cloby.rb

require 'clojure'
 
class MyClojureObj < Clojure::Object
  def initialize
    dosync { @foo = 'foo' }
  end
 
  attr_accessor :foo
end
 
obj = MyClojureObj.new
puts "obj.foo = " + obj.foo
 
begin
  puts "Setting obj.foo to 'bar'"
  obj.foo = 'bar'
rescue ConcurrencyError
  puts "Oops, need a transaction"
end
 
puts "Trying again with a transaction"
dosync { obj.foo = 'bar' }
puts "Success"
 
puts "obj.foo = " + obj.foo