class Jerry

Inversion of Control container.

This class is in charge of bootstrapping your application. This is done by defining {Jerry::Config configs}.

@example Basic usage

class FooConfig < Jerry::Config
  # ...
end

class BarConfig < Jerry::Config
  # ...
end

jerry = Jerry.new FooConfig.new, BarConfig.new
jerry[SomeClass] #=> #<Someclass:...>

Constants

VERSION

Public Class Methods

new(*configs) click to toggle source

@param configs [Array<Jerry::Config>] configurations describing how to wire

your application

# File lib/jerry.rb, line 24
def initialize(*configs)
  configs.each { |conf| conf.jerry = self }

  @configs = configs
end

Public Instance Methods

[](key) click to toggle source

@param key what to provide @return an insance of the sepcified key provided by one of the configs @raise [Jerry::InstantiationError] if can't instanciate key

# File lib/jerry.rb, line 33
def [](key)
  config = @configs.find { |conf| conf.knows? key }
  unless config
    raise Jerry::InstantiationError, "Can't find #{key} in any config"
  end

  config[key]
end