protected function getAuthenticationService()
    {
        if ($this->authenticationService === null) {
            $this->authenticationService = new AuthenticationService($this->getStorage());
        }
        
        return $this->authenticationService;
    }
protected function getAuthenticationService()
    {
        if ($this->authenticationService === null) {
            $this->authenticationService = new AuthenticationService($this->getStorage());
        }
        
        return $this->authenticationService;
    }
protected function getAuthenticationService ( ) { if ( $ this -> authenticationService === null ) { $ this -> authenticationService = new AuthenticationService ( $ this -> getStorage ( ) ) ; } return $ this -> authenticationService ; }
Retrieve AuthenticationService instance

@return \Zend\Authentication\AuthenticationService
Retrieve AuthenticationService instance