Classes, traits, and interfaces - 10.3.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 1518

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
ContactMessageAccessControlHandler		class	Drupal\contact	core/modules/contact/src/ContactMessageAccessControlHandler.php	Defines the access control handler for the message form entity type.
ContactMessageResource		class	Drupal\contact\Plugin\rest\resource	core/modules/contact/src/Plugin/rest/resource/ContactMessageResource.php	Customizes the entity REST Resource plugin for Contact's Message entities.		1
ContactPageAccess		class	Drupal\contact\Access	core/modules/contact/src/Access/ContactPageAccess.php	Access check for contact_personal_page route.			2
ContactPersonalTest		class	Drupal\Tests\contact\Functional	core/modules/contact/tests/src/Functional/ContactPersonalTest.php	Tests personal contact form functionality.
ContactSettings		class	Drupal\contact\Plugin\migrate\source	core/modules/contact/src/Plugin/migrate/source/ContactSettings.php	Drupal 6/7 contact settings source from database.
ContactSettingsTest		class	Drupal\Tests\contact\Kernel\Plugin\migrate\source\d6	core/modules/contact/tests/src/Kernel/Plugin/migrate/source/d6/ContactSettingsTest.php	Tests D6 contact settings source plugin.
ContactSitewideTest		class	Drupal\Tests\contact\Functional	core/modules/contact/tests/src/Functional/ContactSitewideTest.php	Tests site-wide contact form functionality.	1
ContactStorageTest		class	Drupal\Tests\contact\Functional	core/modules/contact/tests/src/Functional/ContactStorageTest.php	Tests storing contact messages.
ContactTest		class	Drupal\Tests\contact\Unit	core/modules/contact/tests/src/Unit/ContactTest.php	@group contact
Container		class	Drupal\Core\Render\Element	core/lib/Drupal/Core/Render/Element/Container.php	Provides a render element that wraps child elements in a container.	1
Container		class	Drupal\Component\DependencyInjection	core/lib/Drupal/Component/DependencyInjection/Container.php	Provides a container optimized for Drupal's needs.	2	1
Container		class	Drupal\Core\DependencyInjection	core/lib/Drupal/Core/DependencyInjection/Container.php	Extends the container to prevent serialization.	2	18
ContainerAwareEventDispatcher		class	Drupal\Component\EventDispatcher	core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php	A performance optimized container aware event dispatcher.		3	2
ContainerAwareEventDispatcherTest		class	Drupal\Tests\Component\EventDispatcher	core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php	Unit tests for the ContainerAwareEventDispatcher.
ContainerBuilder		class	Drupal\Core\DependencyInjection	core/lib/Drupal/Core/DependencyInjection/ContainerBuilder.php	Drupal's dependency injection container builder.		165
ContainerBuilderTest		class	Drupal\Tests\Core\DependencyInjection	core/tests/Drupal/Tests/Core/DependencyInjection/ContainerBuilderTest.php	@coversDefaultClass \Drupal\Core\DependencyInjection\ContainerBuilder @group DependencyInjection
ContainerDerivativeDiscoveryDecorator		class	Drupal\Core\Plugin\Discovery	core/lib/Drupal/Core/Plugin/Discovery/ContainerDerivativeDiscoveryDecorator.php	Injects dependencies into derivers if they use ContainerDeriverInterface.		14
ContainerDerivativeDiscoveryDecoratorTest		class	Drupal\Tests\Core\Plugin\Discovery	core/tests/Drupal/Tests/Core/Plugin/Discovery/ContainerDerivativeDiscoveryDecoratorTest.php	@coversDefaultClass \Drupal\Core\Plugin\Discovery\ContainerDerivativeDiscoveryDecorator @group Plugin
ContainerDeriverInterface		interface	Drupal\Core\Plugin\Discovery	core/lib/Drupal/Core/Plugin/Discovery/ContainerDeriverInterface.php	Creates additional plugin definitions.	45	45
ContainerFactory		class	Drupal\Core\Plugin\Factory	core/lib/Drupal/Core/Plugin/Factory/ContainerFactory.php	Plugin factory which passes a container to a create method.	1	11
ContainerFactoryPluginInterface		interface	Drupal\Core\Plugin	core/lib/Drupal/Core/Plugin/ContainerFactoryPluginInterface.php	Defines an interface for pulling plugin dependencies from the container.	143	146
ContainerForm		class	Drupal\forum\Form	core/modules/forum/src/Form/ContainerForm.php	Base form for container term edit forms.
ContainerInjectionInterface		interface	Drupal\Core\DependencyInjection	core/lib/Drupal/Core/DependencyInjection/ContainerInjectionInterface.php	Defines a common interface for dependency container injection.	109	109
ContainerInterface		interface	Drupal\Component\DependencyInjection	core/lib/Drupal/Component/DependencyInjection/ContainerInterface.php	The interface for Drupal service container classes.	2	3
ContainerNotInitializedException		class	Drupal\Core\DependencyInjection	core/lib/Drupal/Core/DependencyInjection/ContainerNotInitializedException.php	Exception, thrown when a method is called on a non-initialized container.		2
ContainerRebuildTestServiceProvider		class	Drupal\container_rebuild_test	core/modules/system/tests/modules/container_rebuild_test/src/ContainerRebuildTestServiceProvider.php
ContainerRebuildWebTest		class	Drupal\Tests\system\Functional\DrupalKernel	core/modules/system/tests/src/Functional/DrupalKernel/ContainerRebuildWebTest.php	Ensures that the container rebuild works as expected.
ContainerResetWebTest		class	Drupal\Tests\system\Functional\DrupalKernel	core/modules/system/tests/src/Functional/DrupalKernel/ContainerResetWebTest.php	Ensures that the container rebuild works as expected.
ContainerTest		class	Drupal\Tests\Core\DependencyInjection	core/tests/Drupal/Tests/Core/DependencyInjection/ContainerTest.php	@coversDefaultClass \Drupal\Core\DependencyInjection\Container @group DependencyInjection
ContainerTest		class	Drupal\Tests\Component\DependencyInjection	core/tests/Drupal/Tests/Component/DependencyInjection/ContainerTest.php	@coversDefaultClass \Drupal\Component\DependencyInjection\Container @group DependencyInjection	1
ContentDispositionFilenameParser		final class	Drupal\file\Upload	core/modules/file/src/Upload/ContentDispositionFilenameParser.php	Parses the content-disposition header to extract the client filename.		4
ContentDispositionFilenameParserTest		class	Drupal\Tests\file\Unit\Upload	core/modules/file/tests/src/Unit/Upload/ContentDispositionFilenameParserTest.php	Tests the ContentDispositionFilenameParser class.
ContentEntity		class	Drupal\migrate_drupal\Plugin\migrate\source	core/modules/migrate_drupal/src/Plugin/migrate/source/ContentEntity.php	Source plugin to get content entities from the current version of Drupal.		1
ContentEntityBase		abstract class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityBase.php	Implements Entity Field API specific enhancements to the Entity class.	17	15
ContentEntityBaseMockableClass		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/ContentEntityBaseMockableClass.php	A class extending ContentEntityBase for mocking purposes.		6
ContentEntityBaseUnitTest		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/ContentEntityBaseUnitTest.php	@coversDefaultClass \Drupal\Core\Entity\ContentEntityBase @group Entity @group Access
ContentEntityChangedTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/ContentEntityChangedTest.php	Tests basic EntityChangedInterface functionality.
ContentEntityCloneTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/ContentEntityCloneTest.php	Tests proper cloning of content entities.
ContentEntityConfirmFormBase		abstract class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityConfirmFormBase.php	Provides a generic base class for an entity-based confirmation form.	2	1
ContentEntityConstructorTest		class	Drupal\Tests\migrate_drupal\Kernel\Plugin\migrate\source	core/modules/migrate_drupal/tests/src/Kernel/Plugin/migrate/source/ContentEntityConstructorTest.php	Tests the constructor of the entity content source plugin.
ContentEntityDeleteForm		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityDeleteForm.php	Provides a generic base class for a content entity deletion form.	9	10
ContentEntityDenormalizer		final class	Drupal\jsonapi\Normalizer	core/modules/jsonapi/src/Normalizer/ContentEntityDenormalizer.php	Converts a JSON:API array structure into a Drupal entity object.			2
ContentEntityDeriver		class	Drupal\migrate_drupal\Plugin\migrate\source	core/modules/migrate_drupal/src/Plugin/migrate/source/ContentEntityDeriver.php	Deriver for content entity source plugins.
ContentEntityFieldMethodInvocationOrderTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/ContentEntityFieldMethodInvocationOrderTest.php	Tests correct field method invocation order.
ContentEntityForm		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityForm.php	Entity form variant for content entity types.	15	14
ContentEntityFormCorrectUserInputMappingOnFieldDeltaElementsTest		class	Drupal\FunctionalTests\Entity	core/tests/Drupal/FunctionalTests/Entity/ContentEntityFormCorrectUserInputMappingOnFieldDeltaElementsTest.php	Tests the correct mapping of user input on the correct field delta elements.
ContentEntityFormFieldValidationFilteringTest		class	Drupal\FunctionalTests\Entity	core/tests/Drupal/FunctionalTests/Entity/ContentEntityFormFieldValidationFilteringTest.php	Tests field validation filtering on content entity forms.
ContentEntityFormInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityFormInterface.php	Defines a common interface for content entity form classes.	1	4
ContentEntityHasChangesTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/ContentEntityHasChangesTest.php	Tests ContentEntityBase::hasTranslationChanges().
ContentEntityInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityInterface.php	Defines a common interface for all content entity objects.	15	72

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