SystemSleepListener (Java SE 9 & JDK 9 )
Keywords: java.awt.desktop.SystemSleepListener interface

Module java.desktop
Package java.awt.desktop

## Interface SystemSleepListener

- All Superinterfaces:
    `EventListener`, `SystemEventListener`

      public interface SystemSleepListener
      extends SystemEventListener

  Implementors receive notification as the system is entering sleep, and after the system wakes. This notification is useful for disconnecting from network services prior to sleep, or re-establishing a connection if the network configuration has changed during sleep.
  Since:
    9

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `systemAboutToSleep​(SystemSleepEvent e)` | Called when the system is about to sleep.
    `void` | `systemAwoke​(SystemSleepEvent e)` | Called after the system has awoken from sleeping.

- - ### Method Detail

    - #### systemAboutToSleep

          void systemAboutToSleep​(SystemSleepEvent e)

      Called when the system is about to sleep. Note: This message may not be delivered prior to the actual system sleep, and may be processed after the corresponding wake has occurred.
      Parameters:
        `e` - the system sleep event

    - #### systemAwoke

          void systemAwoke​(SystemSleepEvent e)

      Called after the system has awoken from sleeping.
      Parameters:
        `e` - the system sleep event