Autowiring for spring unmanaged object

Question

I want to know how to Autowire sprig beans in java object that are not managed by spring application context. I have created an instance of a class and but the subsequent autowiring objects are null. for eg.

@Service
Class BaseFactory {
public BaseObject getObject(String type ){
    BaseObject object = null; 
    if(type.equalsIgnoreCase("order")){
       object = new FirstServiceObject();
    }
   else if(type.equalsIgnoreCase("payment")){
      object = new SecondServiceObject();
    }
  return object;
}

Service class

@Service
@Configurable
public class FirstServiceObject{

@Autowired
UserRepository mUserRepository;// coming as null

@Autowired
UserHelper userHelper;//coming as null

public getDownloadedData(String userName, String b){
   User user = userHelper.findUser(userName); //null pointer exception
}

}

My helper Class from where I am calling the above .

public class SomeHelper {

@Autowired
BaseFactory baseFactory;

public processUser(){
 BaseObject object = baseFactory.getObject("order");
 object.getDownloadedData("sunil","someString")
}

All the Autowired beans a coming as null inside FirstServiceObject

I have checked with all possible solution given already and none seems to be working for me.

Why are you even using a factory, that only complicates things. Why not simply inject the services directly into the classes that need it? Nonetheless, let Spring manage the services, don't create instances yourself. — M. Deinum, Aug 04 '16 at 12:59
@M.Deinum I have different use case as the response for objects returned through Factory invokes different method class at run time . here is my interface public interface DownloadResponse { List> getDownloadData(String username,String startDate); } — Sunil Sharma, Aug 04 '16 at 13:07
See [this answer](http://stackoverflow.com/a/3813725/3315474) — Konstantin Pavlov, Aug 04 '16 at 15:08

score 1 · Answer 1 · edited May 23 '17 at 12:22

Answer given in the following post solved the issue. How to inject dependencies into a self-instantiated object in Spring? This is what I have done

public class SomeHelper {

  @Autowired
  BaseFactory baseFactory;

  @Autowired
  AutowireCapableBeanFactory beanFactory;

  public processUser(){
    BaseObject object = baseFactory.getObject("order");
    beanFactory.autowireBean(object);
    object.getDownloadedData("sunil","someString");
 }
}

score 0 · Answer 2 · answered Aug 04 '16 at 13:20

0

You Can't

If you want to Autowired spring beans in your class, the class needs to be managed by Spring.

answered Aug 04 '16 at 13:20

TheEwook

11,037
6
36
55

score 0 · Answer 3 · answered Aug 04 '16 at 14:47

0

If you application is using web context, then try this

SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext(this);

answered Aug 04 '16 at 14:47

arseniyandru

760
1
7
16

Autowiring for spring unmanaged object

3 Answers3