Class: Caches::Memcached

Inherits:
Object
  • Object
show all
Defined in:
lib/store/caches/memcached.rb

Constant Summary collapse

@@max_size = 
1000000

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Memcached

Returns a new instance of Memcached.



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# File 'lib/store/caches/memcached.rb', line 10

def initialize
  @cache = EM::P::Memcache.connect
end

Instance Method Details

#invalidate ⇒ Object 



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# File 'lib/store/caches/memcached.rb', line 14

def invalidate
  set 'invalidated_at', Time.new
end

#load(key) ⇒ Object 



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# File 'lib/store/caches/memcached.rb', line 18

def load(key)
  key_date = "#{key}_date"

  time_set = get(key_date) 
  invalidated_at = get('invalidated_at')

  if time_set && (!invalidated_at || time_set > invalidated_at)
    data = get(key)
    data
  end
end

#save(key, data) ⇒ Object 



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# File 'lib/store/caches/memcached.rb', line 30

def save key, data
  key_date = "#{key}_date"

  set(key, data)
  set(key_date, Time.new)
end