public function __construct()
{
$this->root = new Composite("Root");
$n1 = new Composite("Composite 1");
$n1->add(new Leaf("Composite1 -> Leaf1"));
$n1->add(new Leaf("Composite1 -> Leaf2"));
$this->root->add($n1);
$n2 = new Composite("Composite2");
$n2->add(new Leaf("Composite2 -> Leaf1"));
$n2->add(new Leaf("Composite2 -> Leaf2"));
$n2->add(new Leaf("Composite2 -> Leaf3"));
$this->root->add($n2);
$this->root->add(new Leaf("Root -> Leaf1"));
$this->root->operation();
}
public function testComposite()
{
$root = new Composite();
$root->doSomething();
$branch = new Composite();
$leaf = new Leaf();
$root->add($branch);
$branch->add($leaf);
$this->display($root);
}
public static function main()
{
$leaf1 = new Leaf('first leaf');
$leaf2 = new Leaf('second leaf');
$composite = new Composite();
$composite->add($leaf1);
$composite->add($leaf2);
$composite->operate();
$composite->remove($leaf2);
$composite->operate();
$composite->remove($leaf1);
$leaf1 = null;
$leaf2 = null;
$composite = null;
}
// определяет поведение примитивных объектов в композиции;
class Leaf extends Component
{
public function add(Component $c)
{
print "Cannot add to a leaf";
}
public function remove(Component $c)
{
print "Cannot remove from a leaf";
}
public function display()
{
print_r($this->name);
}
}
// Create a tree structure
$root = new Composite("root");
$root->add(new Leaf("Leaf A"));
$root->add(new Leaf("Leaf B"));
$comp = new Composite("Composite X");
$comp->add(new Leaf("Leaf XA"));
$comp->add(new Leaf("Leaf XB"));
$root->add($comp);
$root->add(new Leaf("Leaf C"));
// Add and remove a leaf
$leaf = new Leaf("Leaf D");
$root->add($leaf);
$root->remove($leaf);
// Recursively display tree
$root->display();
class ConcreteComponent implements ComponentInterface
{
protected $name;
public function __construct($name)
{
$this->name = $name;
}
public function operation()
{
echo '[' . $this->name . '] operation done';
}
}
class Composite implements ComponentInterface
{
protected $components = array();
public function add(ComponentInterface $component)
{
$this->components[] = $component;
}
public function operation()
{
foreach ($this->components as $component) {
$component->operation();
}
}
}
$composite = new Composite();
$composite->add(new ConcreteComponent('FirstComponent'));
$composite->add(new ConcreteComponent('SecondComponent'));
$composite->add(new ConcreteComponent('ThirdComponent'));
$composite->operation();
{
return $this->name;
}
public function add(Component $Component)
{
throw new ComponentException("I can't append child to myself");
}
public function getChild($index)
{
throw new ComponentException("Child not exists");
}
public function operation()
{
print "I am leaf '{$this->name}' <br >";
}
public function remove($index)
{
throw new ComponentException("Child not exists");
}
public function getChildren()
{
return array();
}
}
$composite = new Composite();
$composite->add(new Leaf('First'));
$composite->add(new Leaf('Second'));
$composite->add(new Leaf('Third'));
$composite->add(new Leaf('Fourth'));
$composite->add(new Leaf('Fifth'));
$composite->operation();
