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
CalculatedPermissionsInterface interface Drupal\Core\Session core/lib/Drupal/Core/Session/CalculatedPermissionsInterface.php Defines the calculated permissions interface. 2 1
CalculatedPermissionsItem class Drupal\Core\Session core/lib/Drupal/Core/Session/CalculatedPermissionsItem.php Represents a single entry for the calculated permissions. 9
CalculatedPermissionsItemInterface interface Drupal\Core\Session core/lib/Drupal/Core/Session/CalculatedPermissionsItemInterface.php Defines the calculated permissions item interface. 1
CalculatedPermissionsItemTest class Drupal\Tests\Core\Session core/tests/Drupal/Tests/Core/Session/CalculatedPermissionsItemTest.php Tests the CalculatedPermissionsItem value object.
CalculatedPermissionsTest class Drupal\Tests\Core\Session core/tests/Drupal/Tests/Core/Session/CalculatedPermissionsTest.php Tests the CalculatedPermissions value object.
CalculatedPermissionsTrait trait Drupal\Core\Session core/lib/Drupal/Core/Session/CalculatedPermissionsTrait.php Trait for \Drupal\Core\Session\CalculatedPermissionsInterface.
CallableClass class Drupal\Tests\Component\EventDispatcher core/tests/Drupal/Tests/Component/EventDispatcher/ContainerAwareEventDispatcherTest.php
CallableResolver class Drupal\Core\Utility core/lib/Drupal/Core/Utility/CallableResolver.php Resolves PHP callables. 12 2
CallableResolverTest class Drupal\Tests\Core\Utility core/tests/Drupal/Tests/Core/Utility/CallableResolverTest.php @coversDefaultClass \Drupal\Core\Utility\CallableResolver @group Utility
Callback class Drupal\migrate\Plugin\migrate\process core/modules/migrate/src/Plugin/migrate/process/Callback.php Passes the source value to a callback. 1
Callbacks class Drupal\ajax_forms_test core/modules/system/tests/modules/ajax_forms_test/src/Callbacks.php Simple object for testing methods as Ajax callbacks. 3
Callbacks class Drupal\form_test core/modules/system/tests/modules/form_test/src/Callbacks.php Simple class for testing methods as Form API callbacks. 1
CallbackTest class Drupal\Tests\migrate\Unit\process core/modules/migrate/tests/src/Unit/process/CallbackTest.php Tests the callback process plugin.
CallsDestructableServiceController final class Drupal\destructable_test\Controller core/modules/system/tests/modules/destructable_test/src/Controller/CallsDestructableServiceController.php Controller to instantiate the destructable service.
CancelUser class Drupal\user\Plugin\Action core/modules/user/src/Plugin/Action/CancelUser.php Cancels a user account.
CaseInsensitivePathTest class Drupal\FunctionalTests\Routing core/tests/Drupal/FunctionalTests/Routing/CaseInsensitivePathTest.php Tests incoming path case insensitivity.
CaseSensitivityTest class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/CaseSensitivityTest.php Tests handling case sensitive collation.
CastedIntFieldJoin class Drupal\views\Plugin\views\join core/modules/views/src/Plugin/views/join/CastedIntFieldJoin.php Implementation for the "casted_int_field_join" join. 1
CastedIntFieldJoinTestBase abstract class Drupal\Tests\views\Kernel\Plugin core/modules/views/tests/src/Kernel/Plugin/CastedIntFieldJoinTestBase.php Tests the "casted_int_field_join" join plugin. 3 3
CastSql class Drupal\views\Plugin\views\query core/modules/views/src/Plugin/views/query/CastSql.php Cast handling in SQL. 2
CastSqlInterface interface Drupal\views\Plugin\views\query core/modules/views/src/Plugin/views/query/CastSqlInterface.php Defines an interface for defining cast expressions in SQL. 2 1
CategorizingPluginManager class Drupal\Tests\Core\Plugin core/tests/Drupal/Tests/Core/Plugin/CategorizingPluginManagerTraitTest.php Class that allows testing the trait.
CategorizingPluginManagerInterface interface Drupal\Component\Plugin core/lib/Drupal/Component/Plugin/CategorizingPluginManagerInterface.php Defines an interface for plugin managers that categorize plugin definitions. 6 6
CategorizingPluginManagerTrait trait Drupal\Core\Plugin core/lib/Drupal/Core/Plugin/CategorizingPluginManagerTrait.php Provides a trait for the CategorizingPluginManagerInterface. 5
CategorizingPluginManagerTraitTest class Drupal\Tests\Core\Plugin core/tests/Drupal/Tests/Core/Plugin/CategorizingPluginManagerTraitTest.php @coversDefaultClass \Drupal\Core\Plugin\CategorizingPluginManagerTrait @group Plugin @runTestsInSeparateProcesses
CategoryAutocompleteController class Drupal\block\Controller core/modules/block/src/Controller/CategoryAutocompleteController.php Returns autocomplete responses for block categories. 1
CategoryAutocompleteTest class Drupal\Tests\block\Unit core/modules/block/tests/src/Unit/CategoryAutocompleteTest.php @coversDefaultClass \Drupal\block\Controller\CategoryAutocompleteController @group block
ChainBreadcrumbBuilderInterface interface Drupal\Core\Breadcrumb core/lib/Drupal/Core/Breadcrumb/ChainBreadcrumbBuilderInterface.php Defines an interface a chained service that builds the breadcrumb. 1
ChainedFastBackend class Drupal\Core\Cache core/lib/Drupal/Core/Cache/ChainedFastBackend.php Defines a backend with a fast and a consistent backend chain. 3
ChainedFastBackendFactory class Drupal\Core\Cache core/lib/Drupal/Core/Cache/ChainedFastBackendFactory.php Defines the chained fast cache backend factory. 1 2
ChainedFastBackendFactoryTest class Drupal\Tests\Core\Cache core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendFactoryTest.php @coversDefaultClass \Drupal\Core\Cache\ChainedFastBackendFactory @group Cache
ChainedFastBackendTest class Drupal\Tests\Core\Cache core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php @coversDefaultClass \Drupal\Core\Cache\ChainedFastBackend @group Cache
ChainedFastBackendTest class Drupal\KernelTests\Core\Cache core/tests/Drupal/KernelTests/Core/Cache/ChainedFastBackendTest.php Unit test of the fast chained backend using the generic cache unit test base.
ChainedPlaceholderStrategy class Drupal\Core\Render\Placeholder core/lib/Drupal/Core/Render/Placeholder/ChainedPlaceholderStrategy.php Renders placeholders using a chain of placeholder strategies. 1 2
ChainedPlaceholderStrategyTest class Drupal\Tests\Core\Render\Placeholder core/tests/Drupal/Tests/Core/Render/Placeholder/ChainedPlaceholderStrategyTest.php @coversDefaultClass \Drupal\Core\Render\Placeholder\ChainedPlaceholderStrategy @group Render
ChainEntityResolver class Drupal\serialization\EntityResolver core/modules/serialization/src/EntityResolver/ChainEntityResolver.php Resolver delegating the entity resolution to a chain of resolvers. 1 2
ChainEntityResolverInterface interface Drupal\serialization\EntityResolver core/modules/serialization/src/EntityResolver/ChainEntityResolverInterface.php An interface for delegating an entity resolution to a chain of resolvers. 1
ChainEntityResolverTest class Drupal\Tests\serialization\Unit\EntityResolver core/modules/serialization/tests/src/Unit/EntityResolver/ChainEntityResolverTest.php @coversDefaultClass \Drupal\serialization\EntityResolver\ChainEntityResolver @group serialization
ChainRequestPolicy class Drupal\Core\PageCache core/lib/Drupal/Core/PageCache/ChainRequestPolicy.php Implements a compound request policy. 2 2
ChainRequestPolicyInterface interface Drupal\Core\PageCache core/lib/Drupal/Core/PageCache/ChainRequestPolicyInterface.php Defines the interface for compound request policies. 1
ChainRequestPolicyTest class Drupal\Tests\Core\PageCache core/tests/Drupal/Tests/Core/PageCache/ChainRequestPolicyTest.php @coversDefaultClass \Drupal\Core\PageCache\ChainRequestPolicy @group PageCache
ChainResponsePolicy class Drupal\Core\PageCache core/lib/Drupal/Core/PageCache/ChainResponsePolicy.php Implements a compound response policy. 1 4
ChainResponsePolicy class Drupal\Core\ProxyClass\PageCache core/lib/Drupal/Core/ProxyClass/PageCache/ChainResponsePolicy.php Provides a proxy class for \Drupal\Core\PageCache\ChainResponsePolicy.
ChainResponsePolicyInterface interface Drupal\Core\PageCache core/lib/Drupal/Core/PageCache/ChainResponsePolicyInterface.php Defines the interface for compound request policies. 2
ChainResponsePolicyTest class Drupal\Tests\Core\PageCache core/tests/Drupal/Tests/Core/PageCache/ChainResponsePolicyTest.php @coversDefaultClass \Drupal\Core\PageCache\ChainResponsePolicy @group PageCache
ChangedCommand class Drupal\Core\Ajax core/lib/Drupal/Core/Ajax/ChangedCommand.php An AJAX command for marking HTML elements as changed. 2
ChangedFieldItemList class Drupal\Core\Field core/lib/Drupal/Core/Field/ChangedFieldItemList.php Defines an item list class for changed fields. 2
ChangedItem class Drupal\Core\Field\Plugin\Field\FieldType core/lib/Drupal/Core/Field/Plugin/Field/FieldType/ChangedItem.php Defines the 'changed' entity field type. 1 2
ChangedTestItem class Drupal\entity_test\Plugin\Field\FieldType core/modules/system/tests/modules/entity_test/src/Plugin/Field/FieldType/ChangedTestItem.php Defines the 'changed_test' entity field type.
ChangeUserRoleBase abstract class Drupal\user\Plugin\Action core/modules/user/src/Plugin/Action/ChangeUserRoleBase.php Provides a base class for operations to change a user's role. 2

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