Create new actor as child of this context with the given name, which must not be null, empty or start with “$”.
Create new actor as child of this context with the given name, which must
not be null, empty or start with “$”. If the given name is already in use,
and InvalidActorNameException is thrown.
See Props for details on how to obtain a Props object.
When invoked on ActorSystem, this method sends a message to the guardian
actor and blocks waiting for a reply, see akka.actor.creation-timeout in
the reference.conf.
Create new actor as child of this context and give it an automatically generated name (currently similar to base64-encoded integer count, reversed and with “$” prepended, may change in the future).
Create new actor as child of this context and give it an automatically generated name (currently similar to base64-encoded integer count, reversed and with “$” prepended, may change in the future).
See Props for details on how to obtain a Props object.
When invoked on ActorSystem, this method sends a message to the guardian
actor and blocks waiting for a reply, see akka.actor.creation-timeout in
the reference.conf.
Changes the Actor's behavior to become the new 'Receive' (PartialFunction[Any, Unit]) handler.
Changes the Actor's behavior to become the new 'Receive' (PartialFunction[Any, Unit]) handler. Puts the behavior on top of the hotswap stack. If "discardOld" is true, an unbecome will be issued prior to pushing the new behavior to the stack
Returns all supervised children; this method returns a view onto the internal collection of children.
Returns all supervised children; this method returns a view onto the
internal collection of children. Targeted lookups should be using
actorFor instead for performance reasons:
val badLookup = context.children find (_.path.name == "kid") // should better be expressed as: val goodLookup = context.actorFor("kid")
Returns the dispatcher (MessageDispatcher) that is used for this Actor.
Returns the dispatcher (MessageDispatcher) that is used for this Actor. Importing this member will place a implicit MessageDispatcher in scope.
Father of all children created by this interface.
Father of all children created by this interface.
Returns the supervising parent ActorRef.
Retrieve the Props which were used to create this actor.
Gets the current receive timeout When specified, the receive method should be able to handle a 'ReceiveTimeout' message.
Clears the receive timeout, i.
Clears the receive timeout, i.e. deactivates this feature.
Returns the sender 'ActorRef' of the current message.
Defines the default timeout for an initial receive invocation.
Defines the default timeout for an initial receive invocation. When specified, the receive function should be able to handle a 'ReceiveTimeout' message. 1 millisecond is the minimum supported timeout.
Stop the actor pointed to by the given ActorRef; this is an asynchronous operation, i.
Stop the actor pointed to by the given ActorRef; this is
an asynchronous operation, i.e. involves a message send.
When invoked on ActorSystem for a top-level actor, this
method sends a message to the guardian actor and blocks waiting for a reply,
see akka.actor.creation-timeout in the reference.conf.
The system that the actor belongs to.
The system that the actor belongs to. Importing this member will place a implicit MessageDispatcher in scope.
Reverts the Actor behavior to the previous one in the hotswap stack.
Unregisters this actor as Monitor for the provided ActorRef.
Unregisters this actor as Monitor for the provided ActorRef.
the provided ActorRef
Registers this actor as a Monitor for the provided ActorRef.
Registers this actor as a Monitor for the provided ActorRef.
the provided ActorRef
Java API: Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Java API: Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Example:
public class MyActor extends UntypedActor { public void onReceive(Object msg) throws Exception { ... final List<String> path = new ArrayList<String>(); path.add(".."); path.add("myBrother"); path.add("myNephew"); final ActorRef target = context().actorFor(path); ... } }
For maximum performance use a collection with efficient head & tail operations.
Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Example:
class MyActor extends Actor { def receive = { case msg => ... val target = context.actorFor(Seq("..", "myBrother", "myNephew")) ... } }
For maximum performance use a collection with efficient head & tail operations.
Look-up an actor by path represented as string.
Look-up an actor by path represented as string.
Absolute URIs like akka://appname/user/actorA are looked up as described
for look-ups by actorOf(ActorPath).
Relative URIs like /service/actorA/childB are looked up relative to the
root path of the ActorSystem containing this factory and as
described for look-ups by actorOf(Iterable[String]).
Relative URIs like myChild/grandChild or ../myBrother are looked up
relative to the current context as described for look-ups by
actorOf(Iterable[String])
Look-up an actor by path; if it does not exist, returns a reference to the dead-letter mailbox of the ActorSystem.
Look-up an actor by path; if it does not exist, returns a reference to
the dead-letter mailbox of the ActorSystem. If the path
point to an actor which is not local, no attempt is made during this
call to verify that the actor it represents does exist or is alive; use
watch(ref) to be notified of the target’s termination, which is also
signaled if the queried path cannot be resolved.
Construct an ActorSelection from the given path, which is parsed for wildcards (these are replaced by regular expressions internally).
Construct an ActorSelection from the given path, which is parsed for wildcards (these are replaced by regular expressions internally). No attempt is made to verify the existence of any part of the supplied path, it is recommended to send a message and gather the replies in order to resolve the matching set of actors.
The actor context - the view of the actor cell from the actor. Exposes contextual information for the actor and the current message.
There are several possibilities for creating actors (see Props for details on
props):Where no name is given explicitly, one will be automatically generated.