constants | attributes | methods
Module

ActiveSupport::Cache

Inheritance

See ActiveSupport::Cache::Store for documentation.

Classes & Modules

Methods

Class

Visibility Signature
public expand_cache_key (key, namespace = nil)
public lookup_store (*store_option)

Class Method Detail

expand_cache_key(key, namespace = nil)

lookup_store(*store_option)

Creates a new CacheStore object according to the given options.

If no arguments are passed to this method, then a new ActiveSupport::Cache::MemoryStore object will be returned.

If you pass a Symbol as the first argument, then a corresponding cache store class under the ActiveSupport::Cache namespace will be created. For example: 

  ActiveSupport::Cache.lookup_store(:memory_store)
  # => returns a new ActiveSupport::Cache::MemoryStore object

  ActiveSupport::Cache.lookup_store(:drb_store)
  # => returns a new ActiveSupport::Cache::DRbStore object

Any additional arguments will be passed to the corresponding cache store class‘s constructor: 

  ActiveSupport::Cache.lookup_store(:file_store, "/tmp/cache")
  # => same as: ActiveSupport::Cache::FileStore.new("/tmp/cache")

If the first argument is not a Symbol, then it will simply be returned: 

  ActiveSupport::Cache.lookup_store(MyOwnCacheStore.new)
  # => returns MyOwnCacheStore.new