# Hierarchy For Package org.springframework.messaging.simp.broker

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.springframework.messaging.simp.broker.AbstractBrokerMessageHandler (implements org.springframework.context.ApplicationEventPublisherAware, org.springframework.messaging.MessageHandler, org.springframework.context.SmartLifecycle)
    - org.springframework.messaging.simp.broker.SimpleBrokerMessageHandler
  - org.springframework.messaging.simp.broker.AbstractSubscriptionRegistry (implements org.springframework.messaging.simp.broker.SubscriptionRegistry)
    - org.springframework.messaging.simp.broker.DefaultSubscriptionRegistry
  - java.util.EventObject (implements java.io.Serializable)
    - org.springframework.context.ApplicationEvent
      - org.springframework.messaging.simp.broker.BrokerAvailabilityEvent

## Interface Hierarchy

- org.springframework.messaging.simp.broker.SubscriptionRegistry