Class UntypedPersistentActor

Persistent actor - can be used to implement command or eventsourcing.

Inheritance
object
ActorBase
Eventsourced
UntypedPersistentActor
ReceivePersistentActor
Implements
Inherited Members
Namespace: Akka.Persistence
Assembly: Akka.Persistence.dll
Syntax
public abstract class UntypedPersistentActor : Eventsourced, IInternalActor, IPersistentIdentity, IPersistenceStash, IWithUnboundedStash, IWithUnrestrictedStash, IActorStash, IRequiresMessageQueue<IUnboundedDequeBasedMessageQueueSemantics>, IPersistenceRecovery

Properties

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Context

TBD

Declaration
protected static IUntypedActorContext Context { get; }
Property Value
Type Description
IUntypedActorContext

Methods

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Become(UntypedReceive)

Changes the actor's behavior and replaces the current receive handler with the specified handler.

Declaration
protected void Become(UntypedReceive receive)
Parameters
Type Name Description
UntypedReceive receive

The new message handler.
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BecomeStacked(UntypedReceive)

Changes the actor's behavior and replaces the current receive handler with the specified handler. The current handler is stored on a stack, and you can revert to it by calling UnbecomeStacked() Please note, that in order to not leak memory, make sure every call to BecomeStacked(UntypedReceive) is matched with a call to UnbecomeStacked().

Declaration
protected void BecomeStacked(UntypedReceive receive)
Parameters
Type Name Description
UntypedReceive receive

The new message handler.
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OnCommand(object)

TBD

Declaration
protected abstract void OnCommand(object message)
Parameters
Type Name Description
object message

TBD
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OnRecover(object)

TBD

Declaration
protected abstract void OnRecover(object message)
Parameters
Type Name Description
object message

TBD
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Receive(object)

Processor for user defined messages.

Declaration
protected override bool Receive(object message)
Parameters
Type Name Description
object message

The message.
Returns
Type Description
bool

TBD
Overrides
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ReceiveCommand(object)

Command handler. Typically validates commands against current state - possibly by communicating with other actors. On successful validation, one or more events are derived from command and persisted.

Declaration
protected override sealed bool ReceiveCommand(object message)
Parameters
Type Name Description
object message

TBD
Returns
Type Description
bool

TBD
Overrides
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ReceiveRecover(object)

Recovery handler that receives persistent events during recovery. If a state snapshot has been captured and saved, this handler will receive a SnapshotOffer message followed by events that are younger than offer itself.

This handler must not have side-effects other than changing persistent actor state i.e. it should not perform actions that may fail, such as interacting with external services, for example.

If there is a problem with recovering the state of the actor from the journal, the error will be logged and the actor will be stopped.

Declaration
protected override sealed bool ReceiveRecover(object message)
Parameters
Type Name Description
object message

TBD
Returns
Type Description
bool

TBD
Overrides

Implements

Extension Methods