class HeadersCacheContext

Defines the HeadersCacheContext service, for "per header" caching.

Cache context ID: 'headers' (to vary by all headers). Calculated cache context ID: 'headers:%name', e.g. 'headers:X-Something' (to vary by the 'X-Something' header).

Hierarchy

• class \Drupal\Core\Cache\Context\RequestStackCacheContextBase
  • class \Drupal\Core\Cache\Context\HeadersCacheContext implements CalculatedCacheContextInterface

File

core/lib/Drupal/Core/Cache/Context/HeadersCacheContext.php, line 14

Namespace

Drupal\Core\Cache\Context

Members

Name	Modifiers	Type	Description
HeadersCacheContext::getCacheableMetadata	public	function	Gets the cacheability metadata for the context based on the parameter value. Overrides CalculatedCacheContextInterface::getCacheableMetadata
HeadersCacheContext::getContext	public	function	Returns the string representation of the cache context. Overrides CalculatedCacheContextInterface::getContext
HeadersCacheContext::getLabel	public static	function	Returns the label of the cache context. Overrides CalculatedCacheContextInterface::getLabel
RequestStackCacheContextBase::$requestStack	protected	property	The request stack.
RequestStackCacheContextBase::__construct	public	function	Constructs a new RequestStackCacheContextBase class.