Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
233 views
in Technique[技术] by (71.8m points)

c# - Injecting arrays with Unity

My goal is to constructor inject an array of objects implementing an interface.

The following is the way I currently have it.

Container

        .RegisterInstance<Company>(ParseCompany(args[1])

        .RegisterInstance<eTargets>(ParseTargets(args[2]))

        .RegisterInstance<ILoader[]>(new ILoader[] {
            Container.Resolve<CustomerLoader>(),
            Container.Resolve<PaymentLoader(),
            Container.Resolve<InvoiceLoader() 
        });

Is it typical to call Resolve in container configuration this way or is there a more standard way to accomplish the same thing?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Unity natively understands arrays, so there's no reason to make it so complicated. Just register the ILoaders you want to include and resolve the object graphs normally. Auto-wiring will take care of the rest:

container.RegisterType<ILoader, FooLoader>("foo");
container.RegisterType<ILoader, BarLoader>("bar");
container.RegisterType<ILoader, BazLoader>("baz");

var c = container.Resolve<MyConsumer>();

assuming that the MyConsumer constructor is defined like this:

public MyConsumer(ILoader[] loaders)

However, you should be aware that (for some unfathomable reason) Unity only includes named components in this way. The default component:

container.RegisterType<ILoader, Loader>();

will not be included in the array, since it has no name.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...