# Hierarchy For Package com.google.appengine.api.channel

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - - com.google.appengine.api.channel.IChannelServiceFactoryProvider
  - com.google.appengine.api.channel.ChannelMessage
  - com.google.appengine.api.channel.ChannelPresence
  - com.google.appengine.api.channel.ChannelServiceFactory
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.lang.RuntimeException
        - com.google.appengine.api.channel.ChannelFailureException

## Interface Hierarchy

- com.google.appengine.api.channel.ChannelService
- com.google.appengine.api.channel.IChannelServiceFactory