReplyBehavior(replicationContext: ReplicationContext, onPersistFailure: Optional[BackoffSupervisorStrategy])

Abstract Value Members

  1. abstract def emptyState: State

    Implement by returning the initial empty state object.

    Implement by returning the initial empty state object. This object will be passed into this behaviors handlers, until a new state replaces it.

    Also known as "zero state" or "neutral state".

    Attributes
    protected
    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  2. abstract def onCommand(state: State, command: Command): ReplyEffect[Event, State]

    Implement by handling incoming commands and return an Effect() to persist or signal other effects of the command handling such as stopping the behavior or others.

    Implement by handling incoming commands and return an Effect() to persist or signal other effects of the command handling such as stopping the behavior or others.

    The command handlers are only invoked when the actor is running (i.e. not replaying). While the actor is persisting events, the incoming messages are stashed and only delivered to the handler once persisting them has completed.

    Attributes
    protected
    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  3. abstract def onEvent(state: State, event: Event): State

    Implement by applying the event to the current state in order to return a new state.

    Implement by applying the event to the current state in order to return a new state.

    The event handlers are invoked during recovery as well as running operation of this behavior, in order to keep updating the state state.

    For that reason it is strongly discouraged to perform side-effects in this handler; Side effects should be executed in thenRun or recoveryCompleted blocks.

    Attributes
    protected
    Definition Classes
    EventSourcedOnCommandWithReplyBehavior

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toany2stringadd[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State], B)
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toArrowAssoc[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def Effect: EffectFactories[Event, State]

    Factory of effects.

    Factory of effects.

    Return effects from your handlers in order to instruct persistence on how to act on the incoming message (i.e. persist events).

    Attributes
    protected
    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  7. def apply(context: TypedActorContext[Command]): Behavior[Command]

    INTERNAL API: DeferredBehavior init, not for user extension

    INTERNAL API: DeferredBehavior init, not for user extension

    Definition Classes
    ReplicatedEventSourcedOnCommandWithReplyBehaviorEventSourcedOnCommandWithReplyBehavior → DeferredBehavior
    Annotations
    @InternalApi()
  8. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  9. val behavior: Behavior[Command]
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toBehaviorDecorators[Command] performed by method BehaviorDecorators in akka.actor.typed.Behavior.
    Definition Classes
    BehaviorDecorators
  10. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @HotSpotIntrinsicCandidate() @native()
  11. def deleteEventsOnSnapshot: Boolean

    Can be used to delete events after shouldSnapshot.

    Can be used to delete events after shouldSnapshot.

    Can be used in combination with EventSourcedBehavior.retentionCriteria in a way that events are triggered up the the oldest snapshot based on RetentionCriteria.snapshotEvery config.

    returns

    true if events should be deleted after shouldSnapshot evaluates to true

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  12. def ensuring(cond: (ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]) => Boolean, msg: => Any): ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toEnsuring[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: (ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]) => Boolean): ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toEnsuring[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: Boolean, msg: => Any): ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toEnsuring[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: Boolean): ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toEnsuring[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  18. def eventAdapter(): EventAdapter[Event, _]

    Transform the event in another type before giving to the journal.

    Transform the event in another type before giving to the journal. Can be used to wrap events in types Journals understand but is of a different type than Event.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  19. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  20. def getReplicationContext(): ReplicationContext
    Attributes
    protected
  21. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  22. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  23. def journalPluginId: String

    Override and define the journal plugin id that this actor should use instead of the default.

    Override and define the journal plugin id that this actor should use instead of the default.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  24. final def lastSequenceNumber(ctx: ActorContext[_]): Long

    The last sequence number that was persisted, can only be called from inside the handlers of an EventSourcedBehavior

    The last sequence number that was persisted, can only be called from inside the handlers of an EventSourcedBehavior

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  25. final def narrow[U <: Command]: Behavior[U]

    Narrow the type of this Behavior, which is always a safe operation.

    Narrow the type of this Behavior, which is always a safe operation. This method is necessary to implement the contravariant nature of Behavior (which cannot be expressed directly due to type inference problems).

    Definition Classes
    Behavior
  26. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  27. final def newSignalHandlerBuilder(): SignalHandlerBuilder[State]

    returns

    A new, mutable signal handler builder

    Attributes
    protected
    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  28. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  29. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  30. val persistenceId: PersistenceId
  31. def recovery: Recovery

    Override to change the strategy for recovery of snapshots and events.

    Override to change the strategy for recovery of snapshots and events. By default, snapshots and events are recovered.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  32. def replicationInterceptor: Optional[ReplicationInterceptor[Event, State]]

    If a callback is returned it is invoked when an event from another replica arrives, delaying persisting the event until the returned completion stage completes, if the future fails the actor is crashed.

    If a callback is returned it is invoked when an event from another replica arrives, delaying persisting the event until the returned completion stage completes, if the future fails the actor is crashed.

    Only used when the entity is replicated.

    Annotations
    @ApiMayChange()
  33. def retentionCriteria: RetentionCriteria

    Criteria for retention/deletion of snapshots and events.

    Criteria for retention/deletion of snapshots and events. By default, retention is disabled and snapshots are not saved and deleted automatically.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  34. def shouldSnapshot(state: State, event: Event, sequenceNr: Long): Boolean

    Initiates a snapshot if the given predicate evaluates to true.

    Initiates a snapshot if the given predicate evaluates to true.

    Decide to store a snapshot based on the State, Event and sequenceNr when the event has been successfully persisted.

    When persisting multiple events at once the snapshot is triggered after all the events have been persisted.

    Snapshots triggered by shouldSnapshot will not trigger deletes of old snapshots and events if EventSourcedBehavior.retentionCriteria with RetentionCriteria.snapshotEvery is used together with shouldSnapshot. Such deletes are only triggered by snapshots matching the numberOfEvents in the RetentionCriteria.

    Events can be deleted if deleteEventsOnSnapshot returns true.

    returns

    true if snapshot should be saved at the given state, event and sequenceNr when the event has been successfully persisted

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  35. def signalHandler(): SignalHandler[State]

    Override to react on general lifecycle signals and persistence specific signals (subtypes of akka.persistence.typed.EventSourcedSignal).

    Override to react on general lifecycle signals and persistence specific signals (subtypes of akka.persistence.typed.EventSourcedSignal).

    Use EventSourcedBehavior#newSignalHandlerBuilder to define the signal handler.

    Attributes
    protected
    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  36. def snapshotAdapter(): SnapshotAdapter[State]

    Transform the state into another type before giving it to and from the journal.

    Transform the state into another type before giving it to and from the journal. Can be used to migrate from different state types e.g. when migration from PersistentFSM to Typed EventSourcedBehavior.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  37. def snapshotPluginId: String

    Override and define the snapshot store plugin id that this actor should use instead of the default.

    Override and define the snapshot store plugin id that this actor should use instead of the default.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  38. def stashCapacity: Optional[Integer]

    Override to define a custom stash capacity per entity.

    Override to define a custom stash capacity per entity. If not defined, the default akka.persistence.typed.stash-capacity will be used.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  39. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  40. def tagsFor(state: State, event: Event): Set[String]

    Return tags to store for the given event and state, the tags can then be used in persistence query.

    Return tags to store for the given event and state, the tags can then be used in persistence query. The state passed to the tagger allows for toggling a tag with one event but keep all events after it tagged based on a property or the type of the state.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  41. def tagsFor(event: Event): Set[String]

    Return tags to store for the given event, the tags can then be used in persistence query.

    Return tags to store for the given event, the tags can then be used in persistence query.

    If State) is overriden this method is ignored.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
  42. def toString(): String
    Definition Classes
    AnyRef → Any
  43. def transformMessages[Outer](matcher: PartialFunction[Outer, Command])(implicit arg0: ClassTag[Outer]): Behavior[Outer]

    Transform the incoming messages by placing a funnel in front of the wrapped Behavior: the supplied PartialFunction decides which message to pull in (those that it is defined at) and may transform the incoming message to place them into the wrapped Behavior’s type hierarchy.

    Transform the incoming messages by placing a funnel in front of the wrapped Behavior: the supplied PartialFunction decides which message to pull in (those that it is defined at) and may transform the incoming message to place them into the wrapped Behavior’s type hierarchy. Signals are not transformed.

    Example:

    val b: Behavior[Number] =
      Behaviors
        .receive[String] { (ctx, msg) =>
          println(msg)
          Behaviors.same
        }
        .transformMessages[Number] {
          case b: BigDecimal => s"BigDecimal($b)"
          case i: BigInt     => s"BigInteger($i)"
          // all other kinds of Number will be `unhandled`
        }

    The ClassTag for Outer ensures that only messages of this class or a subclass thereof will be intercepted. Other message types (e.g. a private protocol) will bypass the interceptor and be continue to the inner behavior untouched.

    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toBehaviorDecorators[Command] performed by method BehaviorDecorators in akka.actor.typed.Behavior.
    Definition Classes
    BehaviorDecorators
  44. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  45. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  46. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  47. def withEventPublishing: Boolean

    Override and return false to disable events being published to the system event stream as akka.persistence.typed.PublishedEvent after they have been persisted.

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

    (Since version 9)

  2. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toStringFormat[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

  3. def snapshotSelectionCriteria: SnapshotSelectionCriteria

    Override and define the snapshot selection criteria used by this actor instead of the default.

    Override and define the snapshot selection criteria used by this actor instead of the default. By default the most recent snapshot is used, and the remaining state updates are recovered by replaying events from the sequence number up until which the snapshot reached.

    You may configure the behavior to skip replaying snapshots completely, in which case the recovery will be performed by replaying all events -- which may take a long time.

    Definition Classes
    EventSourcedOnCommandWithReplyBehavior
    Annotations
    @deprecated
    Deprecated

    (Since version 2.6.5) override recovery instead

  4. def [B](y: B): (ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State], B)
    Implicit
    This member is added by an implicit conversion from ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] toArrowAssoc[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Inherited from EventSourcedOnCommandWithReplyBehavior[Command, Event, State]

Inherited from DeferredBehavior[Command]

Inherited from Behavior[Command]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion BehaviorDecorators fromReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] to BehaviorDecorators[Command]

Inherited by implicit conversion any2stringadd fromReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] to any2stringadd[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]]

Inherited by implicit conversion StringFormat fromReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] to StringFormat[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]]

Inherited by implicit conversion Ensuring fromReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] to Ensuring[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]]

Inherited by implicit conversion ArrowAssoc fromReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State] to ArrowAssoc[ReplicatedEventSourcedOnCommandWithReplyBehavior[Command, Event, State]]

Ungrouped