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<?php
namespace Drupal\Core\Cache;
/**
* Allows to add cacheability metadata to an object for the current runtime.
*
* This must be used when changing an object in a way that affects its
* cacheability. For example, when changing the active translation of an entity
* based on the current content language then a cache context for that must be
* added.
*/
interface RefinableCacheableDependencyInterface extends CacheableDependencyInterface {
/**
* Adds cache contexts.
*
* @param string[] $cache_contexts
* The cache contexts to be added.
*
* @return $this
*/
public function addCacheContexts(array $cache_contexts);
/**
* Adds cache tags.
*
* @param string[] $cache_tags
* The cache tags to be added.
*
* @return $this
*/
public function addCacheTags(array $cache_tags);
/**
* Merges the maximum age (in seconds) with the existing maximum age.
*
* The max age will be set to the given value if it is lower than the existing
* value.
*
* @param int $max_age
* The max age to associate.
*
* @return $this
*
* @throws \InvalidArgumentException
* Thrown if a non-integer value is supplied.
*/
public function mergeCacheMaxAge($max_age);
/**
* Adds a dependency on an object: merges its cacheability metadata.
*
* @param \Drupal\Core\Cache\CacheableDependencyInterface|object $other_object
* The dependency. If the object implements CacheableDependencyInterface,
* then its cacheability metadata will be used. Otherwise, the passed in
* object must be assumed to be uncacheable, so max-age 0 is set.
*
* @return $this
*
* @see \Drupal\Core\Cache\CacheableMetadata::createFromObject()
*/
public function addCacheableDependency($other_object);
}
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