Cachew

DISCONTINUED

Simple (and unified) cache interface.

Installation

Add this line to your application's Gemfile:

gem 'cachew'

And then execute:

$ bundle

Or install it yourself as:

$ gem install cachew

Usage

# In-memory Hash
cache = Cachew::Hash.new

cache.fetch(:foo) { Time.now.to_i } # => 1405724687
cache.fetch(:foo) { Time.now.to_i } # => 1405724687

# With ttl
cache.fetch(:foo, :ttl => 10) { Time.now.to_i } # => 1405724689

# Before 10 seconds will expire
cache.fetch(:foo, :ttl => 10) { Time.now.to_i } # => 1405724689

# Once 10+ seconds pass
cache.fetch(:foo, :ttl => 10) { Time.now.to_i } # => 1405724695

# Withot cache (think of it as NullLogger)
cache = Cachew::Null.new

cache.fetch(:foo) { Time.now.to_i } # => 1405724687
cache.fetch(:foo) { Time.now.to_i } # => 1405724688

You can easily write your own adapters:

class Cachew::Redis < Cache::Adapter
  def initialize(client)
    @client = client
  end

  private

  def __set__(key, val, ttl)
    val = Marshal.dump val

    if 0 == ttl
      @client.set key, val
    else
      @client.setex key, val, ttl
    end
  end

  def __get__(key)
    val = @client.get(key)
    val ? Marshal.load(val) : UNDEFINED
  end

  def __key__(*)
    "cachew:#{super}"
  end
end

Contributing

1. Fork it ( http://github.com//cachew/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request