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<?php
namespace Elastica\Query;
use Elastica\Exception\InvalidException;
/**
* DisMax query
*
* @category Xodoa
* @package Elastica
* @author Hung Tran <oohnoitz@gmail.com>
* @link http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-dis-max-query.html
*/
class DisMax extends AbstractQuery
{
/**
* Adds a query to the current object
*
* @param \Elastica\Query\AbstractQuery|array $args Query
* @return \Elastica\Query\DisMax
* @throws \Elastica\Exception\InvalidException If not valid query
*/
public function addQuery($args)
{
if ($args instanceof AbstractQuery) {
$args = $args->toArray();
}
if (!is_array($args)) {
throw new InvalidException('Invalid parameter. Has to be array or instance of Elastica\Query\AbstractQuery');
}
return $this->addParam('queries', $args);
}
/**
* Set boost
*
* @param float $boost
* @return \Elastica\Query\DisMax
*/
public function setBoost($boost)
{
return $this->setParam('boost', $boost);
}
/**
* Sets tie breaker to multiplier value to balance the scores between lower and higher scoring fields.
*
* If not set, defaults to 0.0
*
* @param float $tieBreaker
* @return \Elastica\Query\DisMax
*/
public function setTieBreaker($tieBreaker = 0.0)
{
return $this->setParam('tie_breaker', $tieBreaker);
}
}
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