How to autowire type Class into constructor and instantiate bean which is superclass by super()?

[Bin Smith]

Hello!

I have Spring bean that should be instantiated via constructor injection:

@Autowired
	public IntermediateUserDao(Class<T> userClass) {
		super(userClass);
	}

Here I don't know how to autowire bean of type java.lang.Class<IntermediateUser> with parameter IntermediateUser.
Super class is instantiated by super(userClass) and it is also spring bean:

@Autowired
	public JuniorUserDao(Class<T> userClass) {
		this.userClass = userClass;
	}

I need two spring beans - the first is IntermediateUserDao that has inherited methods from super class(JuniorUserDao) which is also spring bean. For inherited methods to work properly I pass Class<T> userClass by super(userClass).

Will I have two spring beans one is IntermediateUserDao that has inherited methods from super class and separately JuniorUserDao that has its own Class object injected via constructor.

Thank you!

[Carles Gasques]

Hi,

What about

	@Autowired	
	public IntermediateUserDao(IntermediateUser user) {
		super(user.getClass());
	}

Best regards,

[Bin Smith]

Hello!

I did not try this. But my IntermediateUser class is not spring bean and it is entity.
Instead I created new spring bean

@Component("domainTypePointer")
public class DomainTypePointer {

	Class<JuniorUser> juniorUserClass;
	Class<IntermediateUser> intermediateUserClass;
	Class<SeniorUser> seniorUserClass;
	Class<ExpertUser> expertUserClass;

	public DomainTypePointer() {
		juniorUserClass = JuniorUser.class;
		intermediateUserClass = IntermediateUser.class;
		seniorUserClass = SeniorUser.class;
		expertUserClass = ExpertUser.class;
	}

	public Class<JuniorUser> getJuniorUserClass() {
		return juniorUserClass;
	}

	public Class<IntermediateUser> getIntermediateUserClass() {
		return intermediateUserClass;
	}

	public Class<SeniorUser> getSeniorUserClass() {
		return seniorUserClass;
	}

	public Class<ExpertUser> getExpertUserClass() {
		return expertUserClass;
	}
}

And now constructor autowires needed property of this bean :

@Autowired
	public IntermediateUserDaoHibernate(
			@Value("#{domainTypePointer.intermediateUserClass}") Class<T> intermediateUserClass) {
		super(intermediateUserClass);
	}