StructureMap Constructor arguments

Question

I'm new to structureMap. How do I define constructor arguments for the following class with fluent configuration? Thanks

  public BlobContainer(CloudStorageAccount account
              , string containerName
              , string contentType
              , BlobContainerPermissions blobContainerPermissions)
  {

  }

score 19 · Answer 1 · answered Apr 18 '11 at 11:41

19

For primitive types you would go about as @ozczecho answered:

For<BlobContainer>()
  .Use<BlobContainer>()
  .Ctor<string>("containerName").Is("theContainerName")
  .Ctor<string>("contentType").Is("theContentType");

provided that the values are known at registration time. You can do it this way for non-primitive types as well, but you lose the flexibility that the container gives you this way. It's better to define a default or named instance and use that instead (the container will automatically resolve default instances for you). By defining defaults you can easily change all the dependencies on a type in your application by changing just one registation.

For<CloudStorageAccount>().Use<TheCloudStorageAccountType>();

If a dependency is a concrete type with a constructor having dependencies that are known to structuremap you don't have to register it with the container, it will be automatically resolved.

So if CloudStorageAccount is a concrete class you only need to register it's dependencies in Structure Map.

answered Apr 18 '11 at 11:41

PHeiberg

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Sorry PHeiberg, I accidently clicked on down vote..and now cannot undo my action. – ozczecho Nov 16 '11 at 01:23
@PHeiberg: If I need instances of BlobContainer in different places but each place I need different argument for the constructor, how can I provide it if the arguments are not known in registration time? – Naor Jul 18 '12 at 19:43
@Naor: Then you have to register a BlobContainerFactory (a class that knows how to construct a BlobContainer with the correct arguments), or a Func (which has access to the context needed for creating the container). – PHeiberg Jul 21 '12 at 10:03
@PHeiberg: Do you have an example of that? – Naor Jul 22 '12 at 09:26
@Naor: Not a specific link or piece of code. It's better if you ask a new question, with your specific scenario. – PHeiberg Jul 23 '12 at 06:29

score 3 · Answer 2 · answered Apr 18 '11 at 03:52

        For<BlobContainer>()
            .HybridHttpOrThreadLocalScoped()
            .Use<BlobContainer>()
            .Ctor<CloudStorageAccount >("account").Is(...)
            .Ctor<string >("containerName").Is(...)
            .Ctor<string >("contentType").Is(...)
            .Ctor<BlobContainerPermissions >("blobContainerPermissions").Is(...);

StructureMap Constructor arguments

2 Answers2

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