EventBus (Couchbase JVM Core IO 2.0.0 API)

All Known Implementing Classes:

DefaultEventBus
```
public interface EventBus
```
The EventBus is the main demarcation line between internal behavior and external visibility.
All events happening inside the system (and those fed from the outside as well) are visible through the EventBus.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class EventBus.PublishResult
Signals if a publish call was successful and if not why.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`EventBus.PublishResult`	`publish(Event event)`	Try to publish an event.
`Mono<Void>`	`start()`	Starts the event bus if it hasn't been started yet.
`Mono<Void>`	`stop(Duration timeout)`	Stops the event bus if it hasn't been stopped already.
`EventSubscription`	`subscribe(Consumer<Event> consumer)`	Subscribes a `Consumer` to receive `Events`.
`void`	`unsubscribe(EventSubscription subscription)`	Unsubscribes the `Consumer` from this `EventBus`.

- Method Detail
  - publish
```
EventBus.PublishResult publish(Event event)
```
    Try to publish an event.
    
    Parameters:
    
    event - the event to publish.
    
    Returns:
    
    the EventBus.PublishResult of th event.
  - subscribe
```
EventSubscription subscribe(Consumer<Event> consumer)
```
    Subscribes a Consumer to receive Events.
    
    Parameters:
    
    consumer - the consumer which will receive events.
    
    Returns:
    
    a EventSubscription that can be used to unsubscribe.
  - unsubscribe
```
void unsubscribe(EventSubscription subscription)
```
    Unsubscribes the Consumer from this EventBus.
    
    Parameters:
    
    subscription - the subscription used.
  - start
```
Mono<Void> start()
```
    Starts the event bus if it hasn't been started yet.
  - stop
```
Mono<Void> stop(Duration timeout)
```
    Stops the event bus if it hasn't been stopped already.