# Package io.vertx.groovy.core.eventbus

- Class Summary
  Class | Description
  --- | ---
  EventBus | A Vert.x event-bus is a light-weight distributed messaging system which allows different parts of your application, or different applications and services to communicate with each in a loosely coupled way.
  Message | Represents a message that is received from the event bus in a handler.
  MessageConsumer | An event bus consumer object representing a stream of message to an EventBus address that can be read from.
  MessageProducer | Represents a stream of message that can be written to.
  SendContext | Encapsulates a message being sent from Vert.x.