TYPO3.Flow

With the current implementation of introductions / intertype declarations it is -like in most other AOP frameworks - only possible to introduce interfaces. However, it would be very handy being able to introduce properties along with some methods.

A very common use case would be introducing a new property along with a getter and a setter method:

/**
 * @entity
 * @scope prototype
 */
class BonusCustomerDetails {

  /**
    * @var string
    */
   protected $bonusCode;

   public function getBonusCode() {
       return $this->bonusCode;
   }

   public function setBonusCode($bonusCode) {
      $this->bonusCode = $bonuscode;
   }
}

This property + methods could be introduced into the Customer class by using a new annotation:

/**
 * @mixin F3\Bar\Domain\Model\Customer
 * @entity
 * @scope prototype
 */
class BonusCustomerDetails {

  /**
    * @var string
    */
   protected $bonusCode;

   public function getBonusCode() {
       return $this->bonusCode;
   }

   public function setBonusCode($bonusCode) {
      $this->bonusCode = $bonuscode;
   }
}

The @mixin annotation would implicitly generate a new aspect which implements around advices for the getter and setter method. Additionally a new property will be introduced into the Customer class which refers to the BonusCustomerDetails. The implementation of the around advice now simply refers to the original methods within the BonusCustomerDetails.