    /*
     * JBoss, the OpenSource J2EE webOS
     *
     * Distributable under LGPL license.
     * See terms of license at gnu.org.
     */
    package org.jboss.test.aop.bean;

    import org.jboss.aop.patterns.observable.Observer;
    import org.jboss.aop.patterns.observable.Subject;

    /**
     * A simple test of the Observerable aspect
     *
     * @author <a href="mailto:adrian@jboss.org">Adrian Brock</a>
     * @version $Revision: 22230 $
     */
    public class ObservableTester
    {
       public static void main(String args) throws Exception
       {
          // Create our pojos - nothing new here
          Temperature temperature = new Temperature();
          LogUtil logUtil = new LogUtil();

          // But look, we can cast them to our introductions
          Subject subject = (Subject) temperature;
          Observer observer = (Observer) logUtil;

          // And link them
          subject.addObserver(observer);

          // Now this logs the change
          temperature.setTemperature(10);
       }
    }