Package com.google.common.eventbus

Class DeadEvent

  • @Beta
public class DeadEvent
extends java.lang.Object
    Wraps an event that was posted, but which had no subscribers and thus could not be delivered.

    Subscribing a DeadEvent handler is useful for debugging or logging, as it can detect misconfigurations in a system's event distribution.

    Since:
    10.0

    • Constructor Summary

      Constructors 
      Constructor Description
      DeadEvent​(java.lang.Object source, java.lang.Object event)
      Creates a new DeadEvent.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object getEvent()
      Returns the wrapped, 'dead' event, which the system was unable to deliver to any registered handler.
      java.lang.Object getSource()
      Returns the object that originated this event (not the object that originated the wrapped event).

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • DeadEvent

        public DeadEvent​(java.lang.Object source,
                 java.lang.Object event)
        Creates a new DeadEvent.
        Parameters:
        source - object broadcasting the DeadEvent (generally the EventBus).
        event - the event that could not be delivered.

    • Method Detail

      • getSource

        public java.lang.Object getSource()
        Returns the object that originated this event (not the object that originated the wrapped event). This is generally an EventBus.
        Returns:
        the source of this event.

      • getEvent

        public java.lang.Object getEvent()
        Returns the wrapped, 'dead' event, which the system was unable to deliver to any registered handler.
        Returns:
        the 'dead' event that could not be delivered.