Jelix 1.8.8

redis_extCacheDriver
in package
implements jICacheDriver

Tags
subpackage

cache_plugin

author

Yannick Le Guédart

contributor

Laurent Jouanneau

copyright

2009 Yannick Le Guédart, 2010-2017 Laurent Jouanneau

see
http://www.jelix.org
licence

http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public Licence, see LICENCE file

Interfaces, Classes and Traits

jICacheDriver
Interface for cache drivers.

Table of Contents

$automatic_cleaning_factor  : int
automatic cleaning process 0 means disabled, 1 means systematic cache cleaning of expired data (at each set or add call), greater values mean less frequent cleaning.
$enabled  : bool
active cache ?
$ttl  : bool
TTL used.
$key_prefix  : string
Key prefix to be added.
$key_prefix_flush_method  : mixed
method to flush the keys when key_prefix is used.
$profileName  : string
profil name used in the ini file.
$redis  : jRedis
__construct()  : mixed
constructor.
decrement()  : bool
decrement a specific data value by $var.
delete()  : bool
delete a specific data in the cache.
flush()  : bool
clear all data in the cache.
garbage()  : bool
remove from the cache data of which TTL was expired element with TTL expired already removed => Nothing to do because redis has an internal garbage mechanism.
get()  : mixed
read a specific data in the cache.
getRedis()  : jRedis
Returns the redis api.
increment()  : bool
increment a specific data value by $var.
replace()  : bool
replace a specific data value by $var.
set()  : bool
set a specific data in the cache.
esc()  : mixed
getUsedKey()  : mixed
unesc()  : mixed

Properties

$automatic_cleaning_factor

automatic cleaning process 0 means disabled, 1 means systematic cache cleaning of expired data (at each set or add call), greater values mean less frequent cleaning.

public int $automatic_cleaning_factor = 0
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$key_prefix

Key prefix to be added.

protected string $key_prefix = ''
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$key_prefix_flush_method

method to flush the keys when key_prefix is used.

protected mixed $key_prefix_flush_method = 'direct'

direct: uses SCAN and DEL, but it can take huge time jcacheredisworker: it stores the keys prefix to delete into a redis list named 'jcacheredisdelkeys'. You can use a script to launch a worker which pops from this list prefix of keys to delete, and delete them with SCAN/DEL redis commands. See the redisworker controller in the jelix module. event: send a jEvent. It's up to your application to respond to this event and to implement your prefered method to delete all keys.

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$profileName

profil name used in the ini file.

protected string $profileName
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Methods

__construct()

constructor.

public __construct(mixed $params) : mixed
Parameters
$params : mixed

driver parameters, written in the ini file

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Return values
mixed

decrement()

decrement a specific data value by $var.

public decrement(string $key[, mixed $decvalue = 1 ]) : bool
Parameters
$key : string

key used for storing data in the cache

$decvalue : mixed = 1

value used

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Return values
bool

false if failure

delete()

delete a specific data in the cache.

public delete(string $key) : bool
Parameters
$key : string

key used for storing data in the cache

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Return values
bool

false if failure

flush()

clear all data in the cache.

public flush() : bool

If key_prefix is set, only keys with that prefix will be removed. Note that in that case, it can result in a huge performance issue. See key_prefix_flush_method to configure the best method for your app and your server.

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Return values
bool

false if failure

garbage()

remove from the cache data of which TTL was expired element with TTL expired already removed => Nothing to do because redis has an internal garbage mechanism.

public garbage() : bool
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Return values
bool

get()

read a specific data in the cache.

public get(mixed $key) : mixed
Parameters
$key : mixed

key or array of keys used for storing data in the cache

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Return values
mixed

$data array of data or false if failure

increment()

increment a specific data value by $var.

public increment(string $key[, mixed $incvalue = 1 ]) : bool
Parameters
$key : string

key used for storing data in the cache

$incvalue : mixed = 1

value used

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Return values
bool

false if failure

replace()

replace a specific data value by $var.

public replace(string $key, mixed $var, int $ttl) : bool
Parameters
$key : string

key used for storing data in the cache

$var : mixed

data to replace

$ttl : int

data time expiration

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Return values
bool

false if failure

set()

set a specific data in the cache.

public set(string $key, mixed $value, int $ttl) : bool
Parameters
$key : string

key used for storing data

$value : mixed
$ttl : int

data time expiration

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Return values
bool

false if failure

esc()

protected esc(mixed $val) : mixed
Parameters
$val : mixed
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Return values
mixed

getUsedKey()

protected getUsedKey(mixed $key) : mixed
Parameters
$key : mixed
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Return values
mixed

unesc()

protected unesc(mixed $val) : mixed
Parameters
$val : mixed
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Return values
mixed

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