Package akka.cluster.ddata.typed.javadsl

Class DistributedData

java.lang.Object

akka.cluster.ddata.typed.javadsl.DistributedData

All Implemented Interfaces:

Extension

public abstract class DistributedData
extends java.lang.Object
implements Extension

Akka extension for convenient configuration and use of the Replicator. Configuration settings are defined in the akka.cluster.ddata section, see reference.conf.

This is using the same underlying Replicator instance as DistributedData and that means that typed and classic actors can share the same data.

This class is not intended for user extension other than for test purposes (e.g. stub implementation). More methods may be added in the future and that may break such implementations.

Constructor Summary

Constructors

Constructor	Description
DistributedData()

Method Summary

Modifier and Type	Method	Description
static T	apply(ActorSystem<?> system)
static DistributedData	createExtension(ActorSystem<?> system)
static boolean	equals(java.lang.Object other)
static DistributedData	get(ActorSystem<?> system)
static int	hashCode()
static ExtensionId<T>	id()
abstract ActorRef<Replicator.Command>	replicator()	ActorRef of the Replicator.
abstract SelfUniqueAddress	selfUniqueAddress()
static <A,B extends ReplicatedData> Behavior<A>	withReplicatorMessageAdapter(java.util.function.Function<ReplicatorMessageAdapter<A,B>,Behavior<A>> factory)	When interacting with the DistributedData.replicator from an actor the ReplicatorMessageAdapter provides convenient methods that adapts the response messages to the requesting actor's message protocol.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DistributedData

public DistributedData()

Method Detail

get

public static DistributedData get(ActorSystem<?> system)

createExtension

public static DistributedData createExtension(ActorSystem<?> system)

withReplicatorMessageAdapter

public static <A,B extends ReplicatedData> Behavior<A> withReplicatorMessageAdapter(java.util.function.Function<ReplicatorMessageAdapter<A,B>,Behavior<A>> factory)

When interacting with the DistributedData.replicator from an actor the ReplicatorMessageAdapter provides convenient methods that adapts the response messages to the requesting actor's message protocol.

One ReplicatorMessageAdapter instance can be used for a given ReplicatedData type, e.g. an OrSet. Interaction with several Keys can be used via the same adapter but they must all be of the same ReplicatedData type. For interaction with several different ReplicatedData types, e.g. an OrSet and a GCounter, an adapter can be created for each type.

*Warning*: A ReplicatorMessageAdapter instance is not thread-safe and must only be used from a single actor It must not be accessed from threads other than the ordinary actor message processing thread, such as CompletionStage callbacks. It must not be shared between several actor instances.

Parameters:

factory - Factory of the Behavior for the actor that is using the ReplicatorMessageAdapter

apply

public static final T apply(ActorSystem<?> system)

hashCode

public static final int hashCode()

equals

public static final boolean equals(java.lang.Object other)

id

public static ExtensionId<T> id()

replicator

public abstract ActorRef<Replicator.Command> replicator()

ActorRef of the Replicator.

See Also:

DistributedData.withReplicatorMessageAdapter

selfUniqueAddress

public abstract SelfUniqueAddress selfUniqueAddress()