HTMLCacheUpdateJob Class Reference

Job to purge the cache for all pages that link to or use another page or file. More...

Inheritance diagram for HTMLCacheUpdateJob:

Collaboration diagram for HTMLCacheUpdateJob:

Public Member Functions
	__construct (Title $title, array $params)
	getDeduplicationInfo ()
	Subclasses may need to override this to make duplication detection work.
	run ()
	Run the job.
	workItemCount ()
Public Member Functions inherited from Job
	__construct ( $command, $title, $params=false)
	allowRetries ()
	getLastError ()
	getParams ()
	getQueuedTimestamp ()
	getReadyTimestamp ()
	getReleaseTimestamp ()
	getRequestId ()
	getRootJobParams ()
	getTitle ()
	getType ()
	hasExecutionFlag ( $flag)
	hasRootJobParams ()
	ignoreDuplicates ()
	Whether the queue should reject insertion of this job if a duplicate exists.
	insert ()
	Insert a single job into the queue.
	isRootJob ()
	teardown ( $status)
	Do any final cleanup after run(), deferred updates, and all DB commits happen.
	toString ()

Static Public Member Functions
static	newForBacklinks (Title $title, $table, $params=[])
Static Public Member Functions inherited from Job
static	batchInsert ( $jobs)
	Batch-insert a group of jobs into the queue.
static	factory ( $command, Title $title, $params=[])
	Create the appropriate object to handle a specific job.
static	newRootJobParams ( $key)
	Get "root job" parameters for a task.

Protected Member Functions
	invalidateTitles (array $pages)
Protected Member Functions inherited from Job
	addTeardownCallback ( $callback)
	setLastError ( $error)

Additional Inherited Members
Public Attributes inherited from Job
string	$command
array	$metadata = []
	Additional queue metadata.
array	$params
	Array of job parameters.
Protected Attributes inherited from Job
string	$error
	Text for error that occurred last.
int	$executionFlags = 0
	Bitfield of JOB_* class constants.
bool	$removeDuplicates
	Expensive jobs may set this to true.
callable[]	$teardownCallbacks = []
Title	$title

Detailed Description

Job to purge the cache for all pages that link to or use another page or file.

This job comes in a few variants:

• a) Recursive jobs to purge caches for backlink pages for a given title. These jobs have (recursive:true,table: set.
• b) Jobs to purge caches for a set of titles (the job title is ignored). These jobs have (pages:(<page ID>:(<namespace>,<title>),...) set.

Definition at line 38 of file HTMLCacheUpdateJob.php.

Constructor & Destructor Documentation

__construct()

HTMLCacheUpdateJob::__construct	(	Title	$title,
		array	$params )

Definition at line 39 of file HTMLCacheUpdateJob.php.

References Job\$params.

Member Function Documentation

getDeduplicationInfo()

HTMLCacheUpdateJob::getDeduplicationInfo

(

)

Subclasses may need to override this to make duplication detection work.

The resulting map conveys everything that makes the job unique. This is only checked if ignoreDuplicates() returns true, meaning that duplicate jobs are supposed to be ignored.

Returns

array Map of key/values

Since

1.21

Reimplemented from Job.

Definition at line 179 of file HTMLCacheUpdateJob.php.

invalidateTitles()

HTMLCacheUpdateJob::invalidateTitles ( array $pages )

protected

Parameters

array

$pages

Map of (page ID => (namespace, DB key)) entries

Definition at line 112 of file HTMLCacheUpdateJob.php.

References $batch, $urls, $wgPageLanguageUseDB, $wgUpdateRowsPerQuery, $wgUseFileCache, HTMLFileCache\clearFileCache(), DB_MASTER, TitleArray\newFromResult(), CdnCacheUpdate\purge(), wfGetDB(), and wfTimestampNow().

Referenced by run().

newForBacklinks()

static HTMLCacheUpdateJob::newForBacklinks ( Title $title, $table, $params = [] )

static

Parameters

Title	$title	Title to purge backlink pages from
string	$table	Backlink table name
array	$params	Additional job parameters

Returns

HTMLCacheUpdateJob

Definition at line 59 of file HTMLCacheUpdateJob.php.

References Job\$params, Job\$title, Job\newRootJobParams(), and true.

Referenced by HTMLCacheUpdate\doUpdate().

run()

HTMLCacheUpdateJob::run

(

)

Run the job.

Returns

bool Success

Reimplemented from Job.

Definition at line 71 of file HTMLCacheUpdateJob.php.

References $t, Job\$title, $wgUpdateRowsPerJob, $wgUpdateRowsPerQuery, Job\getRootJobParams(), invalidateTitles(), BacklinkJobUtils\partitionBacklinkJob(), and JobQueueGroup\singleton().

workItemCount()

HTMLCacheUpdateJob::workItemCount

(

)

Returns

int Number of actually "work items" handled in this job

See also

$wgJobBackoffThrottling

Since

1.23

Reimplemented from Job.

Definition at line 193 of file HTMLCacheUpdateJob.php.

---

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

• includes/jobqueue/jobs/HTMLCacheUpdateJob.php