Class Rack::Cache::MetaStore::MemCacheBase
In: lib/rack/cache/metastore.rb
Parent: MetaStore

Stores request/response pairs in memcached. Keys are not stored directly since memcached has a 250-byte limit on key names. Instead, the SHA1 hexdigest of the key is used.

Methods

resolve  

Attributes

cache  [R]  The MemCache object used to communicated with the memcached daemon.

Public Class methods

Create MemCache store for the given URI. The URI must specify a host and may specify a port, namespace, and options:

memcached://example.com:11211/namespace?opt1=val1&opt2=val2

Query parameter names and values are documented with the memcached library: tinyurl.com/4upqnd

[Source]

     # File lib/rack/cache/metastore.rb, line 286
286:       def self.resolve(uri)
287:         if uri.respond_to?(:scheme)
288:           server = "#{uri.host}:#{uri.port || '11211'}"
289:           options = parse_query(uri.query)
290:           options.keys.each do |key|
291:             value =
292:               case value = options.delete(key)
293:               when 'true' ; true
294:               when 'false' ; false
295:               else value.to_sym
296:               end
297:             options[key.to_sym] = value
298:           end
299: 
300:           options[:namespace] = uri.path.to_s.sub(/^\//, '')
301: 
302:           new server, options
303:         else
304:           # if the object provided is not a URI, pass it straight through
305:           # to the underlying implementation.
306:           new uri
307:         end
308:       end

[Validate]