Cache Class Reference

Inheritance diagram for Cache:

Public Member Functions
	__construct (\Magento\Framework\Cache\FrontendInterface $cache, \Magento\Framework\Data\Collection\Db\FetchStrategyInterface $fetchStrategy, $cacheIdPrefix='', array $cacheTags=[], $cacheLifetime=null, SerializerInterface $serializer=null)
	fetchAll (Select $select, array $bindParams=[])

Protected Member Functions
	_getSelectCacheId ($select)

Protected Attributes
	$_cacheIdPrefix = ''
	$_cacheTags = []
	$_cacheLifetime = null

Detailed Description

Retrieve collection data from cache, fail over to another fetch strategy, if cache does not exist yet

Definition at line 15 of file Cache.php.

Constructor & Destructor Documentation

__construct()

__construct	(	\Magento\Framework\Cache\FrontendInterface	$cache,
		\Magento\Framework\Data\Collection\Db\FetchStrategyInterface	$fetchStrategy,
			$cacheIdPrefix = '',
		array	$cacheTags = [],
			$cacheLifetime = null,
		SerializerInterface	$serializer = null
	)

Constructor

Parameters

\Magento\Framework\Cache\FrontendInterface	$cache
\Magento\Framework\Data\Collection\Db\FetchStrategyInterface	$fetchStrategy
string	$cacheIdPrefix
array	$cacheTags
int | bool | null	$cacheLifetime
SerializerInterface | null	$serializer

Definition at line 57 of file Cache.php.

      {
        $this->_cache = $cache;
        $this->_fetchStrategy = $fetchStrategy;
        $this->_cacheIdPrefix = $cacheIdPrefix;
        $this->_cacheTags = $cacheTags;
        $this->_cacheLifetime = $cacheLifetime;
        $this->serializer = $serializer ?: ObjectManager::getInstance()->get(SerializerInterface::class);
    }

Member Function Documentation

_getSelectCacheId()

_getSelectCacheId (   $select )

protected

Determine cache identifier based on select query

Parameters

\Magento\Framework\DB\Select | string

$select

Returns

string

Definition at line 100 of file Cache.php.

    {
        return $this->_cacheIdPrefix . md5((string)$select);
    }

fetchAll()

fetchAll	(	Select	$select,
		array	$bindParams = []
	)

{Retrieve all records

Parameters

Select	$select
array	$bindParams

Returns

array

}

Implements FetchStrategyInterface.

Definition at line 76 of file Cache.php.

    {
        $cacheId = $this->_getSelectCacheId($select);
        $result = $this->_cache->load($cacheId);
        if ($result) {
            $result = $this->serializer->unserialize($result);
        } else {
            $result = $this->_fetchStrategy->fetchAll($select, $bindParams);
            $this->_cache->save(
                $this->serializer->serialize($result),
                $cacheId,
                $this->_cacheTags,
                $this->_cacheLifetime
            );
        }
        return $result;
    }

Field Documentation

$_cacheIdPrefix

$_cacheIdPrefix = ''

protected

Definition at line 30 of file Cache.php.

$_cacheLifetime

$_cacheLifetime = null

protected

Definition at line 40 of file Cache.php.

$_cacheTags

$_cacheTags = []

protected

Definition at line 35 of file Cache.php.

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The documentation for this class was generated from the following file:

• vendor/magento/framework/Data/Collection/Db/FetchStrategy/Cache.php