Classes, traits, and interfaces - 8.9.x - drupal

Introduction to classes

A lot of the PHP code in Drupal is object oriented (OO), making use of PHP classes, interfaces, and traits. See the Objected-oriented programming conventions for more information.

See also

Objected-oriented programming conventions

File

core/core.api.php, line 1511

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
MemoryBackendTest		class	Drupal\KernelTests\Core\Cache	core/tests/Drupal/KernelTests/Core/Cache/MemoryBackendTest.php	Unit test of the memory cache backend using the generic cache unit test base.
MemoryCache		class	Drupal\Core\Cache\MemoryCache	core/lib/Drupal/Core/Cache/MemoryCache/MemoryCache.php	Defines a memory cache implementation.		4	4
MemoryCacheInterface		interface	Drupal\Core\Cache\MemoryCache	core/lib/Drupal/Core/Cache/MemoryCache/MemoryCacheInterface.php	Defines an interface for memory cache implementations.	1	11
MemoryCounterBackend		class	Drupal\Core\Cache	core/lib/Drupal/Core/Cache/MemoryCounterBackend.php	Defines a memory cache implementation that counts set and get calls.		1
MemoryStorage		class	Drupal\Core\Config	core/lib/Drupal/Core/Config/MemoryStorage.php	Provides an in memory configuration storage.	1	5
MemoryStorage		class	Drupal\Core\KeyValueStore	core/lib/Drupal/Core/KeyValueStore/MemoryStorage.php	Defines a default key/value store implementation.
MemoryStorageTest		class	Drupal\KernelTests\Core\KeyValueStore	core/tests/Drupal/KernelTests/Core/KeyValueStore/MemoryStorageTest.php	Tests the key-value memory storage.
MemoryStorageTest		class	Drupal\KernelTests\Core\Config\Storage	core/tests/Drupal/KernelTests/Core/Config/Storage/MemoryStorageTest.php	Tests MemoryStorage operations.
Menu		class	Drupal\system\Entity	core/modules/system/src/Entity/Menu.php	Defines the Menu configuration entity class.		16
Menu		class	Drupal\system\Plugin\migrate\source	core/modules/system/src/Plugin/migrate/source/Menu.php	Menu source from database.
MenuAccessControlHandler		class	Drupal\system	core/modules/system/src/MenuAccessControlHandler.php	Defines the access control handler for the menu entity type.
MenuAccessControlHandlerTest		class	Drupal\Tests\system\Kernel	core/modules/system/tests/src/Kernel/MenuAccessControlHandlerTest.php	@coversDefaultClass \Drupal\system\MenuAccessControlHandler @group system
MenuAccessTest		class	Drupal\Tests\system\Functional\Menu	core/modules/system/tests/src/Functional/Menu/MenuAccessTest.php	Tests the route access checks on menu links.
MenuActiveTrail		class	Drupal\Core\Menu	core/lib/Drupal/Core/Menu/MenuActiveTrail.php	Provides the default implementation of the active menu trail service.		1	2
MenuActiveTrailInterface		interface	Drupal\Core\Menu	core/lib/Drupal/Core/Menu/MenuActiveTrailInterface.php	Defines an interface for the active menu trail service.	1	2
MenuActiveTrailsCacheContext		class	Drupal\Core\Cache\Context	core/lib/Drupal/Core/Cache/Context/MenuActiveTrailsCacheContext.php	Defines the MenuActiveTrailsCacheContext service.			2
MenuActiveTrailTest		class	Drupal\Tests\Core\Menu	core/tests/Drupal/Tests/Core/Menu/MenuActiveTrailTest.php	Tests the active menu trail service.
MenuBlockPostUpdateTest		class	Drupal\Tests\system\Functional\Update	core/modules/system/tests/src/Functional/Update/MenuBlockPostUpdateTest.php	Tests updating menu blocks configuration.
MenuCacheTagsTest		class	Drupal\Tests\menu_ui\Functional	core/modules/menu_ui/tests/src/Functional/MenuCacheTagsTest.php	Tests the Menu and Menu Link entities' cache tags.
MenuController		class	Drupal\menu_ui\Controller	core/modules/menu_ui/src/Controller/MenuController.php	Returns responses for Menu routes.
MenuController		class	Drupal\menu_link_content\Controller	core/modules/menu_link_content/src/Controller/MenuController.php	Defines a route controller for a form for menu link content entity creation.
MenuDeleteForm		class	Drupal\menu_ui\Form	core/modules/menu_ui/src/Form/MenuDeleteForm.php	Defines a confirmation form for deletion of a custom menu.
MenuForm		class	Drupal\menu_ui	core/modules/menu_ui/src/MenuForm.php	Base form for menu edit forms.
MenuHalJsonAnonTest		class	Drupal\Tests\system\Functional\Hal	core/modules/system/tests/src/Functional/Hal/MenuHalJsonAnonTest.php	@group hal
MenuHalJsonBasicAuthTest		class	Drupal\Tests\system\Functional\Hal	core/modules/system/tests/src/Functional/Hal/MenuHalJsonBasicAuthTest.php	@group hal
MenuHalJsonCookieTest		class	Drupal\Tests\system\Functional\Hal	core/modules/system/tests/src/Functional/Hal/MenuHalJsonCookieTest.php	@group hal
MenuInterface		interface	Drupal\system	core/modules/system/src/MenuInterface.php	Provides an interface defining a menu entity.	1	5
MenuJsonAnonTest		class	Drupal\Tests\system\Functional\Rest	core/modules/system/tests/src/Functional/Rest/MenuJsonAnonTest.php	@group rest
MenuJsonBasicAuthTest		class	Drupal\Tests\system\Functional\Rest	core/modules/system/tests/src/Functional/Rest/MenuJsonBasicAuthTest.php	@group rest
MenuJsonCookieTest		class	Drupal\Tests\system\Functional\Rest	core/modules/system/tests/src/Functional/Rest/MenuJsonCookieTest.php	@group rest
MenuLegacyTest		class	Drupal\KernelTests\Core\Menu	core/tests/Drupal/KernelTests/Core/Menu/MenuLegacyTest.php	Deprecation tests cases for the menu layer.
MenuLink		class	Drupal\menu_link_content\Plugin\migrate\source	core/modules/menu_link_content/src/Plugin/migrate/source/MenuLink.php	Drupal menu link source from database.	1	1
MenuLinkAdd		class	Drupal\menu_ui\Plugin\Menu\LocalAction	core/modules/menu_ui/src/Plugin/Menu/LocalAction/MenuLinkAdd.php	Modifies the 'Add link' local action to add a destination.			1
MenuLinkBase		abstract class	Drupal\Core\Menu	core/lib/Drupal/Core/Menu/MenuLinkBase.php	Defines a base menu link class.	5	3
MenuLinkContent		class	Drupal\menu_link_content\Entity	core/modules/menu_link_content/src/Entity/MenuLinkContent.php	Defines the menu link content entity class.		23
MenuLinkContent		class	Drupal\menu_link_content\Plugin\Menu	core/modules/menu_link_content/src/Plugin/Menu/MenuLinkContent.php	Provides the menu link plugin for content menu links.		2	1
MenuLinkContentAccessControlHandler		class	Drupal\menu_link_content	core/modules/menu_link_content/src/MenuLinkContentAccessControlHandler.php	Defines the access control handler for the user entity type.		1
MenuLinkContentCacheabilityBubblingTest		class	Drupal\Tests\menu_link_content\Kernel	core/modules/menu_link_content/tests/src/Kernel/MenuLinkContentCacheabilityBubblingTest.php	Ensures that rendered menu links bubble the necessary bubbleable metadata for outbound path/route processing.
MenuLinkContentDeleteForm		class	Drupal\menu_link_content\Form	core/modules/menu_link_content/src/Form/MenuLinkContentDeleteForm.php	Provides a delete form for content menu links.
MenuLinkContentDeleteFormTest		class	Drupal\Tests\menu_link_content\Functional	core/modules/menu_link_content/tests/src/Functional/MenuLinkContentDeleteFormTest.php	Tests the menu link content delete UI.
MenuLinkContentDeriver		class	Drupal\menu_link_content\Plugin\Deriver	core/modules/menu_link_content/src/Plugin/Deriver/MenuLinkContentDeriver.php	Provides a deriver for user entered paths of menu links.			1
MenuLinkContentDeriverTest		class	Drupal\Tests\menu_link_content\Kernel	core/modules/menu_link_content/tests/src/Kernel/MenuLinkContentDeriverTest.php	Tests the menu link content deriver.
MenuLinkContentEntityAccessTest		class	Drupal\Tests\menu_link_content\Unit	core/modules/menu_link_content/tests/src/Unit/MenuLinkContentEntityAccessTest.php	Tests menu link content entity access.
MenuLinkContentForm		class	Drupal\menu_link_content\Form	core/modules/menu_link_content/src/Form/MenuLinkContentForm.php	Provides a form to add/update content menu links.			1
MenuLinkContentFormTest		class	Drupal\Tests\menu_link_content\Functional	core/modules/menu_link_content/tests/src/Functional/MenuLinkContentFormTest.php	Tests the menu link content UI.
MenuLinkContentHalJsonAnonTest		class	Drupal\Tests\menu_link_content\Functional\Hal	core/modules/menu_link_content/tests/src/Functional/Hal/MenuLinkContentHalJsonAnonTest.php	@group hal	2
MenuLinkContentHalJsonBasicAuthTest		class	Drupal\Tests\menu_link_content\Functional\Hal	core/modules/menu_link_content/tests/src/Functional/Hal/MenuLinkContentHalJsonBasicAuthTest.php	@group hal
MenuLinkContentHalJsonCookieTest		class	Drupal\Tests\menu_link_content\Functional\Hal	core/modules/menu_link_content/tests/src/Functional/Hal/MenuLinkContentHalJsonCookieTest.php	@group hal
MenuLinkContentInterface		interface	Drupal\menu_link_content	core/modules/menu_link_content/src/MenuLinkContentInterface.php	Defines an interface for custom menu links.	1	4
MenuLinkContentJsonAnonTest		class	Drupal\Tests\menu_link_content\Functional\Rest	core/modules/menu_link_content/tests/src/Functional/Rest/MenuLinkContentJsonAnonTest.php	@group rest

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