DryIoc,Spring.Net的GetObjectsOfType是否等效? [英] DryIoc, Spring.Net's GetObjectsOfType equivalent?
本文介绍了DryIoc,Spring.Net的GetObjectsOfType是否等效?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
使用Spring.Net,可以查询某种(祖先)类型的所有对象.
With Spring.Net, it's possible to query all objects of a certain (ancestor) type.
var ctx = ContextRegistry.GetContext();
var setUsers = ctx.GetObjectsOfType(typeof(ISetUser)).Values.OfType<ISetUser>().ToList();
如何用DryIoc完成
How can this be done with DryIoc?
推荐答案
给出示例类和接口的直接答案是:
The direct answer given sample classes and interfaces would be:
public interface IA { }
public interface IB { }
public class AB : IA, IB { }
public class AA : IA { }
[Test]
public void Resolve_all_services_implementing_the_interface()
{
var container = new Container();
container.Register<IB, AB>();
container.Register<AA>();
// resolve IA's, even if no IA service type was registered
var aas = container.GetServiceRegistrations()
.Where(r => typeof(IA).IsAssignableFrom(r.Factory.ImplementationType ?? r.ServiceType))
.Select(r => (IA)container.Resolve(r.ServiceType))
.ToList();
Assert.AreEqual(2, aas.Count);
}
如果您要检索某个接口,则最好从头开始进行注册(为此计划):
If you will want to retrieve some interface, it probably good to register it from the start (plan for it):
[Test]
public void Resolve_automatically_registered_interface_services()
{
var container = new Container();
// changed to RegisterMany to automatically register implemented interfaces as services
container.RegisterMany<AB>();
container.RegisterMany<AA>();
// simple resolve
var aas = container.Resolve<IList<IA>>();
Assert.AreEqual(2, aas.Count);
}
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