Can be overridden to intercept calls to postRestart
.
Can be overridden to intercept calls to postStop
.
Can be overridden to intercept calls to preRestart
.
Can be overridden to intercept calls to preStart
.
INTERNAL API.
Plugin API: asynchronously reads the highest stored sequence number for the
given persistenceId
.
Plugin API: asynchronously reads the highest stored sequence number for the
given persistenceId
.
persistent actor id.
hint where to start searching for the highest sequence number.
Plugin API: asynchronously replays persistent messages.
Plugin API: asynchronously replays persistent messages. Implementations replay
a message by calling replayCallback
. The returned future must be completed
when all messages (matching the sequence number bounds) have been replayed.
The future must be completed with a failure if any of the persistent messages
could not be replayed.
The replayCallback
must also be called with messages that have been marked
as deleted. In this case a replayed message's deleted
method must return
true
.
The channel ids of delivery confirmations that are available for a replayed
message must be contained in that message's confirms
sequence.
persistent actor id.
sequence number where replay should start (inclusive).
sequence number where replay should end (inclusive).
maximum number of messages to be replayed.
called to replay a single message. Can be called from any thread.
Stores the context for this actor, including self, and sender.
Stores the context for this actor, including self, and sender.
It is implicit to support operations such as forward
.
WARNING: Only valid within the Actor itself, so do not close over it and publish it to other threads!
akka.actor.ActorContext is the Scala API. getContext
returns a
akka.actor.UntypedActorContext, which is the Java API of the actor
context.
Get the mapped numeric id for the specified persistent actor or channel id
.
Get the mapped numeric id for the specified persistent actor or channel id
. Creates and
stores a new mapping if necessary.
User overridable callback: By default it calls preStart()
.
User overridable callback: By default it calls preStart()
.
the Throwable that caused the restart to happen
Is called right AFTER restart on the newly created Actor to allow reinitialization after an Actor crash.
User overridable callback.
User overridable callback.
Is called asynchronously after 'actor.stop()' is invoked. Empty default implementation.
User overridable callback: By default it disposes of all children and then calls postStop()
.
User overridable callback: By default it disposes of all children and then calls postStop()
.
the Throwable that caused the restart to happen
optionally the current message the actor processed when failing, if applicable
Is called on a crashed Actor right BEFORE it is restarted to allow clean up of resources before Actor is terminated.
User overridable callback.
User overridable callback.
Is called when an Actor is started. Actors are automatically started asynchronously when created. Empty default implementation.
This defines the initial actor behavior, it must return a partial function with the actor logic.
This defines the initial actor behavior, it must return a partial function with the actor logic.
The 'self' field holds the ActorRef for this actor.
The 'self' field holds the ActorRef for this actor.
Can be used to send messages to itself:
self ! message
The reference sender Actor of the last received message.
The reference sender Actor of the last received message.
Is defined if the message was sent from another Actor,
else deadLetters
in akka.actor.ActorSystem.
WARNING: Only valid within the Actor itself, so do not close over it and publish it to other threads!
User overridable definition the strategy to use for supervising child actors.
User overridable definition the strategy to use for supervising child actors.
User overridable callback.
User overridable callback.
Is called when a message isn't handled by the current behavior of the actor by default it fails with either a akka.actor.DeathPactException (in case of an unhandled akka.actor.Terminated message) or publishes an akka.actor.UnhandledMessage to the actor's system's akka.event.EventStream
A LevelDB store that can be shared by multiple actor systems. The shared store must be set for each actor system that uses the store via
SharedLeveldbJournal.setStore
. The shared LevelDB store is for testing only.