https://github.com/levicook/memodis

redis backed memoization helpers
https://github.com/levicook/memodis

Last synced: 10 months ago
JSON representation

redis backed memoization helpers

• Host: GitHub
• URL: https://github.com/levicook/memodis
• Owner: levicook
• License: mit
• Created: 2010-02-12T02:01:31.000Z (over 16 years ago)
• Default Branch: master
• Last Pushed: 2010-02-15T03:10:49.000Z (over 16 years ago)
• Last Synced: 2025-10-09T15:51:24.407Z (10 months ago)
• Language: Ruby
• Size: 86.9 KB
• Stars: 26
• Watchers: 0
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.rdoc
  • License: LICENSE

Awesome Lists containing this project

README

          
= memodis

semi-transparent memoization; backed by redis;

writes are sent to the master, reads are sent to an approriate slave.

Two features:

1. Memodis#memoize

1. Memodis::DistCache

== Example

  def fib(num)

    return num if num < 2

    fib(num - 1) + fib(num - 2)

  end

  puts "Before memoize: "

  puts fib(33) => 3524578 # after ~ 7 seconds

  extend Memodis

  memoize :fib, Memodis::DistCache.new({

    :key_gen => lambda { |k| "fib(#{k})" },

    :decoder => :integer,

    :expires => (10 * 60),

    :master  => '127.0.0.1:16379 127.0.0.1:16380'.split,

    :slaves  => '127.0.0.1:16389 127.0.0.1:16390 

                 127.0.0.1:16391 127.0.0.1:16392

                 127.0.0.1:16393 127.0.0.1:16394'.split

  })

  puts "After memoize: "

  puts fib(33) => 3524578 # after ~ 0.03   seconds

  puts fib(33) => 3524578 # after ~ 0.0001 seconds

  puts fib(33) => 3524578 # after ~ 0.0001 seconds

== Background

1. http://blog.grayproductions.net/articles/caching_and_memoization

1. http://code.google.com/p/redis & http://github.com/ezmobius/redis-rb

== Important Moving Parts

1. http://code.google.com/p/redis/wiki/GetCommand

1. http://code.google.com/p/redis/wiki/SetCommand

1. http://code.google.com/p/redis/wiki/SetnxCommand

== Note on Patches/Pull Requests

 

* Fork the project.

* Make your feature addition or bug fix.

* Add tests for it. This is important so I don't break it in a

  future version unintentionally.

* Commit, do not mess with rakefile, version, or history.

  (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)

* Send me a pull request. Bonus points for topic branches.

== Copyright

Copyright (c) 2010 levicook@gmail.com. See LICENSE for details.