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Moneta::Adapters::MemcachedDalli

Memcached backend (using gem dalli) @api public

Attributes

backend[R]

Public Class Methods

new(options = {}) click to toggle source

@param [Hash] options @option options [String] :server ('127.0.0.1:11211') Memcached server @option options [Integer] :expires Default expiration time @option options [::Dalli::Client] :backend Use existing backend instance @option options Other options passed to `Dalli::Client#new`

# File lib/moneta/adapters/memcached/dalli.rb, line 19
def initialize(options = {})
  self.default_expires = options.delete(:expires)
  @backend = options[:backend] ||
    begin
      server = options.delete(:server) || '127.0.0.1:11211'
      ::Dalli::Client.new(server, options)
    end
end

Public Instance Methods

clear(options = {}) click to toggle source

(see Proxy#clear)

# File lib/moneta/adapters/memcached/dalli.rb, line 72
def clear(options = {})
  @backend.flush_all
  self
end
close() click to toggle source

(see Proxy#close)

# File lib/moneta/adapters/memcached/dalli.rb, line 83
def close
  @backend.close
  nil
end
create(key, value, options = {}) click to toggle source

(see Defaults#create)

# File lib/moneta/adapters/memcached/dalli.rb, line 78
def create(key, value, options = {})
  @backend.add(key, value, expires_value(options) || nil, :raw => true)
end
delete(key, options = {}) click to toggle source

(see Proxy#delete)

# File lib/moneta/adapters/memcached/dalli.rb, line 45
def delete(key, options = {})
  value = @backend.get(key)
  @backend.delete(key)
  value
end
increment(key, amount = 1, options = {}) click to toggle source

(see Proxy#increment)

# File lib/moneta/adapters/memcached/dalli.rb, line 52
def increment(key, amount = 1, options = {})
  # FIXME: There is a Dalli bug, load(key) returns a wrong value after increment
  # therefore we set default = nil and create the counter manually
  # See https://github.com/mperham/dalli/issues/309
  result =
    if amount >= 0
      @backend.incr(key, amount, expires_value(options) || nil, nil)
    else
      @backend.decr(key, -amount, expires_value(options) || nil, nil)
    end
  if result
    result
  elsif create(key, amount.to_s, options)
    amount
  else
    increment(key, amount, options)
  end
end
load(key, options = {}) click to toggle source

(see Proxy#load)

# File lib/moneta/adapters/memcached/dalli.rb, line 29
def load(key, options = {})
  value = @backend.get(key)
  if value
    expires = expires_value(options, nil)
    @backend.set(key, value, expires || nil, :raw => true) if expires != nil
    value
  end
end
store(key, value, options = {}) click to toggle source

(see Proxy#store)

# File lib/moneta/adapters/memcached/dalli.rb, line 39
def store(key, value, options = {})
  @backend.set(key, value, expires_value(options) || nil, :raw => true)
  value
end

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