<?php

//copyright Lawrence Truett and FluffyCat.com 2005, all rights reserved

  include_once('BookMediator.php');

  abstract class BookColleague {

    private $mediator;

    function __construct($mediator_in) {
      $this->mediator = $mediator_in;
    }

    function getMediator() {return $this->mediator;}

    function changed($changingClassIn) {
      getMediator()->titleChanged($changingClassIn);
    }

  }

?>