MediaWiki  REL1_24
ParserCache Class Reference
Collaboration diagram for ParserCache:

List of all members.

Public Member Functions

 get ($article, $popts, $useOutdated=false)
 Retrieve the ParserOutput from ParserCache.
 getDirty ($article, $popts)
 Retrieve the ParserOutput from ParserCache, even if it's outdated.
 getETag ($article, $popts)
 Provides an E-Tag suitable for the whole page.
 getKey ($article, $popts, $useOutdated=true)
 Generates a key for caching the given article considering the given parser options.
 save ($parserOutput, $page, $popts, $cacheTime=null, $revId=null)

Static Public Member Functions

static singleton ()
 Get an instance of this object.

Protected Member Functions

 __construct ($memCached)
 Setup a cache pathway with a given back-end storage mechanism.
 getOptionsKey ($article)
 getParserOutputKey ($article, $hash)

Private Attributes

MWMemcached $mMemc
 *

Detailed Description

Todo:
document

Definition at line 28 of file ParserCache.php.


Constructor & Destructor Documentation

ParserCache::__construct ( memCached) [protected]

Setup a cache pathway with a given back-end storage mechanism.

May be a memcached client or a BagOStuff derivative.

Parameters:
MWMemcached$memCached
Exceptions:
MWException

Definition at line 51 of file ParserCache.php.


Member Function Documentation

ParserCache::get ( article,
popts,
useOutdated = false 
)

Retrieve the ParserOutput from ParserCache.

false if not found or outdated.

Parameters:
Article$article
ParserOptions$popts
bool$useOutdated(default false)
Returns:
ParserOutput|bool False on failure

Definition at line 184 of file ParserCache.php.

ParserCache::getDirty ( article,
popts 
)

Retrieve the ParserOutput from ParserCache, even if it's outdated.

Parameters:
Article$article
ParserOptions$popts
Returns:
ParserOutput|bool False on failure

Definition at line 109 of file ParserCache.php.

ParserCache::getETag ( article,
popts 
)

Provides an E-Tag suitable for the whole page.

Note that $article is just the main wikitext. The E-Tag has to be unique to the whole page, even if the article itself is the same, so it uses the complete set of user options. We don't want to use the preference of a different user on a message just because it wasn't used in $article. For example give a Chinese interface to a user with English preferences. That's why we take into account *all* user options. (r70809 CR)

Parameters:
Article$article
ParserOptions$popts
Returns:
string

Definition at line 97 of file ParserCache.php.

ParserCache::getKey ( article,
popts,
useOutdated = true 
)

Generates a key for caching the given article considering the given parser options.

Note:
Which parser options influence the cache key is controlled via ParserOutput::recordOption() or ParserOptions::addExtraKey().
Used by Article to provide a unique id for the PoolCounter. It would be preferable to have this code in get() instead of having Article looking in our internals.
Todo:
Document parameter $useOutdated
Parameters:
Article$article
ParserOptions$popts
bool$useOutdated(default true)
Returns:
bool|mixed|string

Definition at line 133 of file ParserCache.php.

ParserCache::getOptionsKey ( article) [protected]
Parameters:
Article$article
Returns:
mixed|string

Definition at line 78 of file ParserCache.php.

ParserCache::getParserOutputKey ( article,
hash 
) [protected]
Parameters:
Article$article
string$hash
Returns:
mixed|string

Definition at line 63 of file ParserCache.php.

ParserCache::save ( parserOutput,
page,
popts,
cacheTime = null,
revId = null 
)
Parameters:
ParserOutput$parserOutput
WikiPage$page
ParserOptions$popts
string$cacheTimeTime when the cache was generated
int$revIdRevision ID that was parsed

Definition at line 246 of file ParserCache.php.

static ParserCache::singleton ( ) [static]

Get an instance of this object.

Returns:
ParserCache

Definition at line 35 of file ParserCache.php.

Referenced by CompareParserCache\execute(), ApiPurge\execute(), and RefreshLinksJob\runForTitle().


Member Data Documentation

MWMemcached ParserCache::$mMemc [private]

*

Definition at line 29 of file ParserCache.php.


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