CODEWITHSUNDEEP
springspring-bean
Sunil Dabburi
Sunil Dabburi

Reputation: 1472

Spring annotation to initialize a bean during Autowire

Do we have a spring annotation that provides an option to initialize a bean (not a component) if not available through default constructor while autowiring?

If yes, that will be awesome. I am tired of initializing beans in some configuration class using default constructor and it occupies space.

I am doing this currently

@Bean
public Test test() {
    return new Test();
}

Expecting:

Sometime like:

@Autowire(initMethodType=constructor)
private Test test:

If no, was there no real need of such annotation or any technical limitation?

Upvotes: 0

Views: 1827

Answers (2)

Niby
Niby

Reputation: 494

You could annotate your class with @Component, like this:

@Component
public class Test {
    ...
}

Whereever you need that class, you could then simply autowire it:

@Autowired
private Test test;

You would just have to make sure, that you use @ComponentScan to pick up that bean. You can find more information on that here.

Upvotes: 0

Pavan Andhukuri
Pavan Andhukuri

Reputation: 1617

You have to use @Bean annotation inside an @Configuration class.

Check the following link

https://docs.spring.io/spring-javaconfig/docs/1.0.0.M4/reference/html/ch02s02.html

@Configuration
public class AppConfig {
    @Bean
    public TransferService transferService() {
        return new TransferServiceImpl();
    }
}

Upvotes: 1

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