public function testMemento()
{
$originator = new Originator();
$caretaker = new Caretaker();
$originator->state = "On";
$caretaker->memento = $originator->createMemento();
$originator->state = "Off";
$originator->setMemento($caretaker->memento);
$this->assertEquals($originator->state, 'On');
}
private $_state = null;
public function getState()
{
return $this->_state;
}
public function setState($state)
{
$this->_state = $state;
}
public function createMemento()
{
return new Memento($this->_state);
}
public function setMemento($memento)
{
$this->_state = $memento->getState();
}
public function display()
{
echo "state = " . $this->_state . "<br/>";
}
}
$objOriginator = new Originator();
$objOriginator->setState(0);
$objOriginator->display();
$objCareTaker = new CareTaker();
$objCareTaker->setMemento($objOriginator->createMemento());
$objOriginator->setState(1);
$objOriginator->display();
$objOriginator->setMemento($objCareTaker->getMemento());
$objOriginator->display();
public function __construct()
{
$this->first = 'first';
$this->second = 'second';
$this->ct = new Caretaker();
$this->orig = new Originator();
$this->orig->setState($this->first);
$this->ct->addMemento($this->orig->createMemento());
$this->orig->setState($this->second);
$this->ct->addMemento($this->orig->createMemento());
$this->orig->setMemento($this->ct->getMemento(1));
echo $this->orig->state;
}
