StructureMap 类链接 - 堆栈溢出或其他错误

发布于 2024-08-04 14:46:31 字数 1103 浏览 4 评论 0原文

这让我对许多配置感到完全困惑。我一直在阅读文档，但我就是不明白。这是我的注册代码：

ForRequestedType<SimpleWorkItemProcessor>().TheDefault.Is.OfConcreteType<SimpleWorkItemProcessor>();

ForRequestedType<WorkItemRetryProcessor>().TheDefault.Is.OfConcreteType<WorkItemRetryProcessor>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<SimpleWorkItemProcessor>())
    .WithCtorArg("busyDelay").EqualTo(TimeSpan.FromMilliseconds(20))
    .WithCtorArg("overallTimeout").EqualTo(TimeSpan.FromSeconds(60));

ForRequestedType<WorkItemQueue>().TheDefault.Is.OfConcreteType<WorkItemQueue>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<WorkItemRetryProcessor>());

事实上，它表示 IWorkItemProcessor 没有默认实例（这是正确的）。将最后一行切换为：

ForRequestedType<IWorkItemProcessor>().TheDefault.Is.OfConcreteType<WorkItemQueue>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<WorkItemRetryProcessor>());

...产生堆栈溢出异常。

如何将既实现接口又在其构造函数中采用相同接口的类链接在一起？

原文

This has completely baffled me on a number of configurations. I keep reading the documentation, and I just don't get it. Here is my registration code:

ForRequestedType<SimpleWorkItemProcessor>().TheDefault.Is.OfConcreteType<SimpleWorkItemProcessor>();

ForRequestedType<WorkItemRetryProcessor>().TheDefault.Is.OfConcreteType<WorkItemRetryProcessor>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<SimpleWorkItemProcessor>())
    .WithCtorArg("busyDelay").EqualTo(TimeSpan.FromMilliseconds(20))
    .WithCtorArg("overallTimeout").EqualTo(TimeSpan.FromSeconds(60));

ForRequestedType<WorkItemQueue>().TheDefault.Is.OfConcreteType<WorkItemQueue>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<WorkItemRetryProcessor>());

As it is, it says there's no default instance for IWorkItemProcessor (which is correct). Switching the last line to this:

ForRequestedType<IWorkItemProcessor>().TheDefault.Is.OfConcreteType<WorkItemQueue>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<WorkItemRetryProcessor>());

...Makes a stack overflow exception.

How do you chain classes together that both implement an interface, and take in that same interface in their constructor?

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风筝有风，海豚有海 2024-08-11 14:46:31

这有效，但我无法解释为什么。据我所知，第一个版本应该也能正常工作。

ForRequestedType<SimpleWorkItemProcessor>().TheDefault.Is.OfConcreteType<SimpleWorkItemProcessor>();

var retryProcessor = ForRequestedType<WorkItemRetryProcessor>().TheDefault.Is.OfConcreteType<WorkItemRetryProcessor>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<SimpleWorkItemProcessor>())
    .CtorDependency<TimeSpan>("busyDelay").Is(x => x.Object(TimeSpan.FromMilliseconds(20)))
    .CtorDependency<TimeSpan>("overallTimeout").Is(x => x.Object(TimeSpan.FromSeconds(60)));

ForRequestedType<IWorkItemProcessor>().TheDefault.Is.OfConcreteType<WorkItemQueue>()
    .CtorDependency<IWorkItemProcessor>("workItemProcessor").Is(x => x.Instance(retryProcessor));

This works, but I can't explain why. From what I know, the first version should work just as well.

ForRequestedType<SimpleWorkItemProcessor>().TheDefault.Is.OfConcreteType<SimpleWorkItemProcessor>();

var retryProcessor = ForRequestedType<WorkItemRetryProcessor>().TheDefault.Is.OfConcreteType<WorkItemRetryProcessor>()
    .CtorDependency<IWorkItemProcessor>().Is(x => x.OfConcreteType<SimpleWorkItemProcessor>())
    .CtorDependency<TimeSpan>("busyDelay").Is(x => x.Object(TimeSpan.FromMilliseconds(20)))
    .CtorDependency<TimeSpan>("overallTimeout").Is(x => x.Object(TimeSpan.FromSeconds(60)));

ForRequestedType<IWorkItemProcessor>().TheDefault.Is.OfConcreteType<WorkItemQueue>()
    .CtorDependency<IWorkItemProcessor>("workItemProcessor").Is(x => x.Instance(retryProcessor));

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