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Ruby/Cache 0.3

What is Ruby/Cache

Ruby/Cache is a library for caching objects based on the LRU algorithm for Ruby. The official page is ((<URL:www.nongnu.org/pupa/ruby-cache.html>)).

How to install

(1) $ ruby install.rb config (2) $ ruby install.rb setup (3) $ ruby install.rb install

How to use

Here is a simple usage:

require 'cache'

cache = Cache.new
cache['foo'] = 'bar'
p cache['foo']
cache.invalidate('foo')
p cache['foo']

=>

"bar"
nil

This is a more complicated example:

# Set the maximum number of cached objects and the expiration time to
# 100 and 60 (secs), respectively.
cache = Cache.new(nil, nil, 100, 60)
puts 'I will generate a prime number greater than any given number!'
while true
  puts 'Input an integer: '
  i = gets.to_i
  puts cache.fetch(i) { generate_prime_greater_than(i) }
end

License

You may redistribute it and/or modify it under the same term as Ruby's.

Author

((<Yoshinori K. Okuji|URL:www.enbug.org/>)) ((<<okuji@enbug.org>|URL:okuji@enbug.org>))

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