Question

If I have 2 beans in my ApplicationContext implementing the same interface I can mark one of them as primary in the bean definition. This bean is prefered for dependency injection.

Is there a way to get direct access using the ApplicationContext to the primary one without DI?

Answer 1

First you need your BeanFactory/ApplicationContext. You can retrieve it for example by implementing BeanFactoryAware. Assuming it is ConfigurableListableBeanFactory, you can check what’s primary for given type like this:

  ConfigurableListableBeanFactory clbf =
        (ConfigurableListableBeanFactory)beanFactory;
  String[] beanNames = clbf.getBeanNamesForType(myType);
  for (String beanName : beanNames) {
     BeanDefinition bd = clbf.getBeanDefinition(beanName);
     if (bd.isPrimary()) {
        ...
     }
  }