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<?php
declare(strict_types=1);
namespace ONGR\ElasticsearchDSL\Aggregation\Metric;
use ONGR\ElasticsearchDSL\Aggregation\AbstractAggregation;
/**
* Class CountCardinalityAggregation
*
* @link https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-cardinality-aggregation.html
* @package ONGR\ElasticsearchDSL\Aggregation\Metric
*/
class CountCardinalityAggregation extends AbstractAggregation
{
* CountAggregation constructor.
* @param $name
* @param null $field
public function __construct($name, $field = null)
parent::__construct($name);
$this->setField($field);
}
* @return array|\stdClass
protected function getArray()
$data = array_filter(
[
'field' => $this->getField(),
]
);
return $data;
* @return bool
protected function supportsNesting()
return false;
* @return string
public function getType()
return 'cardinality';