TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend Class Reference

Inheritance diagram for TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend:

Public Member Functions
	set ($entryIdentifier, $data, array $tags=[], $lifetime=null)
	get ($entryIdentifier)
	has ($entryIdentifier)
	remove ($entryIdentifier)
	findIdentifiersByTag ($tag)
	flush ()
	flushByTag ($tag)
	collectGarbage ()
Public Member Functions inherited from TYPO3\CMS\Core\Cache\Backend\AbstractBackend
	__construct ($context, array $options=[])
	setCache (\TYPO3\CMS\Core\Cache\Frontend\FrontendInterface $cache)
	setDefaultLifetime ($defaultLifetime)

Protected Attributes
	$entries = []
	$tagsAndEntries = []
Protected Attributes inherited from TYPO3\CMS\Core\Cache\Backend\AbstractBackend
	$cache
	$cacheIdentifier
	$context
	$defaultLifetime = 3600

Additional Inherited Members
Public Attributes inherited from TYPO3\CMS\Core\Cache\Backend\AbstractBackend
const	DATETIME_EXPIRYTIME_UNLIMITED = '9999-12-31T23:59:59+0000'
const	UNLIMITED_LIFETIME = 0
Protected Member Functions inherited from TYPO3\CMS\Core\Cache\Backend\AbstractBackend
	calculateExpiryTime ($lifetime=null)

Detailed Description

A caching backend which stores cache entries during one script run.

This file is a backport from FLOW3

Definition at line 23 of file TransientMemoryBackend.php.

Member Function Documentation

collectGarbage()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::collectGarbage

(

)

Does nothing

Returns

void

Implements TYPO3\CMS\Core\Cache\Backend\BackendInterface.

Definition at line 154 of file TransientMemoryBackend.php.

findIdentifiersByTag()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::findIdentifiersByTag

(

$tag

)

Finds and returns all cache entry identifiers which are tagged by the specified tag.

Parameters

string

$tag

The tag to search for

Returns

array An array with identifiers of all matching entries. An empty array if no entries matched

Implements TYPO3\CMS\Core\Cache\Backend\TaggableBackendInterface.

Definition at line 112 of file TransientMemoryBackend.php.

Referenced by TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend\flushByTag().

flush()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::flush

(

)

Removes all cache entries of this cache.

Returns

void

Implements TYPO3\CMS\Core\Cache\Backend\BackendInterface.

Definition at line 127 of file TransientMemoryBackend.php.

flushByTag()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::flushByTag

(

$tag

)

Removes all cache entries of this cache which are tagged by the specified tag.

Parameters

string

$tag

The tag the entries must have

Returns

void

Implements TYPO3\CMS\Core\Cache\Backend\TaggableBackendInterface.

Definition at line 140 of file TransientMemoryBackend.php.

References TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend\findIdentifiersByTag().

get()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::get

(

$entryIdentifier

)

Loads data from the cache.

Parameters

string

$entryIdentifier

An identifier which describes the cache entry to load

Returns

mixed The cache entry's content as a string or FALSE if the cache entry could not be loaded

Implements TYPO3\CMS\Core\Cache\Backend\BackendInterface.

Definition at line 65 of file TransientMemoryBackend.php.

has()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::has

(

$entryIdentifier

)

Checks if a cache entry with the specified identifier exists.

Parameters

string

$entryIdentifier

An identifier specifying the cache entry

Returns

bool TRUE if such an entry exists, FALSE if not

Implements TYPO3\CMS\Core\Cache\Backend\BackendInterface.

Definition at line 77 of file TransientMemoryBackend.php.

remove()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::remove

(

$entryIdentifier

)

Removes all cache entries matching the specified identifier.

Parameters

string

$entryIdentifier

Specifies the cache entry to remove

Returns

bool TRUE if the entry could be removed or FALSE if no entry was found

Implements TYPO3\CMS\Core\Cache\Backend\BackendInterface.

Definition at line 89 of file TransientMemoryBackend.php.

set()

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::set	(		$entryIdentifier,
			$data,
		array	$tags = [],
			$lifetime = null
	)

Saves data in the cache.

Parameters

string	$entryIdentifier	An identifier for this specific cache entry
string	$data	The data to be stored
array	$tags	Tags to associate with this cache entry
int	$lifetime	Lifetime of this cache entry in seconds. If NULL is specified, the default lifetime is used. "0" means unlimited liftime.

Returns

void

Exceptions

Implements TYPO3\CMS\Core\Cache\Backend\BackendInterface.

Definition at line 47 of file TransientMemoryBackend.php.

Member Data Documentation

$entries

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::$entries = []

protected

Definition at line 28 of file TransientMemoryBackend.php.

$tagsAndEntries

TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::$tagsAndEntries = []

protected

Definition at line 33 of file TransientMemoryBackend.php.