Class: Excursion::Datastores::Memcache

Inherits:
Datastore
  • Object
show all
Defined in:
lib/excursion/datastores/memcache.rb

Constant Summary collapse

REGISTERED_KEYS = 
'registered_keys'

Instance Method Summary collapse

Methods inherited from Datastore

#all_apps, #app, #application_class

Instance Method Details

#all ⇒ Object 



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# File 'lib/excursion/datastores/memcache.rb', line 34

def all
  hash = HashWithIndifferentAccess.new
  registered_keys.each { |key| hash[key.to_s] = @client.get(key.to_s) }
  hash
rescue Dalli::RingError => e
  rescue_from_dalli_ring_error(e) && retry
end

#delete(key) ⇒ Object Also known as: unset 



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# File 'lib/excursion/datastores/memcache.rb', line 24

def delete(key)
  regd_keys = registered_keys
  regd_keys.delete(key.to_s)
  value = @client.get(key.to_s)
  value if @client.delete(key.to_s) && @client.set(REGISTERED_KEYS, regd_keys.join(','))
rescue Dalli::RingError => e
  rescue_from_dalli_ring_error(e) && retry
end

#read(key) ⇒ Object Also known as: get 



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# File 'lib/excursion/datastores/memcache.rb', line 10

def read(key)
  @client.get(key.to_s)
rescue Dalli::RingError => e
  rescue_from_dalli_ring_error(e) && retry
end

#write(key, value) ⇒ Object Also known as: set 



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# File 'lib/excursion/datastores/memcache.rb', line 17

def write(key, value)
  value if @client.set(key.to_s, value) && @client.set(REGISTERED_KEYS, (registered_keys << key.to_s).join(','))
rescue Dalli::RingError => e
  rescue_from_dalli_ring_error(e) && retry
end