Observer.java :  » Aspect-oriented » dynaop » dynaop » observer » Java Open Source

package dynaop.observer;

/**
 * Observes a <code>Subject</code>.
 * 
 * @author Bob Lee (crazybob@crazybob.org)
 */
public interface Observer {
  
  /**
   * Notifies of change in the <code>Subject</code>.
   */
  void notify(Subject subject, Object argument);
}