Service registration

The registration is done with theĀ Litium.Runtime.DependencyInjection.ServiceĀ attribute with which you decorate the service contract or service implementation.

During startup all classes that are decorated with the attribute are fetched and registered with the dependency injection engine. If multiple instances of a single contract (interface or abstract class) is found and only one item is expected, the registration process will find the first implementation based on assembly naming. To alter the order, the assembly can be decorated with the following attribute.

[assembly: Litium.Runtime.AssemblyLoading(Litium.Runtime.AssemblyLoadOrder.First)]

Example of service registration:

[Litium.Runtime.DependencyInjection.Service(
    ServiceType = typeof(IMyService), 
    Lifetime = Litium.Runtime.DependencyInjection.DependencyLifetime.Transient)]
public interface IMyService
{
    void MyMethod(); // define the service contract members
}

internal class MyServiceImpl : IMyService
{
    public void MyMethod()
    {
        // do something in the method
    }
}

Example of usage of the service registration:

public class DependencyInjectionExample
{
    private readonly IMyService _myService;

    public DependencyInjectionExample(IMyService myService)
    {
        _myService = myService;
    }

    public void Method()
    {
        _myService.MyMethod();
    }
}
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