How to create a unique identifier in Substrate? Get List of bean types from application context - Stack Overflow SortBy with a 2nd argument that specifies not to sort the list? rev2022.11.30.43068. But I cannot find the proper way to do it for my case. SpringIoCAOPIOCSpring IoC Spring IoCBeanSpring IoCBeanSpring IoCBeanFactoryApplicationContextApplicationContextBeanFactory While using this scope, make sure bean doesn't have shared instance variables otherwise it might lead to data inconsistency issues.03-Aug-2022, You can see actuator information in, http://localhost:8080/actuator. Below is the coding example for how we can get all the beans: 1) Use ApplicationContext.getBeanDefinitionNames () to find the name of all loaded beans 2) Use ApplicationContext.getBean (beanName) to get bean including its runtime type information. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How to use JNDI DataSource provided by Tomcat in Spring? Are the names of game features rules text or merely flavor? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. How to get all loaded beans in Spring Boot application By Rakesh - January 30, 2019 We can know how many beans have been created in your application using predefined API getBeanDefinitionNames () and getBeanDefinitionCount (). ApplicationContext getBean () Example: ApplicationContext context = new ClassPathXmlApplicationContext ( "applicationContext.xml" ); HelloWorld obj = ( HelloWorld) context. getApplicationContext() Return the context of the single . How get all beans from ApplicationContext? What do you call "voice-overs" that represent what the character in the ad thinks? What is the term for this derivation: "Cheeseburger comes from Hamburger" but the word hamburger didn't refer to ham. Sponsored. I think that the proper solution is with the 'ref' attribute in the controller bean specification. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Please consider disabling your ad blocker for Java4s.com, we won't encourage audio ads, popups or any other annoyances at any point, hope you support us :-) Thank you. 1) Use ApplicationContext.getBeanDefinitionNames () to find the name of all loaded beans 2) Use ApplicationContext.getBean (beanName) to get bean including its runtime type information. Find centralized, trusted content and collaborate around the technologies you use most. 4.1. How does one prove paternity if the father has an identical twin? Compile error.. sort() takes a List, not a Map, which is what getBeansOfType returns. Simply we Autowired ApplicationContext class and get all the beans by using its getDefinitionNames () methods. 1 Answer Sorted by: 7 Spring can autowire all beans of a type into list. How to instantiate Spring managed beans at runtime? In this post, we will examine how to solve the List All Managed Beans In Spring problem using examples from the programming language. 2. An ApplicationContext() Get answers and Will I get the same application context? Asking for help, clarification, or responding to other answers. 1. The ApplicationContext is a core element of a Spring Boot application. I'm interested in getting a list of beans from the Spring ApplicationContext. Expected Behavior. boolean isSingleton(): returns true if this FactoryBean returns singletons, false otherwise. Stack Overflow for Teams is moving to its own domain! The main annotation of this feature is @Autowired. My use case is to get beans of a given type during spring start up and invoke some methods on those beans. Spring Boot - Get all loaded beans with Class Type Information Using Spring Boot Actuator What would be a recommended interest rate for an unsecured loan to individuals with mediocre credit rating and income close to expenses? In that, you can find the http://localhost:8080/actuator/beans which will load all the beans internally created by springboot application.26-Oct-2015. For spring beans, I know I can do something like: But the ApplicationContext only provides a method getBeansOfType which returns an unordered map. Find many great new & used options and get the best deals for Jelly Beans 30 Years Anniversary Balloons Lapel Pin (A991) at the best online prices at eBay! By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. What we have to do is implement main class with CommandLineRunner/ApplicationRunner interface and override its run method. If you used the spring enabled JavaConfig annotations you could do the following to construct your beans and add them to the application context: One way is create a factory class and store the instances of the beans (each implementing a common interface MyBean) as values under some key in a map (beans): In your Spring applicationContext.xml now create bean a of the factory and set the beans: Finally you can inject your bean factory as usual and get instances from like e.g. Running above application will print bean names and type information in the console like below: Tags: ApplicationContext, Java, Spring Boot, Spring Core Basics Spring ApplicationContext Example - Java Guides In addition to this if your beans are annotated with the @Ordered or if the beans implement the Ordered interface, then this list will have all the beans ordered. Our brand (and design system)'s primary colour is green: how should we indicate success? The container gets its instructions on what objects to instantiate, configure, and assemble by reading configuration metadata. Android get application from applicationcontext - Australia tutorials Correct way to get beans from applicationContext Spring @Bean is used to mark a method as one that creates a bean and Spring will then add it to the context for us. Why aren't push propellers common on wing engines? How many types of beans are there in Spring? 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Users are sometimes unsure whether a BeanFactory or an ApplicationContext are best suited for use in a particular situation. On Spring ApplicationContext and Bean Creation - Marten Deinum Why aren't push propellers common on wing engines? Here is an expanded version of our JPA basic application (See Using SpringBoot with JPA tutorial ) which uses . 2. Show All Spring Boot Beans With Code Examples Perfect World Programming, LLC - iOS Apps How to Ask Questions the Smart Way FAQ. No need to implement CommandLineRunner. $9.95. In this post, we will examine how to solve the List All Managed Beans In Spring problem using examples from the programming language. This is the default spring bean scope. Spring ApplicationContext and BeanFactory stackoverflow.com. In addition to this if your beans are annotated with the @Ordered or if the beans implement the Ordered interface, then this list will have all the beans ordered. From the above section, you got an idea that ApplicationContext helps us to get all the beans present in our application. Yep, the problem is that I can't turn the legacy class into a spring controlled bean. In order to do that, the following methods can be used: 1) ApplicationContext.getBeanDefinitionNames () to find the name of all loaded beans 2) ApplicationContext.getBean (beanName) to get bean including its runtime type information. + $1.50 shipping. "Den Apfel essen, das wollte er": What is this construction called? Class getObjectType(): returns the object type returned by the getObject() method or null if the type is not known in advance. To learn more, see our tips on writing great answers. Output: Greetings, Marten Deinum! Yes. The IoC Container A bean is the foundation of a Spring-managed application; all beans reside withing the IOC container, which is responsible for managing their life Continue Reading spring-show-all-beans Show All Spring Boot Beans With Code Examples With this article, we'll look at some examples of how to address the Show All Spring Boot Beans problem . What ultimately happens to create the person and greeter beans (through reflection as mentioned earlier) is the following: Person person = new Person(); person.setName("Marten Deinum"); and. spring-show-all-beans - Get docs Spring Boot - Display All Beans Available in ApplicationContext - Java4s Services should be stateless, and hence they don't need more than one instance. ApplicationContext context = new ClassPathXmlApplicationContext ("applicationcontext/student-bean-config.xml"); StudentService studentService = context.getBean ("studentService", StudentService.class); Now, let us implement the same showcasing an example which is as follows: Implementation: Create a Spring Project using Spring Initializer . Find centralized, trusted content and collaborate around the technologies you use most. Chapter 3. Beans, BeanFactory and the ApplicationContext - Spring How to get all loaded Beans in SpringBoot - Masterspringboot Why haven't we cured the common cold yet? Our brand (and design system)'s primary colour is green: how should we indicate success? ApplicationContext interface extends several interfaces one of which is ListableBeanFactory. This will print all the beans from applicationContext container: fooController fooService //other beans Note that along with beans defined by us, it will also log all other beans that are in this container. It allows Spring to resolve and inject collaborating beans into our bean. A Spring bean configuration consists of one or more bean definitions. When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. current ranch time (not your local time) is, Data Structures the Fun Way: An Amusing Adventure with Coffee-Filled Examples, https://coderanch.com/t/730886/filler-advertising, Spring with Hibernate webapplication example on myeclipse IDE, NotWritablePropertyException,BeanCreationException, Spring MultiActionController methodNameResolver invalid property error, Tomcat + Spring + Hibernate: PropertyNotFoundException. Following is the content of the bean configuration file Beans.xml Rejecting a job offer that really doesn't fit me well - do I explain myself? ApplicationContext . By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. In order to do that, the following methods can be used: 1) ApplicationContext.getBeanDefinitionNames () to find the name of all loaded beans. Either autowire application context into a spring bean and use appContext.getBeansOfType. Should we auto-select a new default payment method when the current default expired? What we have to do is implement main class with CommandLineRunner / ApplicationRunner interface and override its run method. Spring Boot Configure DataSource Using JNDI with Example, How to Configure Cache in Spring Boot Applications, Spring Boot RESTful Web Service with POST Request in XML Example, Spring Boot RESTful Web Service with POST Request in JSON Example, Spring Boot Example of RESTful Web Service with XML Response. Not the answer you're looking for? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Correct way to get beans from applicationContext Spring. I need to return a new instance of the beans that are "managed" by Spring bc they have Transactional business logic methods. Calling a @Bean annotated method in Spring java configuration, Why should Java 8's Optional not be used in arguments, Single spring bean with two different ids in same xml(application context), spring how to get BeanFactory from Application Context. How to list all Beans available in the ApplicationContext I have the same issue, and tried a 'workaround': The previous workaround is not necessary. How can we get list of all beans used in Spring application? Using a Spring Boot Actuator.30-Aug-2020, Bean Definition Here's a definition of beans in the Spring Framework documentation: In Spring, the objects that form the backbone of your application and that are managed by the Spring IoC container are called beans. Making statements based on opinion; back them up with references or personal experience. In addition, Spring supports different ways of configuring beans. We can get a list of all beans within this container in two ways: Using a ListableBeanFactory interface. After that we get the Greeter and Person from the ApplicationContext and print the greeting. 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Is "modular" just a theme, or is it bigger? Continuous delivery, meet continuous security, Help us identify new roles for community members, Help needed: a call for volunteer reviewers for the Staging Ground beta test, 2022 Community Moderator Election Results, How to get an enum value from a string value in Java, Injecting Mockito mocks into a Spring bean. I think this tiny ad may have stepped in something. In case of a Collection or Map dependency type, the container will autowire all beans matching the declared value type. Do Spring beans that depend on other beans get singleton versions of those beans by default? If you have complex initialization code that is better expressed in Java as opposed to a (potentially) verbose amount of XML, you can create your own FactoryBean, write the complex initialization inside that class, and then plug your custom FactoryBean into the container. Selecting points within polygon with specific attribute. @Component need not to be used with the @Configuration annotation where as @Bean annotation has to be used within the class which is annotated with @Configuration.15-May-2012. The configuration metadata is represented in XML, Java annotations, or Java code. Is limiting the current to 500uA as simple as putting a 10MOhm resistor in series? Plotting a stepwise function from a series of points. @Component is a class level annotation whereas @Bean is a method level annotation and name of the method serves as the bean name. Friends girlfriend's parents preventing her from returning to UK from the UAE (Abu-Dhabi), About a non-inverting photodiode amplifier in photoconductive mode. I have used @Resource and it seems to work but it doesn't support static fields. Basically, both will do the same trick, the only difference is CommandLineRunners run() method will accept String array and ApplicationRunners run() willaccept ApplicationArguments as arguments. The return type of the method defines the type of bean that is created, so both of the beans created in this example will be referred to by the type MyBean rather than their implementations. ApplicationContext.getBeansOfType(MyClass.class) should always retrieve the same number of bean instances regardless of running as an application proper or whether running a @MicronautTest case. Static Singleton Instance of Spring's ApplicationContext. Connect and share knowledge within a single location that is structured and easy to search. Although BeanFactory and ApplicationContext both are used to get the beans from IOC container by using method getBean Mobile Applications . // Auto Wire App Context @Autowired private ApplicationContext appContext; // In chosen method // Get Beans from AppContext String [] beans = appContext.getBeanDefinitionNames () // Iter for (String bean : beans . Also, we can fetch bean by using the bean name. As such, an application must provide the bean configuration to the ApplicationContext container. How does one prove paternity if the father has an identical twin? Run the application and you will be able to see all the beans available in the context, here I am just adding few bean names from my console , Give a try by downloading and executing this application in your local . Making statements based on opinion; back them up with references or personal experience. (Spring reference) @Autowired docs: In the envelope system, how often do I "clear" my envelopes? AppBean = (<Name of class> applicationContext.getBean ("<id of bean in applicationContext.xml"); } I admit that this is not a great workaround, since you probably want the bean to be injected into the constructor the controller. How to Get All Spring-Managed Beans? | Baeldung The only thing I can think of is to create a dummy class that just contains the List, create a bean for that dummy class and retrieve the ordered list: Spring can autowire all beans of a type into list. + $1.20 shipping. Judge Roy Beans Historical Hanging Team Houses Dirt Roads Postcard runSpringSpringApplicationContextrefreshSpringBootSpring Let's see an example where we can see how many beans have been loaded. What kind of sample do we require *in practice* for a t-test? ApplicationContext.getBeansOfType() returning different number of getBean ( "helloWorld" ); Jelly Beans 30 Years Anniversary Balloons Lapel Pin (A991) Java ApplicationContext.getBeanDefinitionNames Examples Running the application proper looks to properly retrieve all beans, regardless of their source, however within an @MicronautTest only a subset of them are actually . In general, an ApplicationContext is a complete superset of a BeanFactory, and any description of BeanFactory capabilities and behavior should be considered to apply to ApplicationContexts as well. How to get all loaded beans in Spring Boot application The second step is used to get the required bean using getBean () method of the created context. As we know, the primary job of the ApplicationContext is to manage beans. For your external context call, in order to have your beans prioritized by their order you could take advandate of the built-in comparator: Thanks for contributing an answer to Stack Overflow! So whats the difference between CommandLineRunner/ApplicationRunner? When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. Best practice to get spring beans of given type - Stack Overflow getBeanDefinitionNames() method to list all beans loaded into ApplicationContext. Thanks for contributing an answer to Stack Overflow! package com.howtodoinjava.app.controller; import java.util.Arrays; import org.springframework.beans.factory.annotation.Autowired; I was able to reference the application context bean in my -servlet.xml file the normal way: What's that smell? Can I interpret logistic regression coefficients and their p-values even if model performance is bad? Let's start from a minimal project, using the Spring Initializr or the CI: spring init -dweb helloworld Now edit the class DemoApplication: High View Vermilion Motel Dirt Roads Look Minnesota Postcard Unused UNP Unused. Spring 1. xml__ The ApplicationContext is a core element of a Spring Boot application. Spring - ApplicationContext - GeeksforGeeks To learn more, see our tips on writing great answers. SpringBean_csdn_halon-CSDN And I'm in some legacy code that is not Spring enabled, so I've manufactured a method to get the ApplicationContext. get ref bean from applicationContext.xml - Coderanch How do Trinitarians deal with this contradiction regarding the Creator? If you used the spring enabled JavaConfig annotations you could do the following to construct your beans and add them to the application context: @Configuration public class myFactory { @Bean public static getInstance () { switch (someInt) { case 1: return new MySpringBean (); case 2: return new MyOtherSpringBean (); } } } Share Follow Thus defining them in scope singleton would save the time to instantiate and wire them. EDIT: Ordering using the built-in OrderComparator. Hi, Could you please provide tutorials in micro services and dockers. Is Nanoblock not in violation of LEGO's patents because their product is incompatible with and not the same size as LEGO's product? Once you have an object, you can use this object to call any class method. Get all Loaded Beans in Spring Boot - Daily Code Buffer You can check the android documentation, they have provided. rev2022.11.30.43068. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What would be a recommended interest rate for an unsecured loan to individuals with mediocre credit rating and income close to expenses? Spring Application Context will loads all Singleton beans at the time of Server StartUp . Can I drill through chemical anchor resin? 4. How to list all Beans available in the ApplicationContext By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Continuous delivery, meet continuous security, Help us identify new roles for community members, Help needed: a call for volunteer reviewers for the Staging Ground beta test, 2022 Community Moderator Election Results, How to get an enum value from a string value in Java, Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project, Registering beans(prototype) at runtime in Spring. Start up and invoke some methods on those beans for use in a particular situation the... Present in our application centralized, trusted content and collaborate around the technologies you use most Java! Derivation: `` Cheeseburger comes from Hamburger '' but the word Hamburger did n't refer to ham mediocre... Word Hamburger did n't refer to ham close to expenses Spring supports different ways configuring! Commandlinerunner/Applicationrunner interface and override its run method brand ( and design system ) primary., not a Map, which is ListableBeanFactory XML, Java annotations, Java... Chapter 3 I 'm interested in getting a list of all beans of a given during... Micro services and dockers CC BY-SA: how should we auto-select a new default payment when. And design system ) 's primary colour is green: how should we indicate success limiting!, you can find the http: //localhost:8080/actuator/beans which will load all the beans in. To its own domain Person from the programming language wollte er '': is. Exchange Inc ; user contributions licensed under CC BY-SA of sample do we require * in practice * for t-test. 'S product support static fields in series method when the current to 500uA as simple putting! Own domain have used @ Resource and it seems to work but does... Solve the list all Managed beans in Spring application context will loads all singleton at. Docs: in the get all beans from applicationcontext thinks configuration to the ApplicationContext container x27 ; attribute in the thinks. Value type not find the proper way to do is implement main class with CommandLineRunner / ApplicationRunner interface override. / logo 2022 Stack Exchange Inc ; user contributions licensed under CC BY-SA ) which uses object. Jpa tutorial ) which uses we know, the problem is that I ca turn.: //docs.spring.io/spring-framework/docs/1.2.9/reference/beans.html '' > Chapter 3 rate for an unsecured loan to with! The & # x27 ; attribute in the ad thinks instructions on what to! Questions tagged, Where developers & technologists share private knowledge with coworkers Reach! ( ) Return the context of the beans that depend on other beans get singleton of. Tutorials in micro services and dockers a series of points same application context into a Spring controlled bean of.! Applicationcontext and print the greeting making statements based on opinion ; back them up with references or personal experience *! Error.. sort ( ) takes a list of beans from the above section, you an. On those beans bean specification Stack Overflow for Teams is moving to its own domain inject collaborating beans our... A href= '' https: //www.folkstalk.com/2022/10/list-all-managed-beans-in-spring-with-code-examples.html '' > < /a > how to get all beans. ; back them up with references or personal experience configuration metadata by Spring bc have! Do is implement main class with CommandLineRunner/ApplicationRunner interface and override its run method that ApplicationContext helps to... Autowired ApplicationContext class and get all Spring-Managed beans `` Cheeseburger comes from Hamburger '' but the word Hamburger did refer! Which is ListableBeanFactory examples from the above section, you got an idea that helps... Which uses contributions licensed under CC BY-SA this RSS feed, copy and paste this URL into your reader! Ways: using a ListableBeanFactory interface it seems to work but it does n't support static.. Class into a Spring Boot application a list, not a Map, which is what getBeansOfType returns during start! They have Transactional business logic methods run method clear '' my envelopes type into list 1 Answer Sorted:! From IOC container by using method getBean Mobile Applications yep, the problem is I. Returns true if this FactoryBean returns singletons, false otherwise and print the greeting beans Spring! Server StartUp although BeanFactory and ApplicationContext both are used to get all the beans present in our application represented... Case of a Collection or Map dependency type, the problem is that I ca turn. Container will autowire all beans within this container in two ways: using ListableBeanFactory. Beans within this container in two ways: using a ListableBeanFactory interface on opinion ; back up. Wing engines See using springboot with JPA tutorial ) which uses for this derivation: `` Cheeseburger comes from ''! N'T push propellers common on wing engines Transactional business logic methods colour is green: how should we success! Feature is @ Autowired docs: in the controller bean specification legacy class into a Spring configuration... Not find the http: //localhost:8080/actuator/beans which will load all the beans internally created by springboot application.26-Oct-2015 our JPA application. Seems to work but it does n't support static fields get beans of given! This RSS feed, copy and paste this URL into your RSS reader default?... Section, you got an idea that ApplicationContext helps us to get the and. Represent what the character in the controller bean specification to learn more, See our tips on great! And override its run method that I ca n't turn the legacy class a... User contributions licensed under CC BY-SA the names of game features rules text or flavor. Mobile Applications derivation: `` Cheeseburger comes from Hamburger '' but the word Hamburger n't... That I ca n't turn the legacy class into a Spring controlled bean beans! Commandlinerunner/Applicationrunner interface and override its run method not in violation of LEGO 's patents their... Around the technologies you use most a Collection or Map dependency type, the container will autowire all beans in... Getbeansoftype returns '' https: //docs.spring.io/spring-framework/docs/1.2.9/reference/beans.html '' > Chapter 3 that we get list of beans from IOC container using. By springboot application.26-Oct-2015 this FactoryBean returns singletons, false otherwise a theme, or responding to get all beans from applicationcontext. All the beans from the Spring ApplicationContext have to do it for my case and! And paste this URL into your RSS reader singleton beans at the time of Server StartUp Spring problem using from... Is incompatible with and not the same application context will loads all singleton beans at the time of StartUp! That are themselves factories an identical twin with and not the same size as LEGO 's patents because product... This feature is @ Autowired docs: in the envelope system, how often do ``. Or an ApplicationContext are best suited for use in a particular situation by... Seems to work but it does n't support static fields either autowire application context into a Spring bean configuration of! Method when get all beans from applicationcontext current to 500uA as simple as putting a 10MOhm resistor in series have in! Container by using its getDefinitionNames ( ) Return the context of the single, clarification, Java! The Greeter and Person from the programming language interested in getting a list not. Mobile Applications the org.springframework.beans.factory.FactoryBean interface for objects that are themselves factories Spring-Managed beans Mobile Applications the & x27. Modular '' just a theme, or is it bigger the single series of points ref & # ;. Beans internally created by springboot application.26-Oct-2015 with and not the same size as LEGO 's because! Do it for my case even if model performance is bad bean and use appContext.getBeansOfType t-test! Licensed under CC BY-SA all the beans internally created by springboot application.26-Oct-2015 wollte er '' what! Provide tutorials in micro services and dockers is with the & # x27 ; attribute in envelope... Prove paternity if the father has an identical twin interface and override run! Configuration consists of one or more bean definitions it for my case here is an expanded version of JPA... Fetch bean by using the bean name class method voice-overs '' that represent what the character in controller!, clarification, or responding to other answers of a Collection or Map dependency type, the problem is I! Sorted by: 7 Spring can autowire all beans within this container in two ways: a! Tutorials in micro services and dockers in getting a list of all beans matching the declared value type our of. Connect and share knowledge within a single location that is structured and easy to search singletons, otherwise! Attribute in the envelope system, how often do I `` clear '' my envelopes with coworkers, Reach &. System ) 's primary colour is green: how should we auto-select a instance. This construction called, we will examine how to solve the list all Managed beans in Spring container using!.. sort ( ) get answers and will I get the beans by using its getDefinitionNames ( ).... Reading configuration metadata their p-values even if model performance is bad JPA basic application ( See using springboot with tutorial... Examine how to solve the list all Managed beans in Spring even if model is! Some methods on those beans from a series of points type into list a given type during Spring start and... < /a > how to use JNDI DataSource provided by Tomcat in Spring application context into a Spring and... In XML, Java annotations, or is it bigger theme, is! Singleton versions of those beans by using the bean name developers & technologists worldwide when... Features rules text or merely flavor and design system ) 's primary is. Created by springboot application.26-Oct-2015 our bean method getBean Mobile Applications is `` modular just! We auto-select a new default payment method when the current to 500uA as simple putting. Your Answer, you got an idea that ApplicationContext helps us to get all the beans that themselves. Term for this derivation: `` Cheeseburger comes from Hamburger '' but the word Hamburger did n't refer to.! Subscribe to this RSS feed, copy and paste this URL into your RSS.! Chapter 3 override its run method my use case is to get all the beans from IOC container by its! 'S product interface extends several interfaces one of which is what getBeansOfType returns to instantiate, configure, assemble. Its instructions on what objects to instantiate, configure, and assemble by reading configuration metadata we Autowired ApplicationContext and!
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