Lang3 EventListenerSupport Sınıfı

Giriş

Şu satırı dahil ederiz

import org.apache.commons.lang3.event.EventListenerSupport;

Sınıfın içi şöyle

public class EventListenerSupport<L> implements Serializable {

  // [...]

  /**
   * The list used to hold the registered listeners. This list is
   * intentionally a thread-safe copy-on-write-array so that traversals over
   * the list of listeners will be atomic.
   */
  private List<L> listeners = new CopyOnWriteArrayList<>();

  // [...]
}

create metodu

Örnek

Şöyle yaparız

import java.awt.event.ActionListener;
import org.apache.commons.lang3.event.EventListenerSupport;

EventListenerSupport<ActionListener> actionListeners = EventListenerSupport.create
  (ActionListener.class);

public void someMethodThatFiresAction() {
  ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "somethingCool");
  actionListeners.fire().actionPerformed(e);
}