Returns the maximum number of objects that are supported by this cache.

Returns the cache's delegate.

Returns whether objects stored in this cache which implement the NSDiscardableContent protocol are removed from the cache when their contents are evicted.

Returns the name associated with this cache.

Returns an object associated with the specified key in this cache.

Removes all objects from this cache.

Removes the object associated with the given key.

Sets the maximum number of objects permitted in this cache. This limit is advisory; caches may choose to disregard it temporarily or permanently. A limit of 0 is used to indicate no limit; this is the default.

Sets the delegate for this cache. The delegate will be notified when an object is being evicted or removed from the cache.

Sets whether this cache will evict objects that conform to the NSDiscardableContent protocol, or simply discard their contents.

Sets the name for this cache.

Adds an object to the cache without associating a cost with it.

Adds an object and its associated cost. The cache will endeavor to keep the total cost below the value set with -setTotalCostLimit: by discarding the contents of objects which implement the NSDiscardableContent protocol.

Sets the maximum total cost for objects stored in this cache. This limit is advisory; caches may choose to disregard it temporarily or permanently. A limit of 0 is used to indicate no limit; this is the default.

Returns the total cost of all objects held in the cache.

Delegate method, called just before the cache removes an object, either as the result of user action or due to the cache becoming full.