Documentation

Horde_Cache_Storage_Memoryoverlay extends Horde_Cache_Storage_Base
in package

A memory overlay for a cache backend. Caches results in PHP memory for the current access so the underlying cache backend is not continually hit.

Tags
author

Michael Slusarz slusarz@horde.org

category

Horde

copyright

2013-2017 Horde LLC

license

http://www.horde.org/licenses/lgpl21 LGPL 2.1

deprecated

Use Memory driver as first backend in stack driver instead.

Table of Contents

$_logger  : Horde_Log_Logger
Logger.
$_params  : array<string|int, mixed>
Parameters.
$_cache  : array<string|int, mixed>
The memory cache.
__construct()  : mixed
Constructor.
__serialize()  : array<string|int, mixed>
__unserialize()  : void
clear()  : mixed
Clears all data from the cache.
exists()  : bool
Checks if a given key exists in the cache, valid for the given lifetime.
expire()  : bool
Expire any existing data for the given key.
get()  : mixed
Retrieve cached data.
serialize()  : mixed
set()  : mixed
Store an object in the cache.
setLogger()  : mixed
Set the logging object.
unserialize()  : mixed
_initOb()  : mixed
Do initialization tasks.

Properties

$_logger

Logger.

protected Horde_Log_Logger $_logger

$_params

Parameters.

protected array<string|int, mixed> $_params = array()

$_cache

The memory cache.

private array<string|int, mixed> $_cache = array()

Methods

__construct()

Constructor.

public __construct([array<string|int, mixed> $params = array() ]) : mixed
Parameters
$params : array<string|int, mixed> = array()

Parameters:

  - backend: (Horde_Cache_Storage_Base) [REQUIRED] The master storage
             backend.
Return values
mixed

__serialize()

public __serialize() : array<string|int, mixed>
Return values
array<string|int, mixed>

__unserialize()

public __unserialize(array<string|int, mixed> $data) : void
Parameters
$data : array<string|int, mixed>
Return values
void

clear()

Clears all data from the cache.

public clear() : mixed
Return values
mixed

exists()

Checks if a given key exists in the cache, valid for the given lifetime.

public exists(mixed $key, mixed $lifetime) : bool
Parameters
$key : mixed

Cache key to check.

$lifetime : mixed

Lifetime of the key in seconds.

Return values
bool

Existence.

expire()

Expire any existing data for the given key.

public expire(mixed $key) : bool
Parameters
$key : mixed

Cache key to expire.

Return values
bool

Success or failure.

get()

Retrieve cached data.

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

Object ID to query.

$lifetime : mixed

Lifetime of the object in seconds.

Return values
mixed

Cached data, or false if none was found.

serialize()

public serialize() : mixed
Return values
mixed

set()

Store an object in the cache.

public set(mixed $key, mixed $data, mixed $lifetime) : mixed
Parameters
$key : mixed

Object ID used as the caching key.

$data : mixed

Data to store in the cache.

$lifetime : mixed

Object lifetime - i.e. the time before the data becomes available for garbage collection. If 0 will not be GC'd.

Return values
mixed

setLogger()

Set the logging object.

public setLogger(Horde_Log_Logger $logger) : mixed
Parameters
$logger : Horde_Log_Logger

Log object.

Return values
mixed

unserialize()

public unserialize(mixed $data) : mixed
Parameters
$data : mixed
Return values
mixed

_initOb()

Do initialization tasks.

protected _initOb() : mixed
Return values
mixed

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