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
.
Father of all children created by this interface.
Father of all children created by this interface.
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
.
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.
Interface implemented by ActorSystem and AkkaContext, the only two places from which you can get fresh actors.