应用程序中的很多组件都会依赖其他的服务组件,很多依赖一些不合法的组件或者容器中没有的组件,例如int类型、string类型、TimeSpan类型
Windsor支持以上的场景,注册API有DependsOn方法。该方法接收一个参数(由Dependency类的静态方法返回值提供)
1. 支持静态依赖 Dependency.OnValue
var twitterApiKey = @"the key goes here";container.Register(
Component.For<ITwitterCaller>().ImplementedBy<MyTwitterCaller>()
.DependsOn(Dependency.OnValue("APIKey", twitterApiKey))
);
这个例子通过名称进行依赖匹配,它将提供对应的值给MyTwitterCaller类中名为“APIKey”的属性或者构造函数参数
2.通过类型依赖
var config = new TwitterApiConfiguration {
// set all the properties here...
};container.Register(
Component.For<ITwitterCaller>().ImplementedBy<MyTwitterCaller>()
.DependsOn(Dependency.OnValue<TwitterApiConfiguration>(config))
);
3. 设置属性 Setting up properties: Property.ForKey()
container.Register(
Component.For<ICustomer>().ImplementedBy<CustomerImpl>()
.DependsOn(Property.ForKey("Name").Eq("Caption Hook"), Property.ForKey("Age").Eq()));
4. 明确的服务依赖 Dependency.OnComponent()
container.Register(
Component.For<ITransactionProcessingEngine>().ImplementedBy<TransactionProcessingEngine>()
.DependsOn(Dependency.OnComponent("Logger", "secureLogger"))
);
5. 依赖配置文件 appSettings dependencies: Dependency.OnAppSettingsValue()
container.Register(
Component.For<ITwitterCaller>().ImplementedBy<MyTwitterCaller>()
.DependsOn(Dependency.OnAppSettingsValue("timeout", "twitterApiTimeout"))
);
6.
container.Register(
Component.For<MainViewModel>()
.DependsOn(Dependency.OnResource<MyApp.Properties.Resources>("DisplayName", "MainWindowTitle"))
);
Embedded resource dependencies: Dependency.OnResource()
7. Supplying dynamic dependencies
container.Register(
Component.For<ClassWithArguments>()
.LifestyleTransient()
.DynamicParameters((k, d) => d["createdTimestamp"] = DateTime.Now)
);