cross-solution / YAWIK

        return $this->map;

    }

    public function extract($object)

    {

        $data = parent::extract($object);

        foreach ($this->map as $from => $to) {

            if (array_key_exists($from, $data)) {

                $data[$to] = $this->extractValue($to, $data[$from], $object);

                unset($data[$from]);

            }

        }

        return $data;

    }

    public function hydrate(array $data, $object)

    {

        return $data;

    }

    public function hydrate(array $data, $object)

    {

        foreach ($this->map as $to => $from) {

            if (array_key_exists($from, $data)) {

                $data[$to] = $this->hydrateValue($from, $data[$from], $data);

                unset($data[$from]);

            }

        }

        return parent::hydrate($data, $object);

    }

}