Create non Spring Boot object

Question

Lets say that I have a model for an object X, this object implements all the CRUD operations with the help of Spring Boot.

Now, I need to be able to edit this object using an standard POJO. The POJO looks like this:

public class Foo {
    @Autowired
    private XRepository xDAO;
    /*
      Do whatever I want with X and then save it again in the DB using xDAO
    */
}

So far I've tried using @Configurable, @Component and even @Service, but neither of those can @Autowire my XRepository.

What can I do?

Is Foo managed by spring? Is XRepository a spring-data repository? — Mikhail Boyarsky, May 21 '17 at 04:33
Foo is not managed by spring. All I want to do, if its possible, is just `Foo f = new Foo(); f.whatever()` — Alberto Alegria, May 21 '17 at 04:35
`@Autowired` will not work on objects which are not managed by spring. You can sorta inject xDAO to your Foo manually (outside of Spring DI container): `Foo foo = new Foo(); foo.xDAO = ctx.getBean(XRepository.class);` — Mikhail Boyarsky, May 21 '17 at 04:38

score 0 · Answer 1 · answered May 21 '17 at 05:38

What you describe is not possible. Components can be wired only if the object is managed by Spring. In your case it's not and as such it's not possible to autowire in any dependency. You have various options. Here are some:

Use repository outside of Foo class. Orchestrate the operations in another class that is managed by Spring
Pass repository as dependency to Foo in the constructor by class that is managed by Spring
This is somewhat hacky and probably not recommended but you can make repository a static variable in Foo and set it up by Spring managed component in something like @PostConstruct

In my opinion the best is to use option 1.

score -1 · Answer 2 · edited May 23 '17 at 12:02

-1

I think that I didn't express myself sufficiently, either way I found a solution to my problem.

The solution is here.

I only declared Foo as a @Service, then I just @Autowired Foo:

@Autowired
public class Foo {
@Autowired
    private XRepository xDAO;
    //some code
}

Then I call this class using the @Autowired annotation

@Autowired Foo foo
foo.doThings();

edited May 23 '17 at 12:02

Community

1
1

answered May 21 '17 at 06:07

Alberto Alegria

1,023
10
26

Create non Spring Boot object

2 Answers2