Commit 144a249

@@ -1,4 +1,6 @@
 class ContainerConfiguration
+  extend Command
+
   def self.run(container)
     container.register(:event_aggregator) { EventAggregator.new }.as_singleton
     container.register(:shell) { ApplicationShell.new }.as_singleton

@@ -1,4 +1,6 @@
 class EventsRegistration
+  extend Command
+
   def self.run(container)
     register_items_with(container.resolve(:event_aggregator))
   end

@@ -0,0 +1,5 @@
+module Command
+  def then(other_command)
+    CompositeCommand.new(self, other_command)
+  end
+end

@@ -0,0 +1,11 @@
+class CompositeCommand
+  def initialize(first, last)
+    @first = first
+    @last = last
+  end
+
+  def run(*args)
+    @first.run(*args)
+    @last.run(*args)
+  end
+end

@@ -1,6 +1,7 @@
 require 'rubygems'
 require 'bundler'
 Bundler.require(:default)
+require_relative 'utility/command.rb'
 
 Dir["lib/**/*.rb"].each do |file|
   $:.unshift(File.dirname(file)) unless $:.include?(File.dirname(file))
@@ -11,8 +12,8 @@ class Application
   def run(arguments)
     Gtk.init
     container = Spank::Container.new
-    ContainerConfiguration.run(container)
-    EventsRegistration.run(container)
+    ContainerConfiguration.then(EventsRegistration).run(container)
+
     container.resolve(:shell_presenter).present
     Gtk.main
   end