# File lib/dm-core/transaction.rb, line 134
    def rollback
      unless @state == :begin
        raise "Illegal state for rollback: #{@state}"
      end
      each_adapter(:rollback_adapter_if_begin, [:rollback_and_close_adapter_if_begin, :close_adapter_if_none])
      each_adapter(:close_adapter_if_open, [:log_fatal_transaction_breakage])
      @state = :rollback
    end