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Interface sun.server.misc.Observable

public interface Observable

extends Object

addObserver(Observer)

Adds an observer to the observer list.

deleteObserver(Observer)

Deletes an observer from the observer list.

deleteObservers()

Deletes observers from the observer list.

notifyObservers()

Notifies all observers if an observable change occurs.

notifyObservers(Object)

Notifies all observers of the specified observable change which occurred.

  public abstract void addObserver(Observer o)

Adds an observer to the observer list.

Parameters:

o - the observer to be added

  public abstract void deleteObserver(Observer o)

Deletes an observer from the observer list.

Parameters:

o - the observer to be deleted

  public abstract void notifyObservers()

Notifies all observers if an observable change occurs.

  public abstract void notifyObservers(Object arg)

Notifies all observers of the specified observable change which occurred.

Parameters:

arg - what is being notified

  public abstract void deleteObservers()

Deletes observers from the observer list.

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