What is ApplicationContext in java?
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.
When should I use BeanFactory and ApplicationContext?
The ApplicationContext comes with advanced features, including several that are geared towards enterprise applications, while the BeanFactory comes with only basic features. Therefore, it’s generally recommended to use the ApplicationContext, and we should use BeanFactory only when memory consumption is critical.
What is Defaultlistablebeanfactory?
Default implementation of the ListableBeanFactory and BeanDefinitionRegistry interfaces: a full-fledged bean factory based on bean definition objects. Typical usage is registering all bean definitions first (possibly read from a bean definition file), before accessing beans.
What is ApplicationContext and BeanFactory?
BeanFactory and ApplicationContext both are Java interfaces and ApplicationContext extends BeanFactory. Both of them are configuration using XML configuration files. In short BeanFactory provides basic Inversion of control(IoC) and Dependency Injection (DI) features while ApplicationContext provides advanced features.
What is ApplicationContext and what are its functions?
ApplicationContext is a corner stone of a Spring Boot application. It represents the Spring IoC container and is responsible for instantiating, configuring, and assembling the beans. The container gets its instructions on what objects to instantiate, configure, and assemble by reading configuration metadata.
What is the difference between BeanFactory and ApplicationContext in Spring Framework?
One is BeanFactory and the other is Application Context. The application context interface extends BeanFactory to enhance the functionality of BeanFactory. In new Spring versions, BeanFactory is replaced with ApplicationContext. But still, BeanFactory exists for backward compatibility.
How do you use bean factory?
Beans are java objects that are configured at run-time by Spring IoC Container. BeanFactory represents a basic IoC container which is a parent interface of ApplicationContext….Spring – BeanFactory.
| Method | Description |
|---|---|
| getBean(String name, Class requiredType) | Return an instance, which may be shared or independent, of the specified bean. |
What is DefaultListableBeanFactory spring?
DefaultListableBeanFactory is the last subclass of beanFactory system, the only operation class and the only implementation. DefaultListableBeanFactory inherits AbstractAutowireCapableBeanFactory and implements the ConfigurableListableBeanFactory interface.
Which is the valid way of creating ApplicationContext interface?
As opposed to the BeanFactory , which will often be created programmatically, ApplicationContext instances can be created declaratively using for example a ContextLoader . Of course you can also create ApplicationContext instances programmatically using one of the ApplicationContext implementations.