function bindSessionServiceEntity($sessionServiceEntity)
{
    if ($sessionServiceEntity != null) {
        $sessionServiceDto = new SessionServiceDto();
        $sessionServiceDto->setSessionServiceId($sessionServiceEntity->getSessionServiceId());
        $sessionServiceDto->setSession(bindSessionEntity($sessionServiceEntity->getSession()));
        $sessionServiceDto->setService(bindServiceEntity($sessionServiceEntity->getService()));
        return $sessionServiceDto;
    } else {
        return null;
    }
}