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<?php
namespace MatthiasMullie\Scrapbook\Buffered\Utils;
use MatthiasMullie\Scrapbook\Adapters\Collections\MemoryStore as MemoryStoreCollection;
/**
* A collection implementation for Buffer.
*
* @author Matthias Mullie <[email protected]>
* @copyright Copyright (c) 2014, Matthias Mullie. All rights reserved
* @license LICENSE MIT
*/
class BufferCollection extends MemoryStoreCollection
{
* @var Buffer
protected $cache;
* @param string $name
public function __construct(Buffer $cache, $name)
parent::__construct($cache, $name);
}
* Check if a key existed in local storage, but is now expired.
* Because our local buffer is also just a real cache, expired items will
* just return nothing, which will lead us to believe no such item exists in
* that local cache, and we'll reach out to the real cache (where the value
* may not yet have been expired because that may have been part of an
* uncommitted write)
* So we'll want to know when a value is in local cache, but expired!
* @param string $key
* @return bool
public function expired($key)
if (false !== $this->get($key)) {
// returned a value, clearly not yet expired
return false;
// a known item, not returned by get, is expired
return array_key_exists($key, $this->cache->items);
matthiasmullie /
scrapbook
