MediaWiki\Cache\BacklinkCache Class Reference

Class for fetching backlink lists, approximate backlink counts and partitions. More...

Public Member Functions
	__construct (ServiceOptions $options, LinksMigration $linksMigration, WANObjectCache $wanCache, HookContainer $hookContainer, IConnectionProvider $dbProvider, LoggerInterface $logger, PageReference $page)
	Create a new BacklinkCache.
	getCascadeProtectedLinkPages ()
	Get a PageIdentity iterator for cascade-protected template/file use backlinks.
	getLinkPages (string $table, $startId=false, $endId=false, $max=INF)
	Get the backlinks for a given table.
	getNumLinks ( $table)
	Get the approximate number of backlinks.
	getPage ()
	hasLinks ( $table)
	Check if there are any backlinks.
	partition ( $table, $batchSize)
	Partition the backlinks into batches.

Public Attributes
const	CONSTRUCTOR_OPTIONS

Detailed Description

Class for fetching backlink lists, approximate backlink counts and partitions.

This is a shared cache.

Instances of this class should typically be fetched with the method ::getBacklinkCache() from the BacklinkCacheFactory service.

Ideally you should only get your backlinks from here when you think there is some advantage in caching them. Otherwise, it's just a waste of memory.

Definition at line 63 of file BacklinkCache.php.

Constructor & Destructor Documentation

__construct()

MediaWiki\Cache\BacklinkCache::__construct	(	ServiceOptions	$options,
		LinksMigration	$linksMigration,
		WANObjectCache	$wanCache,
		HookContainer	$hookContainer,
		IConnectionProvider	$dbProvider,
		LoggerInterface	$logger,
		PageReference	$page )

Create a new BacklinkCache.

Parameters

ServiceOptions	$options
LinksMigration	$linksMigration
WANObjectCache	$wanCache
HookContainer	$hookContainer
IConnectionProvider	$dbProvider
LoggerInterface	$logger
PageReference	$page	Page to create a backlink cache for

Definition at line 129 of file BacklinkCache.php.

References MediaWiki\Config\ServiceOptions\assertRequiredOptions().

Member Function Documentation

getCascadeProtectedLinkPages()

MediaWiki\Cache\BacklinkCache::getCascadeProtectedLinkPages

(

)

Get a PageIdentity iterator for cascade-protected template/file use backlinks.

Returns

Iterator<PageIdentity>

Since

1.37

Definition at line 527 of file BacklinkCache.php.

getLinkPages()

MediaWiki\Cache\BacklinkCache::getLinkPages	(	string	$table,
			$startId = false,
			$endId = false,
			$max = INF )

Get the backlinks for a given table.

Cached in process memory only.

Parameters

string	$table
int | bool	$startId
int | bool	$endId
int | float	$max	Integer, or INF for no max

Returns

Iterator<PageIdentity>

Since

1.37

Definition at line 174 of file BacklinkCache.php.

getNumLinks()

MediaWiki\Cache\BacklinkCache::getNumLinks

(

$table

)

Get the approximate number of backlinks.

Parameters

string

$table

Returns

int

Definition at line 375 of file BacklinkCache.php.

References getDB().

getPage()

MediaWiki\Cache\BacklinkCache::getPage

(

)

Since

1.37

Returns

PageReference

Definition at line 152 of file BacklinkCache.php.

hasLinks()

MediaWiki\Cache\BacklinkCache::hasLinks

(

$table

)

Check if there are any backlinks.

Only use the process cache, since the WAN cache is potentially stale (T368006).

Parameters

string

$table

Returns

bool

Definition at line 354 of file BacklinkCache.php.

partition()

MediaWiki\Cache\BacklinkCache::partition	(		$table,
			$batchSize )

Partition the backlinks into batches.

Returns an array giving the start and end of each range. The first batch has a start of false, and the last batch has an end of false.

Parameters

string	$table	The links table name
int	$batchSize

Returns

array

Definition at line 413 of file BacklinkCache.php.

References getDB().

Member Data Documentation

CONSTRUCTOR_OPTIONS

const MediaWiki\Cache\BacklinkCache::CONSTRUCTOR_OPTIONS

Initial value:

= [
        MainConfigNames::UpdateRowsPerJob,
    ]

Access: internal

Used by ServiceWiring.php

Definition at line 67 of file BacklinkCache.php.

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

• includes/cache/BacklinkCache.php