Prado\Collections\TPagedMapIterator::__construct PHP Метод

    public function __construct(TMap $map, $startIndex, $count)
    {
        $this->_map = $map;
        $this->_index = 0;
        $this->_startIndex = $startIndex;
        if ($startIndex + $count > $map->getCount()) {
            $this->_count = $map->getCount() - $startIndex;
        } else {
            $this->_count = $count;
        }
        $this->_iterator = $map->getIterator();
    }