Setter injection

gistfile1.txt

public class Bar {
}

public class Foo {
    @Autowired
    public void setBar(Bar bar) {
        System.out.println("setBar() was called");
    }
}

@Configuration
public class AppConfig {
    @Bean
    public Foo foo() {
        return new Foo();
    }

    @Bean
    public Bar bar() {
        return new Bar();
    }
}

public class Main {
    public static void main(String[] args) {
        new AnnotationConfigApplicationContext(AppConfig.class).getBean(Foo.class);
    }
}