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<?php
namespace SMW\SQLStore\Lookup;
/**
* A simple interface for fetching a list from either a DB or being used as
* decorator to cache results
*
* @license GNU GPL v2+
* @since 2.2
*
* @author mwjames
*/
interface ListLookup {
/**
* @since 2.2
*
* @return array
*/
public function fetchList();
/**
* @since 2.2
*
* @return boolean
*/
public function isFromCache();
/**
* A unique identifier that can describe a specific lookup instance to
* distinguish it from other lookup's of the same list
*
* @since 2.2
*
* @return string
*/
public function getHash();
/**
* @since 2.2
*
* @return integer
*/
public function getTimestamp();
}
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