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
EntityTestViewGrantsCacheContext		class	Drupal\entity_test\Cache	core/modules/system/tests/modules/entity_test/src/Cache/EntityTestViewGrantsCacheContext.php	Defines the entity_test view grants cache context service.			2
EntityTestViewsData		class	Drupal\entity_test	core/modules/system/tests/modules/entity_test/src/EntityTestViewsData.php	Provides a view to override views data for test entity types.
EntityTestViewsFieldAccessTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/EntityTestViewsFieldAccessTest.php	Tests base field access in Views for the entity_test entity.
EntityTestWithBundle		class	Drupal\entity_test\Entity	core/modules/system/tests/modules/entity_test/src/Entity/EntityTestWithBundle.php	Defines the Test entity with bundle entity class.		4
EntityTestWithRevisionLog		class	Drupal\entity_test_revlog\Entity	core/modules/system/tests/modules/entity_test_revlog/src/Entity/EntityTestWithRevisionLog.php	Defines the test entity class.	2
EntityTestXmlAnonTest		class	Drupal\Tests\entity_test\Functional\Rest	core/modules/system/tests/modules/entity_test/tests/src/Functional/Rest/EntityTestXmlAnonTest.php	@group rest
EntityTestXmlBasicAuthTest		class	Drupal\Tests\entity_test\Functional\Rest	core/modules/system/tests/modules/entity_test/tests/src/Functional/Rest/EntityTestXmlBasicAuthTest.php	@group rest
EntityTestXmlCookieTest		class	Drupal\Tests\entity_test\Functional\Rest	core/modules/system/tests/modules/entity_test/tests/src/Functional/Rest/EntityTestXmlCookieTest.php	@group rest
EntityTranslationFormTest		class	Drupal\Tests\system\Functional\Entity	core/modules/system/tests/src/Functional/Entity/EntityTranslationFormTest.php	Tests entity translation form.
EntityTranslationNormalizeTest		class	Drupal\Tests\hal\Kernel	core/modules/hal/tests/src/Kernel/EntityTranslationNormalizeTest.php	Tests that translated nodes are correctly (de-)normalized.
EntityTranslationRendererBase		abstract class	Drupal\views\Entity\Render	core/modules/views/src/Entity/Render/EntityTranslationRendererBase.php	Defines a base class for entity translation renderers.	3
EntityTranslationRenderTrait		trait	Drupal\views\Entity\Render	core/modules/views/src/Entity/Render/EntityTranslationRenderTrait.php	Trait used to instantiate the view's entity translation renderer.		6
EntityTranslationSettings		class	Drupal\content_translation\Plugin\migrate\source\d7	core/modules/content_translation/src/Plugin/migrate/source/d7/EntityTranslationSettings.php	Drupal 7 Entity Translation settings from variables.
EntityTranslationSettingsTest		class	Drupal\Tests\content_translation\Kernel\Plugin\migrate\source\d7	core/modules/content_translation/tests/src/Kernel/Plugin/migrate/source/d7/EntityTranslationSettingsTest.php	Tests entity translation settings source plugin.
EntityTranslationTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/EntityTranslationTest.php	Tests entity translation functionality.
EntityType		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityType.php	Provides an implementation of an entity type and its metadata.	2	12
EntityType		class	Drupal\Core\Entity\Annotation	core/lib/Drupal/Core/Entity/Annotation/EntityType.php	Defines an Entity type annotation object.	2
EntityTypeBundleInfo		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeBundleInfo.php	Provides discovery and retrieval of entity type bundles.		1	2
EntityTypeBundleInfoInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeBundleInfoInterface.php	Provides an interface for an entity type bundle info.	2	61
EntityTypeBundleInfoTest		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/EntityTypeBundleInfoTest.php	@coversDefaultClass \Drupal\Core\Entity\EntityTypeBundleInfo @group Entity
EntityTypeConstraint		class	Drupal\Core\Entity\Plugin\Validation\Constraint	core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityTypeConstraint.php	Checks if a value is a valid entity type.
EntityTypeConstraintsTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/EntityTypeConstraintsTest.php	Tests entity level validation constraints.
EntityTypeConstraintValidator		class	Drupal\Core\Entity\Plugin\Validation\Constraint	core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityTypeConstraintValidator.php	Validates the EntityType constraint.
EntityTypeConstraintValidatorTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/EntityTypeConstraintValidatorTest.php	Tests validation constraints for EntityTypeConstraintValidator.
EntityTypedDataDefinitionTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/EntityTypedDataDefinitionTest.php	Tests deriving metadata of entity and field data types.
EntityTypeEvent		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeEvent.php	Defines a base class for all entity type events.		1
EntityTypeEvents		final class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeEvents.php	Contains all events thrown while handling entity types.		3
EntityTypeEventSubscriberTrait		trait	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeEventSubscriberTrait.php	Helper methods for EntityTypeListenerInterface.		4
EntityTypeIdLengthException		class	Drupal\Core\Entity\Exception	core/lib/Drupal/Core/Entity/Exception/EntityTypeIdLengthException.php	Defines an exception thrown when an entity ID is too long.		1
EntityTypeInfo		class	Drupal\content_moderation	core/modules/content_moderation/src/EntityTypeInfo.php	Manipulates entity type information.		2
EntityTypeInfo		class	Drupal\workspaces	core/modules/workspaces/src/EntityTypeInfo.php	Manipulates entity type information.		1
EntityTypeInfoTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/EntityTypeInfoTest.php	@coversDefaultClass \Drupal\content_moderation\EntityTypeInfo
EntityTypeInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeInterface.php	Provides an interface for an entity type and its metadata.	3	216
EntityTypeListener		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeListener.php	Reacts to entity type CRUD on behalf of the Entity system.			2
EntityTypeListenerInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeListenerInterface.php	Defines an interface for reacting to entity type creation, deletion, and updates.	7	6
EntityTypeManager		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeManager.php	Manages entity type plugin definitions.	1	4	2
EntityTypeManagerInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeManagerInterface.php	Provides an interface for entity type managers.	2	344
EntityTypeManagerTest		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/EntityTypeManagerTest.php	@coversDefaultClass \Drupal\Core\Entity\EntityTypeManager @group Entity
EntityTypeManagerTestEntity		abstract class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/EntityFieldManagerTest.php	Provides a content entity with dummy static method implementations.
EntityTypeRepository		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeRepository.php	Provides helper methods for loading entity types.		1	2
EntityTypeRepositoryInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/EntityTypeRepositoryInterface.php	Provides an interface for helper methods for loading entity types.	2	13
EntityTypeRepositoryTest		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/EntityTypeRepositoryTest.php	@coversDefaultClass \Drupal\Core\Entity\EntityTypeRepository @group Entity
EntityTypeTest		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/EntityTypeTest.php	@coversDefaultClass \Drupal\Core\Entity\EntityType @group Entity
EntityTypeWithoutLanguageFormTest		class	Drupal\Tests\language\Functional	core/modules/language/tests/src/Functional/EntityTypeWithoutLanguageFormTest.php	Tests entity type without language support.
EntityTypeWithoutViewsDataTest		class	Drupal\Tests\datetime_range\Kernel\Views	core/modules/datetime_range/tests/src/Kernel/Views/EntityTypeWithoutViewsDataTest.php	Tests datetime_range.module when an entity type provides no views data.
EntityUnitTest		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/EntityUnitTest.php	@coversDefaultClass \Drupal\Core\Entity\Entity @group Entity @group Access
EntityUnitTestBase	in drupal:8.1.0 and is removed from drupal:9.0.0. Use \Drupal\KernelTests\Core\Entity\EntityKernelTestBase instead.	abstract class	Drupal\system\Tests\Entity	core/modules/system/src/Tests/Entity/EntityUnitTestBase.php	Defines an abstract test base for entity unit tests.
EntityUntranslatableFieldsConstraint		class	Drupal\Core\Entity\Plugin\Validation\Constraint	core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityUntranslatableFieldsConstraint.php	Validation constraint for the entity changed timestamp.
EntityUntranslatableFieldsConstraintValidator		class	Drupal\Core\Entity\Plugin\Validation\Constraint	core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityUntranslatableFieldsConstraintValidator.php	Validates the EntityChanged constraint.
EntityUpdateAddRevisionDefaultTest		class	Drupal\Tests\system\Functional\Update	core/modules/system/tests/src/Functional/Update/EntityUpdateAddRevisionDefaultTest.php	Tests the upgrade path for adding the 'revision_default' field.

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