# Package org.eclipse.jetty.util.component

- Interface Summary
  Interface | Description
  --- | ---
  Container.Listener | Listener.
  Destroyable | A Destroyable is an object which can be destroyed.
  Dumpable |
  LifeCycle | The lifecycle interface for generic components.
  LifeCycle.Listener | Listener.

- Class Summary
  Class | Description
  --- | ---
  AbstractLifeCycle | Basic implementation of the life cycle interface for components.
  AbstractLifeCycle.AbstractLifeCycleListener |
  AggregateLifeCycle | An AggregateLifeCycle is an `LifeCycle` implementation for a collection of contained beans.
  Container | Container.
  Container.Relationship | A Container event.
  FileDestroyable |
  FileNoticeLifeCycleListener | A LifeCycle Listener that writes state changes to a file.

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