How do you get the BeanFactory reference in any class?
I can have my class implement BeanFactoryAware to get a reference to my beanfactory. Then I can do beanFactory. getBean(“name”); to get access to a single bean.
What are the responsibilities of XmlBeanFactory included?
This implementation allows you to express the objects that compose your application, and the doubtless rich interdependencies between such objects, in terms of XML. The XmlBeanFactory takes this XML configuration metadata and uses it to create a fully configured system or application.
What is ClassPathXmlApplicationContext?
The ClassPathXmlApplicationContext is a class that implements the org. springframework. context. ApplicationContext interface. In this quick tutorial, we’ll learn how to work with ClassPathXmlApplicationContext.
How do you get the bean name?
By implementing BeanNameAware. So that Spring can inject the beanName into the bean. If you add a public String getBeanName(); in your DashboardDAO interface, DashboardDaoConsumer will be able to obtain it. In this particular case, Spring will inject the name you specified in the annotation.
What does ApplicationContext do in Spring?
The ApplicationContext Interface The Spring IoC container is responsible for managing the objects of an application. It uses dependency injection to achieve inversion of control. The interfaces BeanFactory and ApplicationContext represent the Spring IoC container.
Which dependency injection is better in Spring?
Setter Injection is the preferred choice when a number of dependencies to be injected is a lot more than normal, if some of those arguments are optional than using a Builder design pattern is also a good option.
How do you get a BeanFactory?
This is done by accessing the ApplicationContext’s BeanFactory through the getBeanFactory() method, which returns the BeanFactory DefaultListableBeanFactory implementation. DefaultListableBeanFactory supports this registration through the registerSingleton(..) and registerBeanDefinition(..) methods.
How does after returning advice work?
After returning advice: Advice to be executed after a join point completes normally: for example, if a method returns without throwing an exception. After throwing advice: Advice to be executed if a method exits by throwing an exception.
What is true about ApplicationContext hierarchy?
2. Application Context Hierarchy. We can have multiple application contexts that share a parent-child relationship. A context hierarchy allows multiple child contexts to share beans which reside in the parent context.
What is an ApplicationContext?
ApplicationContext is an interface for providing configuration information to an application. There are multiple classes provided by springframework that implements this interface and helps us use configuration information in applications. ApplicationContext provides standard bean factory lifecycle capabilities.
What is AnnotationConfigApplicationContext?
AnnotationConfigApplicationContext is a standalone application context which accepts annotated classes as input. For instance, @Configuration or @Component . Beans can be looked up with scan() or registered with register() .
Can we use bean and qualifier together?
NOTE: if you are creating bean with @Bean, it will be injected byType if there is duplicates then it will injected byName. we no need to mention @Bean(name=”bmwDriver”) . so you can directly use qualifier(“bmwDriver”) wherever you need in classes.