PermaCache

Provides a dsl to add pull-through caching to a given method while also provding an interface to overwrite that cache when necessary.

Useful for expensive objects that you want to write-once on the backend while still allowing your frontend to rebuild the object if the cache clears for any reason

Installation

Add this line to your application's Gemfile:

gem 'perma_cache'

And then execute:

$ bundle

Or install it yourself as:

$ gem install perma_cache

Usage

class SomeKlass
  include PermaCache
  def slow_method
    sleep 2
    1
  end
  perma_cache :slow_method
end

> Benchmark.measure{ puts SomeKlass.new.slow_method }.real
1
=> 2.003525972366333
> Benchmark.measure{ puts SomeKlass.new.slow_method }.real
1
=> 0.001032114028930664
> Benchmark.measure{ puts SomeKlass.new.slow_method! }.real
1
=> 2.0027248859405518

Testing

Run tests with:

rake

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Run the test Suite
4. Commit your changes (git commit -am 'Add some feature')
5. Push to the branch (git push origin my-new-feature)
6. Create new Pull Request