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<?php
namespace Elastica\Query;
use Elastica\Query as BaseQuery;
/**
* Runs the child query with an estimated hits size, and out of the hit docs, aggregates it into parent docs.
*
* @category Xodoa
* @package Elastica
* @author Wu Yang <darkyoung@gmail.com>
* @link http://www.elasticsearch.org/guide/reference/query-dsl/top-children-query.html
*/
class TopChildren extends AbstractQuery
{
/**
* Construct topChildren query
*
* @param string|\Elastica\Query|\Elastica\Query\AbstractQuery $query
* @param string $type Parent document type
*/
public function __construct($query, $type = null)
{
$this->setQuery($query);
$this->setType($type);
}
/**
* Sets query object
*
* @param string|\Elastica\Query|\Elastica\Query\AbstractQuery $query
* @return \Elastica\Query\TopChildren
*/
public function setQuery($query)
{
$query = BaseQuery::create($query);
$data = $query->toArray();
return $this->setParam('query', $data['query']);
}
/**
* Set type of the parent document
*
* @param string $type Parent document type
* @return \Elastica\Query\TopChildren Current object
*/
public function setType($type)
{
return $this->setParam('type', $type);
}
}
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