Class AnnotationConfigServletWebApplicationContext

java.lang.Object

org.springframework.core.io.DefaultResourceLoader

org.springframework.context.support.AbstractApplicationContext

org.springframework.context.support.GenericApplicationContext

org.springframework.web.context.support.GenericWebApplicationContext

org.springframework.boot.web.context.servlet.AnnotationConfigServletWebApplicationContext

All Implemented Interfaces:

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

public class AnnotationConfigServletWebApplicationContext
extends GenericWebApplicationContext
implements AnnotationConfigRegistry

GenericWebApplicationContext that accepts annotated classes as input - in particular @Configuration-annotated classes, but also plain @Component classes and JSR-330 compliant classes using javax.inject annotations. Allows for registering classes one by one (specifying class names as config location) as well as for classpath scanning (specifying base packages as config location).

Note: In case of multiple @Configuration classes, later @Bean definitions will override ones defined in earlier loaded files. This can be leveraged to deliberately override certain bean definitions through an extra Configuration class.

Since:

2.2.0

Author:

Stephane Nicoll

See Also:

• register(Class...)
• scan(String...)

Nested Class Summary

Nested classes/interfaces inherited from class DefaultResourceLoader

DefaultResourceLoader.ClassPathContextResource

Field Summary

Fields inherited from class AbstractApplicationContext

APPLICATION_EVENT_MULTICASTER_BEAN_NAME, LIFECYCLE_PROCESSOR_BEAN_NAME, logger, MESSAGE_SOURCE_BEAN_NAME

Fields inherited from interface BeanFactory

FACTORY_BEAN_PREFIX, FACTORY_BEAN_PREFIX_CHAR

Fields inherited from interface ConfigurableApplicationContext

APPLICATION_STARTUP_BEAN_NAME, BOOTSTRAP_EXECUTOR_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 ConfigurableWebApplicationContext

APPLICATION_CONTEXT_ID_PREFIX, SERVLET_CONFIG_BEAN_NAME

Fields inherited from interface ResourceLoader

CLASSPATH_URL_PREFIX

Fields inherited from interface ResourcePatternResolver

CLASSPATH_ALL_URL_PREFIX

Fields inherited from interface WebApplicationContext

CONTEXT_ATTRIBUTES_BEAN_NAME, CONTEXT_PARAMETERS_BEAN_NAME, ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, SCOPE_APPLICATION, SCOPE_REQUEST, SCOPE_SESSION, SERVLET_CONTEXT_BEAN_NAME

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
protected void	postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
protected void	prepareRefresh()
final void	register(Class<?>... annotatedClasses)	Register one or more annotated classes to be processed.
<T> void	registerBean(@Nullable String beanName, Class<T> beanClass, @Nullable Supplier<T> supplier, BeanDefinitionCustomizer... customizers)
final 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)
void	setScopeMetadataResolver(ScopeMetadataResolver scopeMetadataResolver)	Set the ScopeMetadataResolver to use for detected bean classes.

Methods inherited from class GenericWebApplicationContext

createEnvironment, getApplicationName, getConfigLocations, getNamespace, getResourceByPath, getResourcePatternResolver, getServletConfig, getServletContext, initPropertySources, setConfigLocation, setConfigLocations, setNamespace, setServletConfig, setServletContext

Methods inherited from class GenericApplicationContext

cancelRefresh, closeBeanFactory, getAutowireCapableBeanFactory, getBeanDefinition, getBeanFactory, getClassLoader, getDefaultListableBeanFactory, getResource, getResources, isAlias, isBeanDefinitionOverridable, isBeanNameInUse, refreshBeanFactory, refreshForAotProcessing, register, registerAlias, registerBean, registerBean, registerBean, registerBean, registerBean, registerBeanDefinition, removeAlias, removeBeanDefinition, setAllowBeanDefinitionOverriding, setAllowCircularReferences, setApplicationStartup, setClassLoader, setParent, setResourceLoader

Methods inherited from class AbstractApplicationContext

addApplicationListener, addBeanFactoryPostProcessor, assertBeanFactoryActive, clearResourceCaches, close, containsBean, containsBeanDefinition, containsLocalBean, destroyBeans, doClose, findAllAnnotationsOnBean, findAnnotationOnBean, findAnnotationOnBean, finishBeanFactoryInitialization, finishRefresh, getAliases, getApplicationListeners, getApplicationStartup, getBean, getBean, getBean, getBean, getBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanFactoryPostProcessors, getBeanNamesForAnnotation, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanProvider, getBeanProvider, getBeanProvider, getBeanProvider, getBeanProvider, getBeansOfType, getBeansOfType, getBeansWithAnnotation, getDisplayName, getEnvironment, getId, getInternalParentBeanFactory, getInternalParentMessageSource, getMessage, getMessage, getMessage, getParent, getParentBeanFactory, getStartupDate, getType, getType, initApplicationEventMulticaster, initLifecycleProcessor, initMessageSource, invokeBeanFactoryPostProcessors, isActive, isClosed, isPrototype, isRunning, isSingleton, isTypeMatch, isTypeMatch, obtainFreshBeanFactory, onClose, onRefresh, pause, prepareBeanFactory, publishEvent, publishEvent, publishEvent, refresh, registerBeanPostProcessors, registerListeners, registerShutdownHook, removeApplicationListener, resetCommonCaches, restart, setDisplayName, setId, start, stop, toString

Methods inherited from class DefaultResourceLoader

addProtocolResolver, getProtocolResolvers, getResourceCache

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface AliasRegistry

getAliases

Methods inherited from interface AnnotationConfigRegistry

register

Methods inherited from interface ApplicationContext

getAutowireCapableBeanFactory, getDisplayName, getId, getParent, getStartupDate

Methods inherited from interface ApplicationEventPublisher

publishEvent, publishEvent

Methods inherited from interface BeanDefinitionRegistry

containsBeanDefinition, getBeanDefinitionCount, getBeanDefinitionNames

Methods inherited from interface BeanFactory

containsBean, getAliases, getBean, getBean, getBean, getBean, getBean, getBeanProvider, getBeanProvider, getBeanProvider, getType, getType, isPrototype, isSingleton, isTypeMatch, isTypeMatch

Methods inherited from interface ConfigurableApplicationContext

addApplicationListener, addBeanFactoryPostProcessor, addProtocolResolver, close, getApplicationStartup, getBeanFactory, getEnvironment, isActive, isClosed, pause, refresh, registerShutdownHook, removeApplicationListener, restart, setApplicationStartup, setClassLoader, setId, setParent

Methods inherited from interface HierarchicalBeanFactory

containsLocalBean, getParentBeanFactory

Methods inherited from interface Lifecycle

isRunning, start, stop

Methods inherited from interface ListableBeanFactory

containsBeanDefinition, findAllAnnotationsOnBean, findAnnotationOnBean, findAnnotationOnBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanNamesForAnnotation, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanProvider, getBeanProvider, getBeansOfType, getBeansOfType, getBeansWithAnnotation

Methods inherited from interface MessageSource

getMessage, getMessage, getMessage

Methods inherited from interface ResourceLoader

getClassLoader, getResource

Methods inherited from interface ResourcePatternResolver

getResources

Constructor Details

AnnotationConfigServletWebApplicationContext

public AnnotationConfigServletWebApplicationContext()

Create a new AnnotationConfigServletWebApplicationContext that needs to be populated through register(Class...) calls and then manually refreshed.

AnnotationConfigServletWebApplicationContext

public AnnotationConfigServletWebApplicationContext(DefaultListableBeanFactory beanFactory)

Create a new AnnotationConfigServletWebApplicationContext with the given DefaultListableBeanFactory. The context needs to be populated through register(Class...) calls and then manually refreshed.

Parameters:

beanFactory - the DefaultListableBeanFactory instance to use for this context

AnnotationConfigServletWebApplicationContext

public AnnotationConfigServletWebApplicationContext(Class<?>... annotatedClasses)

Create a new AnnotationConfigServletWebApplicationContext, deriving bean definitions from the given annotated classes and automatically refreshing the context.

Parameters:

annotatedClasses - one or more annotated classes, e.g. @Configuration classes

AnnotationConfigServletWebApplicationContext

public AnnotationConfigServletWebApplicationContext(String... basePackages)

Create a new AnnotationConfigServletWebApplicationContext, scanning for bean definitions in the given packages and automatically refreshing the context.

Parameters:

basePackages - the packages to check for annotated classes

Method Details

setEnvironment

public void setEnvironment(ConfigurableEnvironment environment)

Delegates given environment to underlying AnnotatedBeanDefinitionReader and ClassPathBeanDefinitionScanner members.

Specified by:

setEnvironment in interface ConfigurableApplicationContext

Overrides:

setEnvironment in class AbstractApplicationContext

setBeanNameGenerator

public void setBeanNameGenerator(BeanNameGenerator beanNameGenerator)

Provide a custom BeanNameGenerator for use with AnnotatedBeanDefinitionReader and/or ClassPathBeanDefinitionScanner, if any.

Default is AnnotationBeanNameGenerator.

Any call to this method must occur prior to calls to register(Class...) and/or scan(String...).

Parameters:

beanNameGenerator - the bean name generator

See Also:

• AnnotatedBeanDefinitionReader.setBeanNameGenerator(BeanNameGenerator)
• ClassPathBeanDefinitionScanner.setBeanNameGenerator(BeanNameGenerator)

setScopeMetadataResolver

public void setScopeMetadataResolver(ScopeMetadataResolver scopeMetadataResolver)

Set the ScopeMetadataResolver to use for detected bean classes.

The default is an AnnotationScopeMetadataResolver.

Any call to this method must occur prior to calls to register(Class...) and/or scan(String...).

Parameters:

scopeMetadataResolver - the scope metadata resolver

register

public final void register(Class<?>... annotatedClasses)

Register one or more annotated classes to be processed. Note that AbstractApplicationContext.refresh() must be called in order for the context to fully process the new class.

Calls to #register are idempotent; adding the same annotated class more than once has no additional effect.

Specified by:

register in interface AnnotationConfigRegistry

Parameters:

annotatedClasses - one or more annotated classes, e.g. @Configuration classes

See Also:

• scan(String...)
• AbstractApplicationContext.refresh()

scan

public final void scan(String... basePackages)

Perform a scan within the specified base packages. Note that AbstractApplicationContext.refresh() must be called in order for the context to fully process the new class.

Specified by:

scan in interface AnnotationConfigRegistry

Parameters:

basePackages - the packages to check for annotated classes

See Also:

• register(Class...)
• AbstractApplicationContext.refresh()

prepareRefresh

protected void prepareRefresh()

Overrides:

prepareRefresh in class AbstractApplicationContext

postProcessBeanFactory

protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)

Overrides:

postProcessBeanFactory in class GenericWebApplicationContext

registerBean

public <T> void registerBean(@Nullable String beanName,
 Class<T> beanClass,
 @Nullable Supplier<T> supplier,
 BeanDefinitionCustomizer... customizers)

Overrides:

registerBean in class GenericApplicationContext