Class ilMemcache. More...

Inheritance diagram for ilMemcache:

Collaboration diagram for ilMemcache:

Public Member Functions

exists ($key)

set ($key, $serialized_value, $ttl=null)

get ($key)

delete ($key)

flush ()

getInstallationFailureReason ()

serialize ($value)

unserialize ($serialized_value)

getInfo ()

isValid ($key)

Checks whether the cache key is valid or not.This method exists only for legacy reasons and has only a real function in combination with XCache.

Parameters

string $key The key which should be checked.

Returns: bool True if the key is valid otherwise false.

More...

Public Member Functions inherited from ilGlobalCacheService

__construct ($service_id, $component)

unserialize ($serialized_value)

get ($key)

set ($key, $serialized_value, $ttl=null)

serialize ($value)

getServiceId ()

setServiceId ($service_id)

getComponent ()

setComponent ($component)

isActive ()

isInstallable ()

returnKey ($key)

getInfo ()

getInstallationFailureReason ()

exists ($key)

delete ($key)

flush ()

setServiceType ($service_type)

getServiceType ()

setValid ($key)

Declare a key as valid. More...

setInvalid ($key=null)

Set the key as invalid. More...

isValid ($key)

Checks whether the cache key is valid or not. More...

Protected Member Functions
	getMemcacheObject ()

	getActive ()

	getInstallable ()

Protected Member Functions inherited from ilGlobalCacheService
	getActive ()

	getInstallable ()

	getMemoryLimit ()

	getMinMemory ()

	checkMemory ()

Static Protected Attributes
static	$memcache_object

Static Protected Attributes inherited from ilGlobalCacheService
static	$active = array()

static	$installable = array()

Additional Inherited Members
Protected Attributes inherited from ilGlobalCacheService
	$current_time = 0

	$valid_keys = array()

	$service_id = ''

	$component = ''

	$service_type = ilGlobalCache::TYPE_STATIC

	$valid_key_hash = ''

Detailed Description

Class ilMemcache.

Author: Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Version: 1.0.0

Definition at line 12 of file class.ilMemcache.php.

Member Function Documentation

◆ delete()

ilMemcache::delete ( $key )

Parameters

$key

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 92 of file class.ilMemcache.php.

                                     {
                return $this->getMemcacheObject()->delete($this->returnKey($key));
        }

References getMemcacheObject(), and ilGlobalCacheService\returnKey().

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◆ exists()

ilMemcache::exists ( $key )

Parameters

$key

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 60 of file class.ilMemcache.php.

                                     {
                return $this->getMemcacheObject()->get($this->returnKey($key)) != null;
        }

References getMemcacheObject(), and ilGlobalCacheService\returnKey().

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◆ flush()

ilMemcache::flush ( )

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 100 of file class.ilMemcache.php.

                                {
                return $this->getMemcacheObject()->flush();
        }

References getMemcacheObject().

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◆ get()

ilMemcache::get ( $key )

Parameters

$key

Returns: mixed

Reimplemented from ilGlobalCacheService.

Definition at line 82 of file class.ilMemcache.php.

                                  {
                return $this->getMemcacheObject()->get($this->returnKey($key));
        }

References getMemcacheObject(), and ilGlobalCacheService\returnKey().

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◆ getActive()

ilMemcache::getActive ( )

protected

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 108 of file class.ilMemcache.php.

                                       {
                if ($this->getInstallable()) {
                        $stats = $this->getMemcacheObject()->getStats();
 
                        if (!is_array($stats)) {
                                return false;
                        }
 
                        foreach ($stats as $server) {
                                if ($server['pid'] > 0) {
                                        return true;
                                }
                        }
 
                        return false;
                }
 
                return false;
        }

References $server, getInstallable(), and getMemcacheObject().

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◆ getInfo()

ilMemcache::getInfo ( )

Returns: array

Reimplemented from ilGlobalCacheService.

Definition at line 176 of file class.ilMemcache.php.

                                  {
                if (self::isInstallable()) {
                        $return = array();
                        $return['__cache_info'] = $this->getMemcacheObject()->getStats();
                        foreach ($this->getMemcacheObject()->getAllKeys() as $key) {
                                $return[$key] = $this->getMemcacheObject()->get($key);
                        }
 
                        return $return;
                }
        }

References getMemcacheObject().

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◆ getInstallable()

ilMemcache::getInstallable ( )

protected

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 132 of file class.ilMemcache.php.

                                            {
                return class_exists('Memcached');
        }

Referenced by getActive().

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◆ getInstallationFailureReason()

ilMemcache::getInstallationFailureReason ( )

Returns: string

Reimplemented from ilGlobalCacheService.

Definition at line 140 of file class.ilMemcache.php.

                                                       {
                if ($this->getMemcacheObject() instanceof Memcached) {
                        $stats = $this->getMemcacheObject()->getStats();
 
                        if (!$stats[self::STD_SERVER . ':' . self::STD_PORT]['pid'] > 0) {
                                return 'No Memcached-Server available';
                        }
                }
 
                return parent::getInstallationFailureReason();
        }

References getMemcacheObject().

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◆ getMemcacheObject()

ilMemcache::getMemcacheObject ( )

protected

Returns: Memcached

Definition at line 50 of file class.ilMemcache.php.

                                               {
                return self::$memcache_object;
        }

References $memcache_object.

Referenced by delete(), exists(), flush(), get(), getActive(), getInfo(), getInstallationFailureReason(), and set().

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◆ isValid()

ilMemcache::isValid ( $key )

Checks whether the cache key is valid or not.This method exists only for legacy reasons and has only a real function in combination with XCache.

Parameters

string $key The key which should be checked.

Returns: bool True if the key is valid otherwise false.

Reimplemented from ilGlobalCacheService.

Definition at line 192 of file class.ilMemcache.php.

                                      {
                return true;
        }

◆ serialize()

ilMemcache::serialize ( $value )

Parameters

$value

Returns: mixed

Reimplemented from ilGlobalCacheService.

Definition at line 158 of file class.ilMemcache.php.

                                          {
                return serialize($value);
        }

References serialize().

Referenced by serialize().

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◆ set()

ilMemcache::set	(	$key,
		$serialized_value,
		$ttl = `null`
	)

Parameters

	$key
	$serialized_value
null \| int	$ttl

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 72 of file class.ilMemcache.php.

                                                                  {
                return $this->getMemcacheObject()->set($this->returnKey($key), $serialized_value, (int)$ttl);
        }

References getMemcacheObject(), and ilGlobalCacheService\returnKey().

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◆ unserialize()

ilMemcache::unserialize ( $serialized_value )

Parameters

$serialized_value

Returns: mixed

Reimplemented from ilGlobalCacheService.

Definition at line 168 of file class.ilMemcache.php.

                                                       {
                return unserialize($serialized_value);
        }

References unserialize().

Referenced by unserialize().

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Field Documentation

◆ $memcache_object

ilMemcache::$memcache_object

staticprotected

Definition at line 17 of file class.ilMemcache.php.

Referenced by getMemcacheObject().

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

Services/GlobalCache/classes/Memcache/class.ilMemcache.php

Public Member Functions

Protected Member Functions

Static Protected Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ delete()

◆ exists()

◆ flush()

◆ get()

◆ getActive()

◆ getInfo()

◆ getInstallable()

◆ getInstallationFailureReason()

◆ getMemcacheObject()

◆ isValid()

◆ serialize()

◆ set()

◆ unserialize()

Field Documentation

◆ $memcache_object