Question

以下代码将输出：

Event published
Command executed

使用System.Transactions如何在父事务中登记EventPublisher，使其仅在CommandHandler完成时执行。因此输出将是：

Command executed
Event published

代码：

class Program
    {
        static void Main(string[] args)
        {           
            var handler = new CommandHandler();
            handler.Execute();

            Console.ReadLine();
        }
    }

    public class CommandHandler
    {
        public void Execute()
        {
            var foo = new Foo();
            foo.DoSomething();

            Console.WriteLine("Command executed");
        }
    }

    public class EventPublisher
    {
        public void PublishEvent()
        {
            Console.WriteLine("Event published");
        }
    }
public class Foo
{
    public void DoSomething()
    {
        new EventPublisher().PublishEvent();
    }
}

Answer 1

我认为您需要的是跨越所有代码的事务旁边的异步代码执行

Answer 2

解决方案实际上是通过实施IEnlistmentNotification来登记交易。

仅在父事务完成时执行代码

2 个答案: