Unity单例代码

我是新来的Unity http://unity.codeplex.com/我正在尝试编写一些 Unity 逻辑来初始化和注册/解析 Email 对象的单例实例，以便它可以在多个其他对象中使用，下面的一个示例是 OperationEntity。

因此，当它注册时，它会使用配置文件中的一些值填充电子邮件单例，然后每当创建 OperationEntity 的实例（在我的例子中它正在被反序列化）时，它都会使用相同的电子邮件单例。因此，我的所有客户端逻辑需要做的就是反序列化 OperationEntity 并调用 PerformAction() - 电子邮件实例由 Unity 处理。

public interface IEmail
{
    string FromName { get; set; }
    string FromEmailAddress { get; set; }
}

public class Email : IEmail
{
    public string FromName { get; set; }
    public string FromEmailAddress { get; set; }

    public Email(string fromName, string fromEmailAddress)
    {
        FromName = fromName;
        FromEmailAddress = fromEmailAddress;
    }
}

public class OperationEntity
{
    private readonly IEmail _email;

    public int OperationId { get; set; }
    public string OperationName { get; set; }
    public string ToAddress { get; set; }

    public OperationEntity(IEmail email)
    {
        _email = email;
    }

    public void PerformAction()
    {
        _email.ToAddress = ToAddress;
        _email.Body = "Some email body";
        _email.Deliver();
    }
}

任何帮助让这个 Unity 代码正常工作的帮助将不胜感激

    public static void Register(IUnityContainer container)
    {
        container
            .RegisterType<IEmail, Email>(
            new InjectionFactory(c => new Email(
                "To Name", 
                "[email protected] /cdn-cgi/l/email-protection")));

        var email = container.Resolve<IEmail>();  

        container.RegisterType<OperationEntity>(
            "email", new ContainerControlledLifetimeManager(),
            new InjectionConstructor(email));
    }

首先，你需要一个合适的终身经理 http://msdn.microsoft.com/en-us/library/ff647854.aspx the ContainerControlledLifetimeManager是针对单身人士的。

对于自定义初始化，您可能可以使用InjectionFactory http://bartwullems.blogspot.com/2011/03/unity-injectionfactory.html

这使您可以编写初始化实体的任何代码。

编辑1：这应该有帮助

public static void Register(IUnityContainer container)
{
    container
        .RegisterType<IEmail, Email>(
        new ContainerControlledLifetimeManager(),
        new InjectionFactory(c => new Email(
            "To Name", 
            "[email protected] /cdn-cgi/l/email-protection")));
}

and then

var opEntity = container.Resolve<OperationEntity>();

Edit2：为了支持序列化，您必须在反序列化后重建依赖项：

public class OperationEntity
{
   // make it public and mark as dependency   
   [Dependency]
   public IEmail _email { get; set;}

}

and then

OperationEntity entity = somehowdeserializeit;

// let unity rebuild your dependencies
container.BuildUp( entity );