// Types used in the examples below public interface IMyService {} public class MyService : IMyService {} public interface IMyService<T> {} public class MyService<T> : IMyService<T> {}
Registering an object instance is always a singleton, by definition.
ServiceLocator.Register(new MyService());
IMyService svc1 = ServiceLocator.Get<IMyService>(); // svc1 = the instance that was registered above IMyService svc2 = ServiceLocator.Get<IMyService>(); // svc2 = the instance that was registered above (same as svc1)
Registering a a type is by default a transient dependency. It can be made a singleton by appending .Singleton() after the Register() call.
ServiceLocator.Register<MyService>().Singleton();
IMyService svc1 = ServiceLocator.Get<IMyService>(); // svc1 = a new instance of MyService IMyService svc2 = ServiceLocator.Get<IMyService>(); // svc2 = same instance as svc1
When an open generic type is registered and configured to be a singleton, a new object will be created for each combination of types used with the open generic type.
ServiceLocator.Register(typeof(MyService<>)().Singleton();
var svc1 = ServiceLocator.Get<IMyService<int>>(); var svc2 = ServiceLocator.Get<IMyService<string>>(); var svc3 = ServiceLocator.Get<IMyService<int>>(); // svc1 = instance of MyService<int> // svc2 = instance of MyService<string> // svc3 = same instance as svc1