Implement a simple factory pattern with Spring 3 annotations

Question

I was wondering how I could implement the simple factory pattern with Spring 3 annotations. I saw in the documentation that you can create beans that call the factory class

Answer 1

Following answer of DruidKuma

Litte refactor of his factory with autowired constructor:

@Service
public class MyServiceFactory {

    private static final Map myServiceCache = new HashMap<>();

    @Autowired
    private MyServiceFactory(List services) {
        for(MyService service : services) {
            myServiceCache.put(service.getType(), service);
        }
    }

    public static MyService getService(String type) {
        MyService service = myServiceCache.get(type);
        if(service == null) throw new RuntimeException("Unknown service type: " + type);
        return service;
    }
}