Prado\Caching\TDirectoryCacheDependency::setDirectory PHP Method

    public function setDirectory($directory)
    {
        if (($path = realpath($directory)) === false || !is_dir($path)) {
            throw new TInvalidDataValueException('directorycachedependency_directory_invalid', $directory);
        }
        $this->_directory = $path;
        $this->_timestamps = $this->generateTimestamps($path);
    }