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Revision: 23999
at February 18, 2010 09:56 by sai-venkat
Updated Code 
require "java"
require "clojure.jar"
include_class "clojure.lang.LockingTransaction"
include_class "clojure.lang.Ref"

my_account = Ref.new(1)

puts "Initial value #{my_account.deref}"

begin
  my_account.set(1000)
rescue java.lang.IllegalStateException
  puts "Reference updated outside a transaction.. Naughty.. :)"
end

puts "Value after failed update #{my_account.deref}"

Thread.new {LockingTransaction.run_in_transaction(Proc.new { my_account.set 1000 })}

Thread.new {LockingTransaction.run_in_transaction(Proc.new { sleep 0.1; my_account.set 21000 })} # Will fail because get commited after first transaction 

puts "Value after successful transaction #{my_account.deref}"

Revision: 23998
at February 18, 2010 09:55 by sai-venkat
Updated Code 
require "java"
require "clojure.jar"
include_class "clojure.lang.LockingTransaction"
include_class "clojure.lang.Ref"

my_account = Ref.new(1)

puts "Initial value #{my_account.deref}"

begin
  my_account.set(1000)
rescue java.lang.IllegalStateException
  puts "Reference updated outside a transaction.. Naughty.. :)"
end

puts "Value after failed update #{my_account.deref}"

Thread.new {LockingTransaction.run_in_transaction(Proc.new { my_account.set 1000 })}
Thread.new {LockingTransaction.run_in_transaction(Proc.new { sleep 0.1; my_account.set 21000 })} # Will fail because get commited after first transaction 

puts "Value after successful transaction #{my_account.deref}"

Revision: 23997
at February 18, 2010 09:30 by sai-venkat
Initial Code 
require "java"
require "clojure.jar"
include_class "clojure.lang.LockingTransaction"
include_class "clojure.lang.Ref"

my_account = Ref.new(1)

puts "Initial value #{my_account.deref}"

begin
  my_account.set(1000)
rescue java.lang.IllegalStateException
  puts "Reference updated outside a transaction.. Naughty.. :)"
end

puts "Value after failed update #{my_account.deref}"

LockingTransaction.run_in_transaction(Proc.new { my_account.set 1000 })

puts "Value after successful transaction #{my_account.deref}"
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
Clojure STM in JRuby

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
ruby

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
Ruby