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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
| Name | Type | Namespace |
Location |
Description | Direct uses | Use statements | Strings |
|---|---|---|---|---|---|---|---|
| LibraryDependencyResolverInterface | interface |
Drupal\ |
core/ |
Resolves the dependencies of asset (CSS/JavaScript) libraries. | 1 | ||
| LibraryDiscovery | class |
Drupal\ |
core/ |
Discovers available asset libraries in Drupal. | 1 | 2 | |
| LibraryDiscoveryCollector | class |
Drupal\ |
core/ |
A CacheCollector implementation for building library extension info. | 1 | 2 | |
| LibraryDiscoveryInterface | interface |
Drupal\ |
core/ |
Discovers information for asset (CSS/JavaScript) libraries. | 1 | ||
| AuthenticationCollector | class |
Drupal\ |
core/ |
A collector class for authentication providers. | 2 | 2 | |
| AuthenticationCollectorInterface | interface |
Drupal\ |
core/ |
Interface for collectors of registered authentication providers. | 1 | ||
| AuthenticationManager | class |
Drupal\ |
core/ |
Manager for authentication. | 1 | 2 | |
| AuthenticationProviderChallengeInterface | interface |
Drupal\ |
core/ |
Generate a challenge when access is denied for unauthenticated users. | 1 | 1 | |
| AuthenticationProviderFilterInterface | interface |
Drupal\ |
core/ |
Restrict authentication methods to a subset of the site. | 2 | 2 | |
| AuthenticationProviderInterface | interface |
Drupal\ |
core/ |
Interface for authentication providers. | 7 | 7 | |
| BatchBuilder | class |
Drupal\ |
core/ |
Builds an array for a batch process. | 15 | ||
| BatchStorageInterface | interface |
Drupal\ |
core/ |
Defines a common interface for batch storage operations. | 1 | 3 | |
| Percentage | class |
Drupal\ |
core/ |
Helper methods for the batch system. | 2 | ||
| Block | class |
Drupal\ |
core/ |
Defines a Block annotation object. | |||
| BlockBase | abstract class |
Drupal\ |
core/ |
Defines a base block implementation that most blocks plugins will extend. | 4 | 5 | |
| BlockManager | class |
Drupal\ |
core/ |
Manages discovery and instantiation of block plugins. | 1 | 2 | |
| BlockManagerInterface | interface |
Drupal\ |
core/ |
Provides an interface for the discovery and instantiation of block plugins. | 1 | 8 | |
| BlockPluginInterface | interface |
Drupal\ |
core/ |
Defines the required interface for all block plugins. | 5 | 16 | 1 |
| BlockPluginTrait | trait |
Drupal\ |
core/ |
Provides the base implementation of a block plugin. | |||
| MainContentBlockPluginInterface | interface |
Drupal\ |
core/ |
The interface for "main page content" blocks. | 1 | ||
| MessagesBlockPluginInterface | interface |
Drupal\ |
core/ |
The interface for "messages" (#type => status_messages) blocks. | |||
| TitleBlockPluginInterface | interface |
Drupal\ |
core/ |
The interface for "title" blocks. | 1 | ||
| Breadcrumb | class |
Drupal\ |
core/ |
Used to return generated breadcrumbs with associated cacheability metadata. | 12 | ||
| BreadcrumbBuilderInterface | interface |
Drupal\ |
core/ |
Defines an interface for classes that build breadcrumbs. | 7 | 6 | |
| BreadcrumbManager | class |
Drupal\ |
core/ |
Provides a breadcrumb manager. | 1 | 2 | |
| ChainBreadcrumbBuilderInterface | interface |
Drupal\ |
core/ |
Defines an interface a chained service that builds the breadcrumb. | 1 | ||
| BackendChain | class |
Drupal\ |
core/ |
Defines a chained cache implementation for combining multiple cache backends. | 2 | 4 | |
| Cache | class |
Drupal\ |
core/ |
Helper methods for cache. | 155 | ||
| CacheableAjaxResponse | class |
Drupal\ |
core/ |
A AjaxResponse that contains and can expose cacheability metadata. | 1 | ||
| CacheableDependencyInterface | interface |
Drupal\ |
core/ |
Defines an interface for objects which may be used by other cached objects. | 47 | 68 | |
| CacheableDependencyTrait | trait |
Drupal\ |
core/ |
Trait for \Drupal\Core\Cache\CacheableDependencyInterface. | 22 | ||
| CacheableJsonResponse | class |
Drupal\ |
core/ |
A JsonResponse that contains and can expose cacheability metadata. | 5 | ||
| CacheableMetadata | class |
Drupal\ |
core/ |
Defines a generic class for passing cacheability metadata. | 2 | 129 | |
| CacheableRedirectResponse | class |
Drupal\ |
core/ |
A RedirectResponse that contains and can expose cacheability metadata. | 2 | ||
| CacheableResponse | class |
Drupal\ |
core/ |
A response that contains and can expose cacheability metadata. | 1 | 9 | |
| CacheableResponseInterface | interface |
Drupal\ |
core/ |
Defines an interface for responses that can expose cacheability metadata. | 8 | 19 | |
| CacheableResponseTrait | trait |
Drupal\ |
core/ |
Provides an implementation of CacheableResponseInterface. | 5 | ||
| CacheBackendInterface | interface |
Drupal\ |
core/ |
Defines an interface for cache implementations. | 5 | 86 | 27 |
| CacheCollector | abstract class |
Drupal\ |
core/ |
Default implementation for CacheCollectorInterface. | 7 | 7 | |
| CacheCollectorInterface | interface |
Drupal\ |
core/ |
Provides a caching wrapper to be used in place of large structures. | 3 | 2 | |
| CacheFactoryInterface | interface |
Drupal\ |
core/ |
An interface defining cache factory classes. | 2 | 2 | |
| CacheRedirect | class |
Drupal\ |
core/ |
Defines a value object to represent a cache redirect. | 2 | ||
| CacheTagsChecksumInterface | interface |
Drupal\ |
core/ |
Provides checksums for cache tag invalidations. | 1 | ||
| CacheTagsChecksumTrait | trait |
Drupal\ |
core/ |
A trait for cache tag checksum implementations. | |||
| CacheTagsInvalidatorInterface | interface |
Drupal\ |
core/ |
Defines required methods for classes wanting to handle cache tag changes. | 5 | 12 | |
| ChainedFastBackend | class |
Drupal\ |
core/ |
Defines a backend with a fast and a consistent backend chain. | 2 | ||
| AccountPermissionsCacheContext | class |
Drupal\ |
core/ |
Defines the AccountPermissionsCacheContext service, for "per permission" caching. | 2 | ||
| CacheContextInterface | interface |
Drupal\ |
core/ |
Provides an interface for defining a cache context service. | 21 | 6 | |
| CacheContextsPass | class |
Drupal\ |
core/ |
Adds cache_contexts parameter to the container. | 1 | ||
| CalculatedCacheContextInterface | interface |
Drupal\ |
core/ |
Provides an interface for defining a calculated cache context service. | 9 | 3 |
