public function CacheContextInterface::getCacheableMetadata in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Cache/Context/CacheContextInterface.php \Drupal\Core\Cache\Context\CacheContextInterface::getCacheableMetadata()

Gets the cacheability metadata for the context.

There are three valid cases for the returned CacheableMetadata object:

• An empty object means this can be optimized away safely.
• A max-age of 0 means that this context can never be optimized away. It will never bubble up and cache tags will not be used.
• Any non-zero max-age and cache tags will bubble up into the cache item if this is optimized away to allow for invalidation if the context value changes.

Return value

\Drupal\Core\Cache\CacheableMetadata A cacheable metadata object.

23 methods override CacheContextInterface::getCacheableMetadata()

AccountPermissionsCacheContext::getCacheableMetadata in core/lib/Drupal/Core/Cache/Context/AccountPermissionsCacheContext.php

Gets the cacheability metadata for the context.

BookNavigationCacheContext::getCacheableMetadata in core/modules/book/src/Cache/BookNavigationCacheContext.php

Gets the cacheability metadata for the context.

ConfigOverrideIntegrationTestCacheContext::getCacheableMetadata in core/modules/config/tests/config_override_integration_test/src/Cache/ConfigOverrideIntegrationTestCacheContext.php

Gets the cacheability metadata for the context.

EntityTestViewGrantsCacheContext::getCacheableMetadata in core/modules/system/tests/modules/entity_test/src/Cache/EntityTestViewGrantsCacheContext.php

Gets the cacheability metadata for the context.

FooCacheContext::getCacheableMetadata in core/tests/Drupal/Tests/Core/Cache/Context/CacheContextsManagerTest.php

Gets the cacheability metadata for the context.

... See full list

File

core/lib/Drupal/Core/Cache/Context/CacheContextInterface.php, line 44

Class

CacheContextInterface

Provides an interface for defining a cache context service.

Namespace

Drupal\Core\Cache\Context

Code

public function getCacheableMetadata();