# Class AssociationChangeNotification

java.lang.Object
com.sun.nio.sctp.AssociationChangeNotification

All Implemented Interfaces:
  `Notification`

public abstract class AssociationChangeNotification extends Object implements Notification
Notification emitted when an association has either opened or closed.

Since:
  1.7

- ## Nested Class Summary

  Nested Classes
  Modifier and Type
  Class
  Description
  `static enum`
  `AssociationChangeNotification.AssocChangeEvent`
  Defines the type of change event that happened to the association.

- ## Constructor Summary

  Constructors
  Modifier
  Constructor
  Description
  `protected`
  `AssociationChangeNotification()`
  Initializes a new instance of this class.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `abstract Association`
  `association()`
  Returns the association that this notification is applicable to.
  `abstract AssociationChangeNotification.AssocChangeEvent`
  `event()`
  Returns the type of change event.

  ### Methods declared in class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### AssociationChangeNotification

    protected AssociationChangeNotification()
    Initializes a new instance of this class.

- ## Method Details

  - ### association

    public abstract Association association()
    Returns the association that this notification is applicable to.
    Specified by:
      `association` in interface `Notification`
    Returns:
      The association whose state has changed, or `null` if there is no association, that is CANT_START

  - ### event

    public abstract AssociationChangeNotification.AssocChangeEvent event()
    Returns the type of change event.
    Returns:
      The event