MemoizeTtl

Simple memoize with an expiration time (time-to-live).

MemoizeTtl is not a key based storage. MemoizeTtl is an instance variable storage system backed by a ruby macro that writes getter/generator methods with an expire check pattern for you.

Use Cases

• In process, decentralized cache
• Volatile data debouncing
• Cache with-in cache. Self-expiring memoized values are serializable.

Installation

Add this line to your application's Gemfile:

gem 'memoize_ttl'

And then execute:

$ bundle

Or install it yourself as:

$ gem install memoize_ttl

Usage

This example re-evaluates fish if its called later than 5 seconds apart.

class Taco
 extend MemoizeTtl
 memoize_ttl :fish, 5 do
   puts "eval"
   "salmon"
 end
end