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<?php
namespace Elastica\Filter;
use Elastica\Exception\InvalidException;
use Elastica\Param;
/**
* Abstract filter object. Should be extended by all filter types
*
* @category Xodoa
* @package Elastica
* @author Nicolas Ruflin <spam@ruflin.com>
* @link http://www.elasticsearch.org/guide/reference/query-dsl/
*/
abstract class AbstractFilter extends Param
{
/**
* Sets the filter cache
*
* @param boolean $cached Cached
* @return \Elastica\Filter\AbstractFilter
*/
public function setCached($cached = true)
{
return $this->setParam('_cache', (bool) $cached);
}
/**
* Sets the filter cache key
*
* @param string $cacheKey Cache key
* @throws \Elastica\Exception\InvalidException
* @return \Elastica\Filter\AbstractFilter
*/
public function setCacheKey($cacheKey)
{
$cacheKey = (string) $cacheKey;
if (empty($cacheKey)) {
throw new InvalidException('Invalid parameter. Has to be a non empty string');
}
return $this->setParam('_cache_key', (string) $cacheKey);
}
/**
* Sets the filter name
*
* @param string $name Name
* @return \Elastica\Filter\AbstractFilter
*/
public function setName($name)
{
return $this->setParam('_name', $name);
}
}
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