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/CakePHP 3.8

Class CacheRegistry

An object registry for cache engines.

Used by Cake\Cache\Cache to load and manage cache engines.

Cake\Core\ObjectRegistry implements Countable, IteratorAggregate
Extended by Cake\Cache\CacheRegistry
Namespace: Cake\Cache
Location: Cache/CacheRegistry.php

Inherited Properties

Method Summary

Method Detail

_create()source protected

_create( string|Cake\Cache\CacheEngine $class , string $alias , array $config )

Create the cache engine instance.

Part of the template method for Cake\Core\ObjectRegistry::load()

Parameters

string|Cake\Cache\CacheEngine $class
The classname or object to make.
string $alias
The alias of the object.
array $config
An array of settings to use for the cache engine.

Returns

Cake\Cache\CacheEngine
The constructed CacheEngine class.

Throws

RuntimeException
when an object doesn't implement the correct interface.

_resolveClassName()source protected

_resolveClassName( string $class )

Resolve a cache engine classname.

Part of the template method for Cake\Core\ObjectRegistry::load()

Parameters

string $class
Partial classname to resolve.

Returns

string|false
Either the correct classname or false.

_throwMissingClassError()source protected

_throwMissingClassError( string $class , string $plugin )

Throws an exception when a cache engine is missing.

Part of the template method for Cake\Core\ObjectRegistry::load()

Parameters

string $class
The classname that is missing.
string $plugin
The plugin the cache is missing in.

Throws

BadMethodCallException

unload()source public

unload( string $name )

Remove a single adapter from the registry.

Parameters

string $name
The adapter name.

Overrides

Cake\Core\ObjectRegistry::unload()

Methods inherited from Cake\Core\ObjectRegistry

__debugInfo()source public

__debugInfo( )

Debug friendly object properties.

Returns

array

__get()source public

__get( string $name )

Provide public read access to the loaded objects

Parameters

string $name
Name of property to read

Returns

mixed

__isset()source public

__isset( string $name )

Provide isset access to _loaded

Parameters

string $name
Name of object being checked.

Returns

boolean

__set()source public

__set( string $name , mixed $object )

Sets an object.

Parameters

string $name
Name of a property to set.
mixed $object
Object to set.

__unset()source public

__unset( string $name )

Unsets an object.

Parameters

string $name
Name of a property to unset.

_checkDuplicate()source protected

_checkDuplicate( string $name , array $config )

Check for duplicate object loading.

If a duplicate is being loaded and has different configuration, that is bad and an exception will be raised.

An exception is raised, as replacing the object will not update any references other objects may have. Additionally, simply updating the runtime configuration is not a good option as we may be missing important constructor logic dependent on the configuration.

Parameters

string $name
The name of the alias in the registry.
array $config
The config data for the new instance.

Throws

RuntimeException
When a duplicate is found.

count()source public

count( )

Returns the number of loaded objects.

Returns

integer

Implementation of

Countable::count()

get()source public

get( string $name )

Get loaded object instance.

Parameters

string $name
Name of object.

Returns

object|null
Object instance if loaded else null.

getIterator()source public

getIterator( )

Returns an array iterator.

Returns

ArrayIterator

Implementation of

IteratorAggregate::getIterator()

has()source public

has( string $name )

Check whether or not a given object is loaded.

Parameters

string $name
The object name to check for.

Returns

boolean
True is object is loaded else false.

load()source public

load( string $objectName , array $config = [] )

Loads/constructs an object instance.

Will return the instance in the registry if it already exists. If a subclass provides event support, you can use $config['enabled'] = false to exclude constructed objects from being registered for events.

Using Cake\Controller\Controller::$components as an example. You can alias an object by setting the 'className' key, i.e.,

public $components = [
  'Email' => [
    'className' => '\App\Controller\Component\AliasedEmailComponent'
  ];
];

All calls to the Email component would use AliasedEmail instead.

Parameters

string $objectName
The name/class of the object to load.
array $config optional []
Additional settings to use when loading the object.

Returns

mixed

Throws

Exception
If the class cannot be found.

loaded()source public

loaded( )

Get the list of loaded objects.

Returns

string[]
List of object names.

normalizeArray()source public

normalizeArray( array $objects )

Normalizes an object array, creates an array that makes lazy loading easier

Parameters

array $objects
Array of child objects to normalize.

Returns

array
Array of normalized objects.

reset()source public

reset( )

Clear loaded instances in the registry.

If the registry subclass has an event manager, the objects will be detached from events as well.

Returns


$this

set()source public

set( string $objectName , object $object )

Set an object directly into the registry by name.

If this collection implements events, the passed object will be attached into the event manager

Parameters

string $objectName
The name of the object to set in the registry.
object $object
instance to store in the registry

Returns


$this

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Licensed under the MIT License.
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https://api.cakephp.org/3.8/class-Cake.Cache.CacheRegistry.html