Observable.java

/*
 * Copyright (c) 2015 Rendszergazda.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 */
package airportsimulation.utils;

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author tothm
 */
public class Observable {

    List<Observer> observers;

    public Observable() {
        observers = new ArrayList<>();
    }

    public void attach(Observer observer) {
        observers.add(observer);
    }

    public void notifyObservers() {
        for (Observer o : observers) {
            o.update(this);
        }
    }
}