Bean definition inheritance with annotations?

by

There is no notion of abstract bean in java config because the java language already has everything you need. Don’t forget that abstract beans are not exposed in the context at all, it’s some kind of template.

You could rewrite your code above as follows:

@Configuration
public class Config {

    @Bean
    public DerivedTestBean() {
        DerivedTestBean bean = new DerivedTestBean();
        initTestBean(bean);
        bean.setName("override");
        return bean;
    }

    private void initTestBean(TestBean testBean) {
        testBean.setName("parent");
        testBean.setAge(1);
    } 
}

If the initTestBean should be shared, you can just as well make it public and inject Config in other places if you need to.

More Related Contents:

  1. ‘Field required a bean of type that could not be found.’ error spring restful API using mongodb
  2. Use of multiple DataSources in Spring Batch
  3. Spring Boot – inject map from application.yml
  4. Handling soft-deletes with Spring JPA
  5. Understanding spring @Configuration class
  6. Must Spring component classes be thread-safe
  7. How to stop a scheduled task that was started using @Scheduled annotation?
  8. The matching wildcard is strict, but no declaration can be found for element ‘context:component-scan
  9. How to register Spring @Configuration annotated class instead of applicationContext.xml file in web.xml?
  10. How to use multiple @RequestMapping annotations in spring?
  11. Mockito, JUnit and Spring
  12. Spring 3.1 Hibernate 4 exception for Inheritance [cannot be cast to org.hibernate.mapping.RootClass]
  13. How can I read request body multiple times in Spring ‘HandlerMethodArgumentResolver’?
  14. @Autowired and static method
  15. How to apply Spring Security filter only on secured endpoints?
  16. Configuration using annotation @SpringBootApplication
  17. Can not find the tag library descriptor of springframework
  18. What exactly is Spring Framework for? [closed]
  19. How to check String in response body with mockMvc
  20. Registering beans(prototype) at runtime in Spring
  21. Spring Annotation-based controllers not working if it is inside jar file
  22. Spring @RequestBody containing a list of different types (but same interface)
  23. Autowire a bean within Spring’s Java configuration
  24. How to persist LocalDate with JPA?
  25. Reload or refresh a Spring application context inside a test method?
  26. NoSuchFieldError when trying to run a jUnit test with Spring
  27. How to handle DataIntegrityViolationException in Spring?
  28. Immutable @ConfigurationProperties
  29. Is it possible to have multiple PropertyPlaceHolderConfigurer in my applicationContext?
  30. How to unit test a Spring MVC controller using @PathVariable?

Leave a Comment