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

Protected Attributes
array	$entries = array( )
array	$tagsAndEntries = array( )
‪Protected Attributes inherited from ‪TYPO3\CMS\Core\Cache\Backend\AbstractBackend
FrontendInterface	$cache
string	$cacheIdentifier
string	$context
int	$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
DateTime	calculateExpiryTime ($lifetime=null)

Detailed Description

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

Definition at line 24 of file TransientMemoryBackend.php.

Member Function Documentation

collectGarbage()

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

(

)

Does nothing

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

Definition at line 136 of file TransientMemoryBackend.php.

findIdentifiersByTag()

array 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 103 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.

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

Definition at line 114 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

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

Definition at line 125 of file TransientMemoryBackend.php.

References TYPO3\CMS\Webhooks\Message\$identifier, and TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend\findIdentifiersByTag().

get()

mixed 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 60 of file TransientMemoryBackend.php.

has()

bool 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 71 of file TransientMemoryBackend.php.

remove()

bool 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 82 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 lifetime.

Exceptions

Exception

‪if no cache frontend has been set.

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

Definition at line 43 of file TransientMemoryBackend.php.

Member Data Documentation

$entries

array TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::$entries = array( )

protected

Definition at line 28 of file TransientMemoryBackend.php.

$tagsAndEntries

array TYPO3\CMS\Core\Cache\Backend\TransientMemoryBackend::$tagsAndEntries = array( )

protected

Definition at line 32 of file TransientMemoryBackend.php.