# Uses of Interface
org.apache.tapestry5.internal.structure.ComponentCallback

Packages that use ComponentCallback
Package
Description
org.apache.tapestry5.internal.structure
[INTERNAL USE ONLY] page structure implementation details; API subject to change.

- ## Uses of ComponentCallback in org.apache.tapestry5.internal.structure

  Classes in org.apache.tapestry5.internal.structure that implement ComponentCallback
  Modifier and Type
  Class
  Description
  `class`
  `AbstractComponentCallback`
  Base class for most implementations of `ComponentCallback`, used when there is an underlying `Event`.
  `class`
  `LifecycleNotificationComponentCallback`
  Implementation of `ComponentCallback` used for lifecycle notifications that do not have an event, and can therefore never be aborted.