<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Data;

use Magento\Framework\DB\QueryInterface;

/**
* Class SearchResultIterator
*/
class SearchResultIterator implements \Iterator
{
/**
* @var SearchResultInterface
*/
protected $searchResult;

/**
* @var QueryInterface
*/
protected $query;

/**
* @var array
*/
protected $current;

/**
* @var int
*/
protected $key = 0;

/**
* @param AbstractSearchResult $searchResult
* @param QueryInterface $query
*/
public function __construct(AbstractSearchResult $searchResult, QueryInterface $query)
{
$this->searchResult = $searchResult;
$this->query = $query;
}

/**
* @return array|mixed
*/
public function current()
{
return $this->current;
}

/**
* @return void
*/
public function next()
{
++$this->key;
$this->current = $this->searchResult->createDataObject($this->query->fetchItem());
}

/**
* @return int|mixed
*/
public function key()
{
return $this->key;
}

/**
* @return bool
*/
public function valid()
{
return !empty($this->current);
}

/**
* @return void
*/
public function rewind()
{
$this->current = null;
$this->key = 0;
$this->query->reset();
$this->next();
}
}