TYPO3扩展库域模型中的虚拟属性？

namespace Vendor\Extension\Domain\Model;

use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;

class Person extends AbstractEntity
{
    /**
     * @var string
     */
    protected $firstName = '';

    /**
     * @var string
     */
    protected $lastName = '';

    /**
     * @return string
     */
    public function getFirstName()
    {
        return $this->firstName;
    }

    /**
     * @param string $firstName
     */
    public function setFirstName($firstName)
    {
        $this->firstName = $firstName;
    }

    /**
     * @return string
     */
    public function getLastName()
    {
        return $this->lastName;
    }

    /**
     * @param string $lastName
     */
    public function setLastName($lastName)
    {
        $this->lastName = $lastName;
    }

    /**
     * @return string
     * @TYPO3\CMS\Extbase\Annotation\ORM\Transient
     */
    public function getFullName()
    {
        return $this->firstName . ' ' . $this->lastName;
    }
}

namespace Vendor\Extension\Controller;

use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
use Vendor\Extension\Domain\Model\Person;

class PersonController extends ActionController
{
    public function showAction(Person $person)
    {
        $this->view->assign('person', $person);
    }
}

<f:layout name="Default" />

<f:section name="content">
    <h1>Person Details</h1>
    <p>Full Name: {person.fullName}</p>
</f:section>