[Flow] Get all defined Roles in TYPO3 Flow 3.*

[Jan Greth]

Hello at all,

i have some Problems with the Security Changes since Flow 3.0
Till then i had something like:

/**
* @var \TYPO3\Flow\Security\Policy\RoleRepository
* @Flow\inject
*/
protected $roleRepository;

[...]
$allRoles = $this->roleRepository->findAll();
[...]

But since the Roles aren't stored in DB now - how can i get all Roles, 
defined in Policy.yaml, in my Controller?

Does anyone know how?

Bye, Jan