ProcessCacheLRU Class Reference

Class for process caching individual properties of expiring items. More...

Inheritance diagram for ProcessCacheLRU:

Collaboration diagram for ProcessCacheLRU:

Public Member Functions
	__construct ( $maxKeys)
	clear ( $keys=null)
	Clear one or several cache entries, or all cache entries. More...
	get ( $key, $prop)
	Get a property field for a cache entry. More...
	getSize ()
	Get cache size. More...
	has ( $key, $prop, $maxAge=0.0)
	Check if a property field exists for a cache entry. More...
	resize ( $maxKeys)
	Resize the maximum number of cache entries, removing older entries as needed. More...
	set ( $key, $prop, $value)
	Set a property field for a cache entry. More...

Protected Attributes
MapCacheLRU	$cache

Detailed Description

Class for process caching individual properties of expiring items.

When the key for an entire item is deleted, all properties for it are deleted

Deprecated:

Since 1.32 Use MapCacheLRU instead

Definition at line 32 of file ProcessCacheLRU.php.

Constructor & Destructor Documentation

__construct()

ProcessCacheLRU::__construct

(

$maxKeys

)

Parameters

int

$maxKeys

Maximum number of entries allowed (min 1).

Exceptions

UnexpectedValueException

When $maxCacheKeys is not an int or =< 0.

Definition at line 40 of file ProcessCacheLRU.php.

References cache.

Member Function Documentation

clear()

ProcessCacheLRU::clear

(

$keys = null

)

Clear one or several cache entries, or all cache entries.

Parameters

string | array | null

$keys

Returns

void

Definition at line 89 of file ProcessCacheLRU.php.

References $keys, and cache.

get()

ProcessCacheLRU::get	(		$key,
			$prop
	)

Get a property field for a cache entry.

This returns null if the property is not set. If the item is already set, it will be pushed to the top of the cache.

Parameters

string	$key
string	$prop

Returns

mixed

Definition at line 79 of file ProcessCacheLRU.php.

References cache.

Referenced by JobQueueGroup\queuesHaveJobs().

getSize()

ProcessCacheLRU::getSize

(

)

Get cache size.

Returns

int

Definition at line 108 of file ProcessCacheLRU.php.

References cache.

has()

ProcessCacheLRU::has	(		$key,
			$prop,
			$maxAge = 0.0
	)

Check if a property field exists for a cache entry.

Parameters

string	$key
string	$prop
float	$maxAge	Ignore items older than this many seconds (since 1.21)

Returns

bool

Definition at line 66 of file ProcessCacheLRU.php.

References cache.

resize()

ProcessCacheLRU::resize

(

$maxKeys

)

Resize the maximum number of cache entries, removing older entries as needed.

Parameters

int

$maxKeys

Returns

void

Exceptions

UnexpectedValueException

Definition at line 100 of file ProcessCacheLRU.php.

References cache.

set()

ProcessCacheLRU::set	(		$key,
			$prop,
			$value
	)

Set a property field for a cache entry.

This will prune the cache if it gets too large based on LRU. If the item is already set, it will be pushed to the top of the cache.

Parameters

string	$key
string	$prop
mixed	$value

Returns

void

Definition at line 54 of file ProcessCacheLRU.php.

References $value, and cache.

Referenced by JobQueueGroup\push().

Member Data Documentation

$cache

MapCacheLRU ProcessCacheLRU::$cache

protected

Definition at line 34 of file ProcessCacheLRU.php.

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

• includes/libs/ProcessCacheLRU.php