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我是Autofac和IOC概念的新手。我有以下代碼，我沒有得到或理解它在做什麼。AutoFac IRegistrationBuilder
`
public void AddComponentInstance<TService>(object instance, string key = "", ComponentLifeStyle lifeStyle = ComponentLifeStyle.Singleton)
{
AddComponentInstance(typeof(TService), instance, key, lifeStyle);
}
public void AddComponentInstance(Type service, object instance, string key = "",ComponentLifeStyle lifeStyle = ComponentLifeStyle.Singleton)
{
UpdateContainer(x =>
{
var registration = x.RegisterInstance(instance).Keyed(key, service).As(service).PerLifeStyle(lifeStyle);
});
}
public void UpdateContainer(Action<ContainerBuilder> action)
{
var builder = new ContainerBuilder();
action.Invoke(builder);
builder.Update(_container);
}
public static class ContainerManagerExtensions
{
public static Autofac.Builder.IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle> PerLifeStyle<TLimit, TActivatorData, TRegistrationStyle>(this Autofac.Builder.IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle> builder, ComponentLifeStyle lifeStyle)
{
switch (lifeStyle)
{
case ComponentLifeStyle.LifetimeScope:
return HttpContext.Current != null ? builder.InstancePerHttpRequest() : builder.InstancePerLifetimeScope();
case ComponentLifeStyle.Transient:
return builder.InstancePerDependency();
case ComponentLifeStyle.Singleton:
return builder.SingleInstance();
default:
return builder.SingleInstance();
}
}
}
` 從上面的代碼我的理解是，我們正在註冊的Singleton實例集裝箱，我們正在更新容器。我在網上搜索IRegistrationBuilder接口的例子，但我無法得到任何滿意的答案。
任何人都可以請幫我理解IRegistrationBuilder的概念。
我指的是來自NopCommerce應用程序的這段代碼。 在此先感謝。