Spring autowire a list

Spring 4 and older support the ability to automatically collect all beans of a given type and inject them into a collection or array.

Here is an example:

@Component
public class Car implements Vehicle {
}

@Component
public class Bus implements Vehicle {
}

@Component
public class User {
   @Autowired
   List<Vehicle> vehicles; // contains both car and bus
}

Ref: Spring 4 Ordering Autowired Collections