Package org.springframework.context.annotation

Class AnnotationConfigApplicationContext

java.lang.Object

org.springframework.core.io.DefaultResourceLoader

org.springframework.context.support.AbstractApplicationContext

org.springframework.context.support.GenericApplicationContext

org.springframework.context.annotation.AnnotationConfigApplicationContext

All Implemented Interfaces:

Closeable, AutoCloseable, BeanFactory, HierarchicalBeanFactory, ListableBeanFactory, BeanDefinitionRegistry, AnnotationConfigRegistry, ApplicationContext, ApplicationEventPublisher, ConfigurableApplicationContext, Lifecycle, MessageSource, AliasRegistry, EnvironmentCapable, ResourceLoader, ResourcePatternResolver

public class AnnotationConfigApplicationContext
extends GenericApplicationContext
implements AnnotationConfigRegistry

Standalone application context, accepting component classes as input — in particular @Configuration-annotated classes, but also plain @Component types and JSR-330 compliant classes using jakarta.inject annotations.

Allows for registering classes one by one using register(Class...) as well as for classpath scanning using scan(String...).

In case of multiple @Configuration classes, @Bean methods defined in later classes will override those defined in earlier classes. This can be leveraged to deliberately override certain bean definitions via an extra @Configuration class.

See @Configuration's javadoc for usage examples.

Since:

3.0

Author:

Juergen Hoeller, Chris Beams

See Also:

• register(java.lang.Class<?>...)
• scan(java.lang.String...)
• AnnotatedBeanDefinitionReader
• ClassPathBeanDefinitionScanner
• GenericXmlApplicationContext

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.core.io.DefaultResourceLoader

DefaultResourceLoader.ClassPathContextResource

Field Summary

Fields inherited from class org.springframework.context.support.AbstractApplicationContext

APPLICATION_EVENT_MULTICASTER_BEAN_NAME, LIFECYCLE_PROCESSOR_BEAN_NAME, logger, MESSAGE_SOURCE_BEAN_NAME

Fields inherited from interface org.springframework.beans.factory.BeanFactory

FACTORY_BEAN_PREFIX

Fields inherited from interface org.springframework.context.ConfigurableApplicationContext

APPLICATION_STARTUP_BEAN_NAME, CONFIG_LOCATION_DELIMITERS, CONVERSION_SERVICE_BEAN_NAME, ENVIRONMENT_BEAN_NAME, LOAD_TIME_WEAVER_BEAN_NAME, SHUTDOWN_HOOK_THREAD_NAME, SYSTEM_ENVIRONMENT_BEAN_NAME, SYSTEM_PROPERTIES_BEAN_NAME

Fields inherited from interface org.springframework.core.io.ResourceLoader

CLASSPATH_URL_PREFIX

Fields inherited from interface org.springframework.core.io.support.ResourcePatternResolver

CLASSPATH_ALL_URL_PREFIX

Constructor Summary

Constructors

Constructor	Description
AnnotationConfigApplicationContext()	Create a new AnnotationConfigApplicationContext that needs to be populated through register(java.lang.Class<?>...) calls and then manually refreshed.
AnnotationConfigApplicationContext(Class<?>... componentClasses)	Create a new AnnotationConfigApplicationContext, deriving bean definitions from the given component classes and automatically refreshing the context.
AnnotationConfigApplicationContext(String... basePackages)	Create a new AnnotationConfigApplicationContext, scanning for components in the given packages, registering bean definitions for those components, and automatically refreshing the context.
AnnotationConfigApplicationContext(DefaultListableBeanFactory beanFactory)	Create a new AnnotationConfigApplicationContext with the given DefaultListableBeanFactory.

Method Summary

Modifier and Type	Method	Description
void	register(Class<?>... componentClasses)	Register one or more component classes to be processed.
<T> void	registerBean(String beanName, Class<T> beanClass, Supplier<T> supplier, BeanDefinitionCustomizer... customizers)	Register a bean from the given bean class, using the given supplier for obtaining a new instance (typically declared as a lambda expression or method reference), optionally customizing its bean definition metadata (again typically declared as a lambda expression).
void	scan(String... basePackages)	Perform a scan within the specified base packages.
void	setBeanNameGenerator(BeanNameGenerator beanNameGenerator)	Provide a custom BeanNameGenerator for use with AnnotatedBeanDefinitionReader and/or ClassPathBeanDefinitionScanner, if any.
void	setEnvironment(ConfigurableEnvironment environment)	Propagate the given custom Environment to the underlying AnnotatedBeanDefinitionReader and