Diva is a dependency injection framework for GLib-based applications. Dependencies between classes can be managed so that apllications stay maintainable as they grow. Diva is designed to be used with the Vala programming language

Components that provide services are registered with a ContainerBuilder

var builder = new ContainerBuilder();

Diva can use a delegate, a type, or an exising instance:

builder.register<FooService>(ctx => new FooComponent());
builder.register<FooComponent>().as<FooService>();
builder.registerInstance<FooService>(new FooComponent());

calling Build() creates a container

var container = builder.build();

instances of a service can then be requested using resolve()

var fooService = container.resolve<FooService>();

Dependencies are expressed as public properties of the component

public class FooComponent : Object, FooService
{
    public BarService bar { construct; private get; }
}

When constructing a FooComponent, Diva will look for a component that provides BarService and set the property bar to a new instance of it.