<?php
namespace DeliciousBrains\WPMDB\Container\DI\Cache;
use DeliciousBrains\WPMDB\Container\Doctrine\Common\Cache\Cache;
use DeliciousBrains\WPMDB\Container\Doctrine\Common\Cache\ClearableCache;
use DeliciousBrains\WPMDB\Container\Doctrine\Common\Cache\FlushableCache;
/**
* Simple implementation of a cache based on an array.
*
* This implementation can be used instead of Doctrine's ArrayCache for
* better performances (because simpler implementation).
*
* The code is based on Doctrine's ArrayCache provider:
* @see \Doctrine\Common\Cache\ArrayCache
* @link www.doctrine-project.org
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author David Abdemoulaie <dave@hobodave.com>
*/
class ArrayCache implements Cache, FlushableCache, ClearableCache
{
/**
* @var array
*/
private $data = [];
public function fetch($id)
{
return $this->contains($id) ? $this->data[$id] : \false;
}
public function contains($id)
{
// isset() is required for performance optimizations, to avoid unnecessary function calls to array_key_exists.
return isset($this->data[$id]) || \array_key_exists($id, $this->data);
}
public function save($id, $data, $lifeTime = 0)
{
$this->data[$id] = $data;
return \true;
}
public function delete($id)
{
unset($this->data[$id]);
return \true;
}
public function getStats()
{
return null;
}
public function flushAll()
{
$this->data = [];
return \true;
}
public function deleteAll()
{
return $this->flushAll();
}
}