interface RefinableCacheableDependencyInterface implements CacheableDependencyInterface (View source)

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.

Methods

string[]
getCacheContexts()

The cache contexts associated with this object.

string[]
getCacheTags()

The cache tags associated with this object.

int
getCacheMaxAge()

The maximum age for which this object may be cached.

$this
addCacheContexts(array $cache_contexts)

Adds cache contexts.

$this
addCacheTags(array $cache_tags)

Adds cache tags.

$this
mergeCacheMaxAge(int $max_age)

Merges the maximum age (in seconds) with the existing maximum age.

$this
addCacheableDependency(CacheableDependencyInterface|object $other_object)

Adds a dependency on an object: merges its cacheability metadata.

Details

string[] getCacheContexts()

The cache contexts associated with this object.

These identify a specific variation/representation of the object.

Cache contexts are tokens: placeholders that are converted to cache keys by the @cache_contexts_manager service. The replacement value depends on the request context (the current URL, language, and so on). They're converted before storing an object in cache.

Return Value

string[]

An array of cache context tokens, used to generate a cache ID.

See also

CacheContextsManager::convertTokensToKeys

string[] getCacheTags()

The cache tags associated with this object.

When this object is modified, these cache tags will be invalidated.

Return Value

string[]

A set of cache tags.

int getCacheMaxAge()

The maximum age for which this object may be cached.

Return Value

int

The maximum time in seconds that this object may be cached.

$this addCacheContexts(array $cache_contexts)

Adds cache contexts.

Parameters

array $cache_contexts

The cache contexts to be added.

Return Value

$this

$this addCacheTags(array $cache_tags)

Adds cache tags.

Parameters

array $cache_tags

The cache tags to be added.

Return Value

$this

$this mergeCacheMaxAge(int $max_age)

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.

Parameters

int $max_age

The max age to associate.

Return Value

$this

Exceptions

InvalidArgumentException

$this addCacheableDependency(CacheableDependencyInterface|object $other_object)

Adds a dependency on an object: merges its cacheability metadata.

Parameters

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 Value

$this

See also

CacheableMetadata::createFromObject