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<?php
namespace Elastica\Filter;
/**
* Missing Filter
*
* @category Xodoa
* @package Elastica
* @author Maciej Wiercinski <maciej@wiercinski.net>
* @link http://www.elasticsearch.org/guide/reference/query-dsl/missing-filter.html
*/
class Missing extends AbstractFilter
{
/**
* Construct missing filter
*
* @param string $field OPTIONAL
*/
public function __construct($field = '')
{
if (strlen($field)) {
$this->setField($field);
}
}
/**
* Set field
*
* @param string $field
* @return \Elastica\Filter\Missing
*/
public function setField($field)
{
return $this->setParam('field', (string) $field);
}
}
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