Converts cache context tokens into cache keys.
Uses cache context services (services tagged with 'cache.context', and whose service ID has the 'cache_context.' prefix) to dynamically generate cache keys based on the request context, thus allowing developers to express the state by which should varied (the current URL, language, and so on).
Note that this maps exactly to HTTP's Vary header semantics: @link http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.44
Hierarchy
- class \Drupal\Core\Cache\Context\CacheContextsManager
See also
\Drupal\Core\Cache\Context\CacheContextInterface
\Drupal\Core\Cache\Context\CalculatedCacheContextInterface
\Drupal\Core\Cache\Context\CacheContextsPass
File
- core/lib/Drupal/Core/Cache/Context/CacheContextsManager.php, line 23
Namespace
Drupal\Core\Cache\Context
Members
| Name | Modifiers | Type | Description |
|---|---|---|---|
| CacheContextsManager::$container | protected | property | The service container. |
| CacheContextsManager::$contexts | protected | property | Available cache context IDs and corresponding labels. |
| CacheContextsManager::assertValidTokens | public | function | Asserts the context tokens are valid |
| CacheContextsManager::convertTokensToKeys | public | function | Converts cache context tokens to cache keys. |
| CacheContextsManager::getAll | public | function | Provides an array of available cache contexts. |
| CacheContextsManager::getLabels | public | function | Provides an array of available cache context labels. |
| CacheContextsManager::getService | protected | function | Retrieves a cache context service from the container. |
| CacheContextsManager::optimizeTokens | public | function | Optimizes cache context tokens (the minimal representative subset). |
| CacheContextsManager::parseTokens | public static | function | Parses cache context tokens into context IDs and optional parameters. |
| CacheContextsManager::validateTokens | public | function | Validates an array of cache context tokens. |
| CacheContextsManager::__construct | public | function | Constructs a CacheContextsManager object. |
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