CacheableDependencyInterface
interface CacheableDependencyInterface (View source)
Defines an interface for objects which may be used by other cached objects.
All cacheability metadata exposed in this interface is bubbled to parent objects when they are cached: if a child object needs to be varied by certain cache contexts, invalidated by certain cache tags, expire after a certain maximum age, then so should any parent object.
Methods
The cache contexts associated with this object.
The cache tags associated with this object.
The maximum age for which this object may be cached.
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.
string[]
getCacheTags()
The cache tags associated with this object.
When this object is modified, these cache tags will be invalidated.
int
getCacheMaxAge()
The maximum age for which this object may be cached.