Accessors and mutators

controller-pattern.php

<?php

class MyController extends ControllerBase implements ControllerInterface {

  /**
   * @var MyClass1
   * Object of Class 1
   */
  protected $obj1;

  /**
   * @var MyClass2
   * Object of Class 2
   */
  protected $obj2;

  /**
   * @var MyClass3
   * Object of Class 3
   */
  protected $obj3;

  /**
   * Default constructor.
   *
   * @param MyClass1 object1
   * @param MyClass2 object2
   * @param MyClass3 object3
   */
  public function __construct(MyClass1 $object1, MyClass2 $object2, MyClass3 $object3) {
    $this->obj1 = object1;
    $this->obj2 = object2;
    $this->obj3 = object3;
  }

  /**
   * Accessor for obj1
   *
   * @return MyClass1
   *   The object
   */
  public function getObject1() {
    return $this->obj1;
  }

  /**
   * Business logic.
   */
  protected function businessLogic() {
    // Do stuff from class 1
    $this->getObject1()->methodClass1();
  }

}