PubSub$

java.lang.Object
- akka.actor.typed.ExtensionId<PubSub>
- - akka.actor.typed.pubsub.PubSub$

```
public class PubSub$
extends ExtensionId<PubSub>
```
Registry for Topics. Keeps one topic actor instance of each requested topic name so that they can be shared between all subscribers in the same actor system.
Note that manually spawned Topic actors will not appear in the registry.

Field Summary

Fields
Modifier and Type Field Description

static PubSub$ MODULE$
Static reference to the singleton instance of this Scala object.

Constructor Summary

Constructors
Constructor Description

PubSub$()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PubSub`	`createExtension(ActorSystem<?> system)`	Create the extension, will be invoked at most one time per actor system where the extension is registered.
`PubSub`	`get(ActorSystem<?> system)`

Methods inherited from class akka.actor.typed.ExtensionId
apply, equals, hashCode, id

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - MODULE$
```
public static final PubSub$ MODULE$
```
    Static reference to the singleton instance of this Scala object.
- Constructor Detail
  - PubSub$
```
public PubSub$()
```
- Method Detail
  - createExtension
```
public PubSub createExtension(ActorSystem<?> system)
```
    Description copied from class: ExtensionId
    
    Create the extension, will be invoked at most one time per actor system where the extension is registered.
    
    Specified by:
    
    createExtension in class ExtensionId<PubSub>
  - get
```
public PubSub get(ActorSystem<?> system)
```