What is ConfigurableApplicationContext?

What is ConfigurableApplicationContext?

Interface ConfigurableApplicationContext. Provides facilities to configure an application context in addition to the application context client methods in the ApplicationContext interface. Configuration and lifecycle methods are encapsulated here to avoid making them obvious to ApplicationContext client code.

Why we use ApplicationContext XML in spring?

Spring lets you define multiple contexts in a parent-child hierarchy. The applicationContext. xml defines the beans for the “root webapp context”, i.e. the context associated with the webapp.

What is AbstractApplicationContext?

Class AbstractApplicationContext. In contrast to a plain bean factory, an ApplicationContext is supposed to detect special beans defined in its bean factory: Therefore, this class automatically registers BeanFactoryPostProcessors, BeanPostProcessors and ApplicationListeners that are defined as beans in the context.

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() .

What is SpringApplicationBuilder?

SpringApplicationBuilder is a builder for SpringApplication and ApplicationContext instances with convenient fluent API and context hierarchy support.

What is ConfigurableEnvironment?

Interface ConfigurableEnvironment Provides facilities for setting active and default profiles and manipulating underlying property sources. Allows clients to set and validate required properties, customize the conversion service and more through the ConfigurablePropertyResolver superinterface.

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 ApplicationContext XML file used for?

Applicationcontext. xml – It is standard spring context file which contains all beans and the configuration that are common among all the servlets. It is optional file in case of web app. Spring uses ContextLoaderListener to load this file in case of web application.

What is registerShutdownHook?

In spring, registerShutdownHook() method is used to shut down IoC container in non-web applications. It shuts down IoC container gracefully. In web-based application ApplicationContext already implements code to shut down the IoC container properly.

What is application context in spring?

The Application Context is Spring’s advanced container. Similar to BeanFactory, it can load bean definitions, wire beans together, and dispense beans upon request. FileSystemXmlApplicationContext − This container loads the definitions of the beans from an XML file.

What is Spring Applicationcontext?

What is the difference between applicationcontext vs webapplicationcontext in Spring MVC?

This tutorial explains the difference between Application Context vs Web Application Context in spring mvc. The ApplicationContext and WebApplicationContext both are almost same thing but there are some basic differences related to the web aware environment. In Spring ApplicationContext instances can be scoped.

What is applicationcontext XML file in Java?

File applicationContext.xml is loaded by ContextLoaderLoaderLinstner which is configured into web.xml file as the context configuration. The default location and name of the Root Application Context are under WEB-INF folder and applicationContext.xml respectively and throw FileNotFoundException if it could not find this file in this location.

Why do we use applicationcontext in Spring Boot?

Furthermore, it provides more enterprise-specific functionalities. The important features of ApplicationContext are resolving messages, supporting internationalization, publishing events, and application-layer specific contexts. This is why we use it as the default Spring container. 3. What Is a Spring Bean?

How many application context are there in a single web application?

There will be only one application context per web application. WebApplicationContext in Spring is web aware ApplicationContext i.e it has Servlet Context information. In single web application there can be multiple WebApplicationContext. That means each DispatcherServlet associated with single WebApplicationContext.