Package ru.vyarus.guicey.eventbus.service

Class EventSubscribersInfo

java.lang.Object

ru.vyarus.guicey.eventbus.service.EventSubscribersInfo

@Singleton
public class EventSubscribersInfo
extends Object

Holds registered event listeners. Will contain nothing if tracking disabled. Service registered in guice and may be injected directly (e.g. for unit tests).

Since:

12.10.2016

Constructor Summary

Constructors

Constructor	Description
EventSubscribersInfo(com.google.common.eventbus.EventBus eventbus)

Method Summary

Modifier and Type	Method	Description
Set<Class>	getListenedEvents()	May return not just event types, because method could listen for events abstract type or Object to receive all events.
Set<Object>	getListeners(Class<?> event)	NOTE: method may return not all listeners, because some methods may listen for a range of events (by base class or Object).
Set<Class>	getListenerTypes(Class<?> event)	NOTE: method may return not all listeners, because some methods may listen for a range of events (by base class or Object).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

EventSubscribersInfo

@Inject
public EventSubscribersInfo(com.google.common.eventbus.EventBus eventbus)

Method Details

getListenedEvents

public Set<Class> getListenedEvents()

May return not just event types, because method could listen for events abstract type or Object to receive all events.

Returns:

set of events with known subscribers or empty set

getListenerTypes

public Set<Class> getListenerTypes(Class<?> event)

NOTE: method may return not all listeners, because some methods may listen for a range of events (by base class or Object). Only direct subscriptions are tracked.

Parameters:

event - event class to get listeners for

Returns:

collection of classes listening for event type, or empty list

getListeners

public Set<Object> getListeners(Class<?> event)

NOTE: method may return not all listeners, because some methods may listen for a range of events (by base class or Object). Only direct subscriptions are tracked.

Parameters:

event - event class to get listeners for

Returns:

collection of instances listening for event type, or empty list