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
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core/
core.api.php, line 1518
| Name | Deprecated | Object type | Namespace | File name | Summary | Direct uses | Use statements | Strings |
|---|---|---|---|---|---|---|---|---|
| ComponentElement | class | Drupal\Core\Render\Element | core/ |
Provides a Single-Directory Component render element. | ||||
| ComponentEntityDisplayBase | abstract class | Drupal\migrate\Plugin\migrate\destination | core/ |
Provides a destination plugin for migrating entity display components. | 3 | 2 | ||
| ComponentGenerator | class | Drupal\Composer\Generator | composer/ |
Reconciles Drupal component dependencies with core. | 1 | |||
| ComponentInvalidReplacementTest | class | Drupal\KernelTests\Components | core/ |
Tests invalid render options for components. | ||||
| ComponentKernelTestBase | abstract class | Drupal\Tests\Core\Theme\Component | core/ |
Defines a base class for component kernel tests. | 6 | 4 | ||
| ComponentLoader | class | Drupal\Core\Template\Loader | core/ |
Lets you load templates using the component ID. | 1 | |||
| ComponentMetadata | class | Drupal\Core\Theme\Component | core/ |
Component metadata. | 2 | |||
| ComponentMetadataTest | class | Drupal\Tests\Core\Theme\Component | core/ |
Unit tests for the component metadata class. | ||||
| ComponentNegotiator | class | Drupal\Core\Theme | core/ |
Determines which component should be used. | 1 | 1 | ||
| ComponentNegotiatorTest | class | Drupal\Tests\Core\Theme\Component | core/ |
Tests the component negotiator. | ||||
| ComponentNodeVisitor | class | Drupal\Core\Template | core/ |
Provides a ComponentNodeVisitor to change the generated parse-tree. | ||||
| ComponentNodeVisitorTest | class | Drupal\KernelTests\Components | core/ |
Tests the node visitor. | ||||
| ComponentNotFoundException | class | Drupal\Core\Render\Component\Exception | core/ |
Raised when a component cannot be found. | 5 | |||
| ComponentPluginManager | class | Drupal\Core\Theme | core/ |
Defines a plugin manager to deal with components. | 8 | 2 | ||
| ComponentPluginManagerTest | class | Drupal\Tests\Core\Theme\Component | core/ |
Tests the component plugin manager. | ||||
| ComponentRenderInvalidTest | class | Drupal\KernelTests\Components | core/ |
Tests invalid render options for components. | ||||
| ComponentRenderTest | class | Drupal\KernelTests\Components | core/ |
Tests the correct rendering of components. | ||||
| ComponentRenderTest | class | Drupal\FunctionalTests\Components | core/ |
Tests the correct rendering of components. | ||||
| ComponentRenderTest | class | Drupal\FunctionalJavascriptTests\Components | core/ |
Tests the correct rendering of components. | ||||
| ComponentsIsolatedBuildTest | class | Drupal\BuildTests\Composer\Component | core/ |
Try to install dependencies per component, using Composer. | ||||
| ComponentsTaggedReleaseTest | class | Drupal\BuildTests\Composer\Component | core/ |
Demonstrate that the Component generator responds to release tagging. | ||||
| ComponentsTwigExtension | final class | Drupal\Core\Template | core/ |
The twig extension so Drupal can recognize the new code. | 1 | |||
| ComponentValidator | class | Drupal\Core\Theme\Component | core/ |
Validates a component based on its definition and the component schema. | 3 | 1 | ||
| ComponentValidatorTest | class | Drupal\Tests\Core\Theme\Component | core/ |
Unit tests for the component validation. | ||||
| Composer | class | Drupal\Core\Composer | core/ |
Provides static functions for composer script events. | ||||
| Composer | class | Drupal\Composer | composer/ |
Provides static functions for composer script events. | 8 | |||
| ComposerBuildTestBase | abstract class | Drupal\BuildTests\Composer | core/ |
Base class for Composer build tests. | 3 | 3 | ||
| ComposerHookTest | class | Drupal\Tests\Composer\Plugin\Scaffold\Functional | core/ |
Tests Composer Hooks that run scaffold operations. | ||||
| ComposerIntegrationTest | class | Drupal\Tests | core/ |
Tests Composer integration. | ||||
| ComposerIntegrationTrait | trait | Drupal\Tests\Composer | core/ |
Some utility functions for testing the Composer integration. | 2 | |||
| ComposerPluginImplementsScaffoldEvents | class | Drupal\Tests\fixture\Composer\Plugin | core/ |
A fixture composer plugin implement Drupal scaffold events. | ||||
| ComposerProjectTemplatesTest | class | Drupal\BuildTests\Composer\Template | core/ |
Demonstrate that Composer project templates can be built as patched. | ||||
| ComposerScaffoldCommand | class | Drupal\Composer\Plugin\Scaffold | composer/ |
The "drupal:scaffold" command class. | ||||
| ComposerTest | class | Drupal\Tests\Composer | core/ |
@coversDefaultClass \Drupal\Composer\Composer[[api-linebreak]] @group Composer | ||||
| ComposerValidateTest | class | Drupal\BuildTests\Composer | core/ |
@group Composer | ||||
| CompositeConstraintBase | abstract class | Drupal\Core\Entity\Plugin\Validation\Constraint | core/ |
Provides a base class for constraints validating multiple fields. | 4 | 6 | ||
| CompositeFormElementTrait | trait | Drupal\Core\Render\Element | core/ |
Provides a trait for radios, checkboxes, and similar composite form elements. | ||||
| ComputedBundleFieldTest | class | Drupal\Tests\views\Kernel\Handler | core/ |
Provides some integration tests for computed bundle fields. | ||||
| ComputedFieldTest | class | Drupal\Tests\views\Kernel\Handler | core/ |
Provides some integration tests for the Field handler. | ||||
| ComputedFileUrl | class | Drupal\file | core/ |
Computed file URL property class. | 2 | |||
| ComputedFileUrlTest | class | Drupal\Tests\file\Kernel | core/ |
@coversDefaultClass \Drupal\file\ComputedFileUrl[[api-linebreak]] | ||||
| ComputedItemListTrait | trait | Drupal\Core\TypedData | core/ |
Provides common functionality for computed item lists. | 7 | |||
| ComputedReferenceTestFieldItemList | class | Drupal\entity_test\Plugin\Field | core/ |
A computed entity reference field item list. | 2 | |||
| ComputedString | class | Drupal\entity_test\TypedData | core/ |
A computed property for test strings. | 2 | |||
| ComputedTestBundleFieldItemList | class | Drupal\entity_test\Plugin\Field | core/ |
A computed field item list for a bundle field. | 1 | |||
| ComputedTestCacheableIntegerItemList | class | Drupal\entity_test\Plugin\Field | core/ |
Item list class for computed cacheable string field. | 1 | |||
| ComputedTestCacheableString | class | Drupal\entity_test\Plugin\DataType | core/ |
The string data type with cacheability metadata. | ||||
| ComputedTestCacheableStringItem | class | Drupal\entity_test\Plugin\Field\FieldType | core/ |
Defines the 'string' entity field type with cacheability metadata. | ||||
| ComputedTestCacheableStringItemList | class | Drupal\entity_test\Plugin\Field | core/ |
Item list class for computed cacheable string field. | 2 | |||
| ComputedTestFieldItemList | class | Drupal\entity_test\Plugin\Field | core/ |
A computed field item list. | 2 |
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