java.lang.Object
- org.springframework.core.io.DefaultResourceLoader
- - org.springframework.context.support.AbstractApplicationContext

All Implemented Interfaces:
Closeable, AutoCloseable, BeanFactory, DisposableBean, HierarchicalBeanFactory, ListableBeanFactory, ApplicationContext, ApplicationEventPublisher, ConfigurableApplicationContext, Lifecycle, MessageSource, EnvironmentCapable, ResourceLoader, ResourcePatternResolver
Direct Known Subclasses:
AbstractRefreshableApplicationContext, GenericApplicationContext
```
public abstract class AbstractApplicationContext
extends DefaultResourceLoader
implements ConfigurableApplicationContext, DisposableBean
```
Abstract implementation of the ApplicationContext interface. Doesn't mandate the type of storage used for configuration; simply implements common context functionality. Uses the Template Method design pattern, requiring concrete subclasses to implement abstract methods.
In contrast to a plain BeanFactory, an ApplicationContext is supposed to detect special beans defined in its internal bean factory: Therefore, this class automatically registers BeanFactoryPostProcessors, BeanPostProcessors, and ApplicationListeners which are defined as beans in the context.
A MessageSource may also be supplied as a bean in the context, with the name "messageSource"; otherwise, message resolution is delegated to the parent context. Furthermore, a multicaster for application events can be supplied as an "applicationEventMulticaster" bean of type ApplicationEventMulticaster in the context; otherwise, a default multicaster of type SimpleApplicationEventMulticaster will be used.
Implements resource loading by extending DefaultResourceLoader. Consequently treats non-URL resource paths as class path resources (supporting full class path resource names that include the package path, e.g. "mypackage/myresource.dat"), unless the DefaultResourceLoader.getResourceByPath(java.lang.String) method is overridden in a subclass.
Since:
January 21, 2001
Author:
Rod Johnson, Juergen Hoeller, Mark Fisher, Stephane Nicoll
See Also:
refreshBeanFactory(), getBeanFactory(), BeanFactoryPostProcessor, BeanPostProcessor, ApplicationEventMulticaster, ApplicationListener, MessageSource

Nested Class Summary
- Nested classes/interfaces inherited from class org.springframework.core.io.DefaultResourceLoader
  DefaultResourceLoader.ClassPathContextResource

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`APPLICATION_EVENT_MULTICASTER_BEAN_NAME`	Name of the ApplicationEventMulticaster bean in the factory.
`static String`	`LIFECYCLE_PROCESSOR_BEAN_NAME`	Name of the LifecycleProcessor bean in the factory.
`protected Log`	`logger`	Logger used by this class.
`static String`	`MESSAGE_SOURCE_BEAN_NAME`	Name of the MessageSource bean in the factory.

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

Fields inherited from interface org.springframework.context.ConfigurableApplicationContext
CONFIG_LOCATION_DELIMITERS, CONVERSION_SERVICE_BEAN_NAME, ENVIRONMENT_BEAN_NAME, LOAD_TIME_WEAVER_BEAN_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
`AbstractApplicationContext()`	Create a new AbstractApplicationContext with no parent.
`AbstractApplicationContext(ApplicationContext parent)`	Create a new AbstractApplicationContext with the given parent context.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addApplicationListener(ApplicationListener<?> listener)`	Add a new ApplicationListener that will be notified on context events such as context refresh and context shutdown.
`void`	`addBeanFactoryPostProcessor(BeanFactoryPostProcessor postProcessor)`	Add a new BeanFactoryPostProcessor that will get applied to the internal bean factory of this application context on refresh, before any of the bean definitions get evaluated.
`protected void`	`assertBeanFactoryActive()`	Assert that this context's BeanFactory is currently active, throwing an `IllegalStateException` if it isn't.
`protected void`	`cancelRefresh(BeansException ex)`	Cancel this context's refresh attempt, resetting the `active` flag after an exception got thrown.
`void`	`close()`	Close this application context, destroying all beans in its bean factory.
`protected abstract void`	`closeBeanFactory()`	Subclasses must implement this method to release their internal bean factory.
`boolean`	`containsBean(String name)`	Does this bean factory contain a bean definition or externally registered singleton instance with the given name?
`boolean`	`containsBeanDefinition(String beanName)`	Check if this bean factory contains a bean definition with the given name.
`boolean`	`containsLocalBean(String name)`	Return whether the local bean factory contains a bean of the given name, ignoring beans defined in ancestor contexts.
`protected ConfigurableEnvironment`	`createEnvironment()`	Create and return a new `StandardEnvironment`.
`void`	`destroy()`	DisposableBean callback for destruction of this instance.
`protected void`	`destroyBeans()`	Template method for destroying all beans that this context manages.
`protected void`	`doClose()`	Actually performs context closing: publishes a ContextClosedEvent and destroys the singletons in the bean factory of this application context.
`<A extends Annotation> A`	`findAnnotationOnBean(String beanName, Class<A> annotationType)`	Find an `Annotation` of `annotationType` on the specified bean, traversing its interfaces and super classes if no annotation can be found on the given class itself.
`protected void`	`finishBeanFactoryInitialization(ConfigurableListableBeanFactory beanFactory)`	Finish the initialization of this context's bean factory, initializing all remaining singleton beans.
`protected void`	`finishRefresh()`	Finish the refresh of this context, invoking the LifecycleProcessor's onRefresh() method and publishing the `ContextRefreshedEvent`.
`String[]`	`getAliases(String name)`	Return the aliases for the given bean name, if any.
`Collection<ApplicationListener<?>>`	`getApplicationListeners()`	Return the list of statically specified ApplicationListeners.
`String`	`getApplicationName()`	Return a name for the deployed application that this context belongs to.
`AutowireCapableBeanFactory`	`getAutowireCapableBeanFactory()`	Return this context's internal bean factory as AutowireCapableBeanFactory, if already available.
`<T> T`	`getBean(Class<T> requiredType)`	Return the bean instance that uniquely matches the given object type, if any.
`<T> T`	`getBean(Class<T> requiredType, Object... args)`	Return an instance, which may be shared or independent, of the specified bean.
`Object`	`getBean(String name)`	Return an instance, which may be shared or independent, of the specified bean.
`<T> T`	`getBean(String name, Class<T> requiredType)`	Return an instance, which may be shared or independent, of the specified bean.
`Object`	`getBean(String name, Object... args)`	Return an instance, which may be shared or independent, of the specified bean.
`int`	`getBeanDefinitionCount()`	Return the number of beans defined in the factory.
`String[]`	`getBeanDefinitionNames()`	Return the names of all beans defined in this factory.
`abstract ConfigurableListableBeanFactory`	`getBeanFactory()`	Subclasses must return their internal bean factory here.
`List<BeanFactoryPostProcessor>`	`getBeanFactoryPostProcessors()`	Return the list of BeanFactoryPostProcessors that will get applied to the internal BeanFactory.
`String[]`	`getBeanNamesForAnnotation(Class<? extends Annotation> annotationType)`	Find all names of beans which are annotated with the supplied `Annotation` type, without creating corresponding bean instances yet.
`String[]`	`getBeanNamesForType(Class<?> type)`	Return the names of beans matching the given type (including subclasses), judging from either bean definitions or the value of `getObjectType` in the case of FactoryBeans.
`String[]`	`getBeanNamesForType(Class<?> type, boolean includeNonSingletons, boolean allowEagerInit)`	Return the names of beans matching the given type (including subclasses), judging from either bean definitions or the value of `getObjectType` in the case of FactoryBeans.
`String[]`	`getBeanNamesForType(ResolvableType type)`	Return the names of beans matching the given type (including subclasses), judging from either bean definitions or the value of `getObjectType` in the case of FactoryBeans.
`<T> Map<String,T>`	`getBeansOfType(Class<T> type)`	Return the bean instances that match the given object type (including subclasses), judging from either bean definitions or the value of `getObjectType` in the case of FactoryBeans.
`<T> Map<String,T>`	`getBeansOfType(Class<T> type, boolean includeNonSingletons, boolean allowEagerInit)`	Return the bean instances that match the given object type (including subclasses), judging from either bean definitions or the value of `getObjectType` in the case of FactoryBeans.
`Map<String,Object>`	`getBeansWithAnnotation(Class<? extends Annotation> annotationType)`	Find all beans which are annotated with the supplied `Annotation` type, returning a Map of bean names with corresponding bean instances.
`String`	`getDisplayName()`	Return a friendly name for this context.
`ConfigurableEnvironment`	`getEnvironment()`	Return the `Environment` for this application context in configurable form, allowing for further customization.
`String`	`getId()`	Return the unique id of this application context.
`protected BeanFactory`	`getInternalParentBeanFactory()`	Return the internal bean factory of the parent context if it implements ConfigurableApplicationContext; else, return the parent context itself.
`protected MessageSource`	`getInternalParentMessageSource()`	Return the internal message source of the parent context if it is an AbstractApplicationContext too; else, return the parent context itself.
`String`	`getMessage(String code, Object[] args, String defaultMessage, Locale locale)`	Try to resolve the message.
`String`	`getMessage(String code, Object[] args, Locale locale)`	Try to resolve the message.
`String`	`getMessage(MessageSourceResolvable resolvable, Locale locale)`	Try to resolve the message using all the attributes contained within the `MessageSourceResolvable` argument that was passed in.
`ApplicationContext`	`getParent()`	Return the parent context, or `null` if there is no parent (that is, this context is the root of the context hierarchy).
`BeanFactory`	`getParentBeanFactory()`	Return the parent bean factory, or `null` if there is none.
`protected ResourcePatternResolver`	`getResourcePatternResolver()`	Return the ResourcePatternResolver to use for resolving location patterns into Resource instances.
`Resource[]`	`getResources(String locationPattern)`	Resolve the given location pattern into Resource objects.
`long`	`getStartupDate()`	Return the timestamp (ms) when this context was first loaded.
`Class<?>`	`getType(String name)`	Determine the type of the bean with the given name.
`protected void`	`initApplicationEventMulticaster()`	Initialize the ApplicationEventMulticaster.
`protected void`	`initLifecycleProcessor()`	Initialize the LifecycleProcessor.
`protected void`	`initMessageSource()`	Initialize the MessageSource.
`protected void`	`initPropertySources()`	Replace any stub property sources with actual instances.
`protected void`	`invokeBeanFactoryPostProcessors(ConfigurableListableBeanFactory beanFactory)`	Instantiate and invoke all registered BeanFactoryPostProcessor beans, respecting explicit order if given.
`boolean`	`isActive()`	Determine whether this application context is active, that is, whether it has been refreshed at least once and has not been closed yet.
`boolean`	`isPrototype(String name)`	Is this bean a prototype? That is, will `BeanFactory.getBean(java.lang.String)` always return independent instances?
`boolean`	`isRunning()`	Check whether this component is currently running.
`boolean`	`isSingleton(String name)`	Is this bean a shared singleton? That is, will `BeanFactory.getBean(java.lang.String)` always return the same instance?
`boolean`	`isTypeMatch(String name, Class<?> typeToMatch)`	Check whether the bean with the given name matches the specified type.
`boolean`	`isTypeMatch(String name, ResolvableType typeToMatch)`	Check whether the bean with the given name matches the specified type.
`protected ConfigurableListableBeanFactory`	`obtainFreshBeanFactory()`	Tell the subclass to refresh the internal bean factory.
`protected void`	`onClose()`	Template method which can be overridden to add context-specific shutdown work.
`protected void`	`onRefresh()`	Template method which can be overridden to add context-specific refresh work.
`protected void`	`postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)`	Modify the application context's internal bean factory after its standard initialization.
`protected void`	`prepareBeanFactory(ConfigurableListableBeanFactory beanFactory)`	Configure the factory's standard context characteristics, such as the context's ClassLoader and post-processors.
`protected void`	`prepareRefresh()`	Prepare this context for refreshing, setting its startup date and active flag as well as performing any initialization of property sources.
`void`	`publishEvent(Object event)`	Publish the given event to all listeners.
`protected void`	`publishEvent(Object event, ResolvableType eventType)`	Publish the given event to all listeners.
`void`	`publishEvent(ApplicationEvent event)`	Publish the given event to all listeners.
`void`	`refresh()`	Load or refresh the persistent representation of the configuration, which might be from Java-based configuration, an XML file, a properties file, a relational database schema, or some other format.
`protected abstract void`	`refreshBeanFactory()`	Subclasses must implement this method to perform the actual configuration load.
`protected void`	`registerBeanPostProcessors(ConfigurableListableBeanFactory beanFactory)`	Instantiate and register all BeanPostProcessor beans, respecting explicit order if given.
`protected void`	`registerListeners()`	Add beans that implement ApplicationListener as listeners.
`void`	`registerShutdownHook()`	Register a shutdown hook with the JVM runtime, closing this context on JVM shutdown unless it has already been closed at that time.
`protected void`	`resetCommonCaches()`	Reset Spring's common core caches, in particular the `ReflectionUtils`, `ResolvableType` and `CachedIntrospectionResults` caches.
`void`	`setDisplayName(String displayName)`	Set a friendly name for this context.
`void`	`setEnvironment(ConfigurableEnvironment environment)`	Set the `Environment` for this application context.
`void`	`setId(String id)`	Set the unique id of this application context.
`void`	`setParent(ApplicationContext parent)`	Set the parent of this application context.
`void`	`start()`	Start this component.
`void`	`stop()`	Stop this component, typically in a synchronous fashion, such that the component is fully stopped upon return of this method.
`String`	`toString()`	Return information about this context.

Methods inherited from class org.springframework.core.io.DefaultResourceLoader
addProtocolResolver, getClassLoader, getProtocolResolvers, getResource, getResourceByPath, setClassLoader

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.springframework.context.ConfigurableApplicationContext
addProtocolResolver

Methods inherited from interface org.springframework.core.io.ResourceLoader
getClassLoader, getResource

- Field Detail
  - MESSAGE_SOURCE_BEAN_NAME
```
public static final String MESSAGE_SOURCE_BEAN_NAME
```
    Name of the MessageSource bean in the factory. If none is supplied, message resolution is delegated to the parent.
    See Also:
    MessageSource, Constant Field Values
  - LIFECYCLE_PROCESSOR_BEAN_NAME
```
public static final String LIFECYCLE_PROCESSOR_BEAN_NAME
```
    Name of the LifecycleProcessor bean in the factory. If none is supplied, a DefaultLifecycleProcessor is used.
    See Also:
    LifecycleProcessor, DefaultLifecycleProcessor, Constant Field Values
  - APPLICATION_EVENT_MULTICASTER_BEAN_NAME
```
public static final String APPLICATION_EVENT_MULTICASTER_BEAN_NAME
```
    Name of the ApplicationEventMulticaster bean in the factory. If none is supplied, a default SimpleApplicationEventMulticaster is used.
    See Also:
    ApplicationEventMulticaster, SimpleApplicationEventMulticaster, Constant Field Values
  - logger
```
protected final Log logger
```
    Logger used by this class. Available to subclasses.
- Constructor Detail
  - AbstractApplicationContext
```
public AbstractApplicationContext()
```
    Create a new AbstractApplicationContext with no parent.
  - AbstractApplicationContext
```
public AbstractApplicationContext(ApplicationContext parent)
```
    Create a new AbstractApplicationContext with the given parent context.
    Parameters:
    parent - the parent context
- Method Detail
  - setId
```
public void setId(String id)
```
    Set the unique id of this application context.
    Default is the object id of the context instance, or the name of the context bean if the context is itself defined as a bean.
    Specified by:
    setId in interface ConfigurableApplicationContext
    Parameters:
    id - the unique id of the context
  - getId
```
public String getId()
```
    Description copied from interface: ApplicationContext
    Return the unique id of this application context.
    Specified by:
    getId in interface ApplicationContext
    Returns:
    the unique id of the context, or null if none
  - getApplicationName
```
public String getApplicationName()
```
    Description copied from interface: ApplicationContext
    Return a name for the deployed application that this context belongs to.
    Specified by:
    getApplicationName in interface ApplicationContext
    Returns:
    a name for the deployed application, or the empty String by default
  - setDisplayName
```
public void setDisplayName(String displayName)
```
    Set a friendly name for this context. Typically done during initialization of concrete context implementations.
    Default is the object id of the context instance.
  - getDisplayName
```
public String getDisplayName()
```
    Return a friendly name for this context.
    Specified by:
    getDisplayName in interface ApplicationContext
    Returns:
    a display name for this context (never null)
  - getParent
```
public ApplicationContext getParent()
```
    Return the parent context, or null if there is no parent (that is, this context is the root of the context hierarchy).
    Specified by:
    getParent in interface ApplicationContext
    Returns:
    the parent context, or null if there is no parent
  - setEnvironment
```
public void setEnvironment(ConfigurableEnvironment environment)
```
    Set the Environment for this application context.
    Default value is determined by createEnvironment(). Replacing the default with this method is one option but configuration through getEnvironment() should also be considered. In either case, such modifications should be performed beforerefresh().
    Specified by:
    setEnvironment in interface ConfigurableApplicationContext
    Parameters:
    environment - the new environment
    See Also:
    createEnvironment()
  - getEnvironment
```
public ConfigurableEnvironment getEnvironment()
```
    Return the Environment for this application context in configurable form, allowing for further customization.
    If none specified, a default environment will be initialized via createEnvironment().
    Specified by:
    getEnvironment in interface ConfigurableApplicationContext
    Specified by:
    getEnvironment in interface EnvironmentCapable
  - createEnvironment
```
protected ConfigurableEnvironment createEnvironment()
```
    Create and return a new StandardEnvironment.
    Subclasses may override this method in order to supply a custom ConfigurableEnvironment implementation.
  - getAutowireCapableBeanFactory
```
public AutowireCapableBeanFactory getAutowireCapableBeanFactory()
                                                         throws IllegalStateException
```
    Return this context's internal bean factory as AutowireCapableBeanFactory, if already available.
    Specified by:
    getAutowireCapableBeanFactory in interface ApplicationContext
    Returns:
    the AutowireCapableBeanFactory for this context
    Throws:
    IllegalStateException - if the context does not support the AutowireCapableBeanFactory interface, or does not hold an autowire-capable bean factory yet (e.g. if refresh() has never been called), or if the context has been closed already
    See Also:
    getBeanFactory()
  - getStartupDate
```
public long getStartupDate()
```
    Return the timestamp (ms) when this context was first loaded.
    Specified by:
    getStartupDate in interface ApplicationContext
    Returns:
    the timestamp (ms) when this context was first loaded
  - publishEvent
```
public void publishEvent(ApplicationEvent event)
```
    Publish the given event to all listeners.
    Note: Listeners get initialized after the MessageSource, to be able to access it within listener implementations. Thus, MessageSource implementations cannot publish events.
    Specified by:
    publishEvent in interface ApplicationEventPublisher
    Parameters:
    event - the event to publish (may be application-specific or a standard framework event)
    See Also:
    RequestHandledEvent
  - publishEvent
```
public void publishEvent(Object event)
```
    Publish the given event to all listeners.
    Note: Listeners get initialized after the MessageSource, to be able to access it within listener implementations. Thus, MessageSource implementations cannot publish events.
    Specified by:
    publishEvent in interface ApplicationEventPublisher
    Parameters:
    event - the event to publish (may be an ApplicationEvent or a payload object to be turned into a PayloadApplicationEvent)
    See Also:
    PayloadApplicationEvent
  - publishEvent
```
protected void publishEvent(Object event,
                            ResolvableType eventType)
```
    Publish the given event to all listeners.
    Parameters:
    event - the event to publish (may be an ApplicationEvent or a payload object to be turned into a PayloadApplicationEvent)
    eventType - the resolved event type, if known
    Since:
    4.2
  - getResourcePatternResolver
```
protected ResourcePatternResolver getResourcePatternResolver()
```
    Return the ResourcePatternResolver to use for resolving location patterns into Resource instances. Default is a PathMatchingResourcePatternResolver, supporting Ant-style location patterns.
    Can be overridden in subclasses, for extended resolution strategies, for example in a web environment.
    Do not call this when needing to resolve a location pattern. Call the context's getResources method instead, which will delegate to the ResourcePatternResolver.
    Returns:
    the ResourcePatternResolver for this context
    See Also:
    getResources(java.lang.String), PathMatchingResourcePatternResolver
  - setParent
```
public void setParent(ApplicationContext parent)
```
    Set the parent of this application context.
    The parent environment is merged with this (child) application context environment if the parent is non-null and its environment is an instance of ConfigurableEnvironment.
    Specified by:
    setParent in interface ConfigurableApplicationContext
    Parameters:
    parent - the parent context
    See Also:
    ConfigurableEnvironment.merge(ConfigurableEnvironment)
  - addBeanFactoryPostProcessor
```
public void addBeanFactoryPostProcessor(BeanFactoryPostProcessor postProcessor)
```
    Description copied from interface: ConfigurableApplicationContext
    Add a new BeanFactoryPostProcessor that will get applied to the internal bean factory of this application context on refresh, before any of the bean definitions get evaluated. To be invoked during context configuration.
    Specified by:
    addBeanFactoryPostProcessor in interface ConfigurableApplicationContext
    Parameters:
    postProcessor - the factory processor to register
  - getBeanFactoryPostProcessors
```
public List<BeanFactoryPostProcessor> getBeanFactoryPostProcessors()
```
    Return the list of BeanFactoryPostProcessors that will get applied to the internal BeanFactory.
  - addApplicationListener
```
public void addApplicationListener(ApplicationListener<?> listener)
```
    Description copied from interface: ConfigurableApplicationContext
    Add a new ApplicationListener that will be notified on context events such as context refresh and context shutdown.
    Note that any ApplicationListener registered here will be applied on refresh if the context is not active yet, or on the fly with the current event multicaster in case of a context that is already active.
    Specified by:
    addApplicationListener in interface ConfigurableApplicationContext
    Parameters:
    listener - the ApplicationListener to register
    See Also:
    ContextRefreshedEvent, ContextClosedEvent
  - getApplicationListeners
```
public Collection<ApplicationListener<?>> getApplicationListeners()
```
    Return the list of statically specified ApplicationListeners.
  - refresh
```
public void refresh()
             throws BeansException,
                    IllegalStateException
```
    Description copied from interface: ConfigurableApplicationContext
    Load or refresh the persistent representation of the configuration, which might be from Java-based configuration, an XML file, a properties file, a relational database schema, or some other format.
    As this is a startup method, it should destroy already created singletons if it fails, to avoid dangling resources. In other words, after invocation of this method, either all or no singletons at all should be instantiated.
    Specified by:
    refresh in interface ConfigurableApplicationContext
    Throws:
    BeansException - if the bean factory could not be initialized
    IllegalStateException - if already initialized and multiple refresh attempts are not supported
  - prepareRefresh
```
protected void prepareRefresh()
```
    Prepare this context for refreshing, setting its startup date and active flag as well as performing any initialization of property sources.
  - initPropertySources
```
protected void initPropertySources()
```
    Replace any stub property sources with actual instances.
    See Also:
    PropertySource.StubPropertySource, WebApplicationContextUtils.initServletPropertySources(org.springframework.core.env.MutablePropertySources, javax.servlet.ServletContext)
  - obtainFreshBeanFactory
```
protected ConfigurableListableBeanFactory obtainFreshBeanFactory()
```
    Tell the subclass to refresh the internal bean factory.
    Returns:
    the fresh BeanFactory instance
    See Also:
    refreshBeanFactory(), getBeanFactory()
  - prepareBeanFactory
```
protected void prepareBeanFactory(ConfigurableListableBeanFactory beanFactory)
```
    Configure the factory's standard context characteristics, such as the context's ClassLoader and post-processors.
    Parameters:
    beanFactory - the BeanFactory to configure
  - postProcessBeanFactory
```
protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
```
    Modify the application context's internal bean factory after its standard initialization. All bean definitions will have been loaded, but no beans will have been instantiated yet. This allows for registering special BeanPostProcessors etc in certain ApplicationContext implementations.
    Parameters:
    beanFactory - the bean factory used by the application context
  - invokeBeanFactoryPostProcessors
```
protected void invokeBeanFactoryPostProcessors(ConfigurableListableBeanFactory beanFactory)
```
    Instantiate and invoke all registered BeanFactoryPostProcessor beans, respecting explicit order if given.
    Must be called before singleton instantiation.
  - registerBeanPostProcessors
```
protected void registerBeanPostProcessors(ConfigurableListableBeanFactory beanFactory)
```
    Instantiate and register all BeanPostProcessor beans, respecting explicit order if given.
    Must be called before any instantiation of application beans.
  - initMessageSource
```
protected void initMessageSource()
```
    Initialize the MessageSource. Use parent's if none defined in this context.
  - initApplicationEventMulticaster
```
protected void initApplicationEventMulticaster()
```
    Initialize the ApplicationEventMulticaster. Uses SimpleApplicationEventMulticaster if none defined in the context.
    See Also:
    SimpleApplicationEventMulticaster
  - initLifecycleProcessor
```
protected void initLifecycleProcessor()
```
    Initialize the LifecycleProcessor. Uses DefaultLifecycleProcessor if none defined in the context.
    See Also:
    DefaultLifecycleProcessor
  - onRefresh
```
protected void onRefresh()
                  throws BeansException
```
    Template method which can be overridden to add context-specific refresh work. Called on initialization of special beans, before instantiation of singletons.
    This implementation is empty.
    Throws:
    BeansException - in case of errors
    See Also:
    refresh()
  - registerListeners
```
protected void registerListeners()
```
    Add beans that implement ApplicationListener as listeners. Doesn't affect other listeners, which can be added without being beans.
  - finishBeanFactoryInitialization
```
protected void finishBeanFactoryInitialization(ConfigurableListableBeanFactory beanFactory)
```
    Finish the initialization of this context's bean factory, initializing all remaining singleton beans.
  - finishRefresh
```
protected void finishRefresh()
```
    Finish the refresh of this context, invoking the LifecycleProcessor's onRefresh() method and publishing the ContextRefreshedEvent.
  - cancelRefresh
```
protected void cancelRefresh(BeansException ex)
```
    Cancel this context's refresh attempt, resetting the active flag after an exception got thrown.
    Parameters:
    ex - the exception that led to the cancellation
  - resetCommonCaches
```
protected void resetCommonCaches()
```
    Reset Spring's common core caches, in particular the ReflectionUtils, ResolvableType and CachedIntrospectionResults caches.
    Since:
    4.2
    See Also:
    ReflectionUtils.clearCache(), ResolvableType.clearCache(), CachedIntrospectionResults.clearClassLoader(ClassLoader)
  - registerShutdownHook
```
public void registerShutdownHook()
```
    Register a shutdown hook with the JVM runtime, closing this context on JVM shutdown unless it has already been closed at that time.
    Delegates to doClose() for the actual closing procedure.
    Specified by:
    registerShutdownHook in interface ConfigurableApplicationContext
    See Also:
    Runtime.addShutdownHook(java.lang.Thread), close(), doClose()
  - destroy
```
public void destroy()
```
    DisposableBean callback for destruction of this instance.
    The close() method is the native way to shut down an ApplicationContext, which this method simply delegates to.
    Specified by:
    destroy in interface DisposableBean
    See Also:
    close()
  - close
```
public void close()
```
    Close this application context, destroying all beans in its bean factory.
    Delegates to doClose() for the actual closing procedure. Also removes a JVM shutdown hook, if registered, as it's not needed anymore.
    Specified by:
    close in interface AutoCloseable
    Specified by:
    close in interface Closeable
    Specified by:
    close in interface ConfigurableApplicationContext
    See Also:
    doClose(), registerShutdownHook()
  - doClose
```
protected void doClose()
```
    Actually performs context closing: publishes a ContextClosedEvent and destroys the singletons in the bean factory of this application context.
    Called by both close() and a JVM shutdown hook, if any.
    See Also:
    ContextClosedEvent, destroyBeans(), close(), registerShutdownHook()
  - destroyBeans
```
protected void destroyBeans()
```
    Template method for destroying all beans that this context manages. The default implementation destroy all cached singletons in this context, invoking DisposableBean.destroy() and/or the specified "destroy-method".
    Can be overridden to add context-specific bean destruction steps right before or right after standard singleton destruction, while the context's BeanFactory is still active.
    See Also:
    getBeanFactory(), ConfigurableBeanFactory.destroySingletons()
  - onClose
```
protected void onClose()
```
    Template method which can be overridden to add context-specific shutdown work. The default implementation is empty.
    Called at the end of doClose()'s shutdown procedure, after this context's BeanFactory has been closed. If custom shutdown logic needs to execute while the BeanFactory is still active, override the destroyBeans() method instead.
  - isActive
```
public boolean isActive()
```
    Description copied from interface: ConfigurableApplicationContext
    Determine whether this application context is active, that is, whether it has been refreshed at least once and has not been closed yet.
    Specified by:
    isActive in interface ConfigurableApplicationContext
    Returns:
    whether the context is still active
    See Also:
    ConfigurableApplicationContext.refresh(), ConfigurableApplicationContext.close(), ConfigurableApplicationContext.getBeanFactory()
  - assertBeanFactoryActive
```
protected void assertBeanFactoryActive()
```
    Assert that this context's BeanFactory is currently active, throwing an IllegalStateException if it isn't.
    Invoked by all BeanFactory delegation methods that depend on an active context, i.e. in particular all bean accessor methods.
    The default implementation checks the 'active' status of this context overall. May be overridden for more specific checks, or for a no-op if getBeanFactory() itself throws an exception in such a case.
  - getBean
```
public Object getBean(String name)
               throws BeansException
```
    Description copied from interface: BeanFactory
    Return an instance, which may be shared or independent, of the specified bean.
    This method allows a Spring BeanFactory to be used as a replacement for the Singleton or Prototype design pattern. Callers may retain references to returned objects in the case of Singleton beans.
    Translates aliases back to the corresponding canonical bean name. Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    getBean in interface BeanFactory
    Parameters:
    name - the name of the bean to retrieve
    Returns:
    an instance of the bean
    Throws:
    NoSuchBeanDefinitionException - if there is no bean with the specified name
    BeansException - if the bean could not be obtained
  - getBean
```
public <T> T getBean(String name,
                     Class<T> requiredType)
              throws BeansException
```
    Description copied from interface: BeanFactory
    Return an instance, which may be shared or independent, of the specified bean.
    Behaves the same as BeanFactory.getBean(String), but provides a measure of type safety by throwing a BeanNotOfRequiredTypeException if the bean is not of the required type. This means that ClassCastException can't be thrown on casting the result correctly, as can happen with BeanFactory.getBean(String).
    Translates aliases back to the corresponding canonical bean name. Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    getBean in interface BeanFactory
    Parameters:
    name - the name of the bean to retrieve
    requiredType - type the bean must match. Can be an interface or superclass of the actual class, or null for any match. For example, if the value is Object.class, this method will succeed whatever the class of the returned instance.
    Returns:
    an instance of the bean
    Throws:
    NoSuchBeanDefinitionException - if there is no such bean definition
    BeanNotOfRequiredTypeException - if the bean is not of the required type
    BeansException - if the bean could not be created
  - getBean
```
public <T> T getBean(Class<T> requiredType)
              throws BeansException
```
    Description copied from interface: BeanFactory
    Return the bean instance that uniquely matches the given object type, if any.
    This method goes into ListableBeanFactory by-type lookup territory but may also be translated into a conventional by-name lookup based on the name of the given type. For more extensive retrieval operations across sets of beans, use ListableBeanFactory and/or BeanFactoryUtils.
    Specified by:
    getBean in interface BeanFactory
    Parameters:
    requiredType - type the bean must match; can be an interface or superclass
    Returns:
    an instance of the single bean matching the required type
    Throws:
    NoSuchBeanDefinitionException - if no bean of the given type was found
    NoUniqueBeanDefinitionException - if more than one bean of the given type was found
    BeansException - if the bean could not be created
    See Also:
    ListableBeanFactory
  - getBean
```
public Object getBean(String name,
                      Object... args)
               throws BeansException
```
    Description copied from interface: BeanFactory
    Return an instance, which may be shared or independent, of the specified bean.
    Allows for specifying explicit constructor arguments / factory method arguments, overriding the specified default arguments (if any) in the bean definition.
    Specified by:
    getBean in interface BeanFactory
    Parameters:
    name - the name of the bean to retrieve
    args - arguments to use when creating a bean instance using explicit arguments (only applied when creating a new instance as opposed to retrieving an existing one)
    Returns:
    an instance of the bean
    Throws:
    NoSuchBeanDefinitionException - if there is no such bean definition
    BeanDefinitionStoreException - if arguments have been given but the affected bean isn't a prototype
    BeansException - if the bean could not be created
  - getBean
```
public <T> T getBean(Class<T> requiredType,
                     Object... args)
              throws BeansException
```
    Description copied from interface: BeanFactory
    Return an instance, which may be shared or independent, of the specified bean.
    Allows for specifying explicit constructor arguments / factory method arguments, overriding the specified default arguments (if any) in the bean definition.
    This method goes into ListableBeanFactory by-type lookup territory but may also be translated into a conventional by-name lookup based on the name of the given type. For more extensive retrieval operations across sets of beans, use ListableBeanFactory and/or BeanFactoryUtils.
    Specified by:
    getBean in interface BeanFactory
    Parameters:
    requiredType - type the bean must match; can be an interface or superclass
    args - arguments to use when creating a bean instance using explicit arguments (only applied when creating a new instance as opposed to retrieving an existing one)
    Returns:
    an instance of the bean
    Throws:
    NoSuchBeanDefinitionException - if there is no such bean definition
    BeanDefinitionStoreException - if arguments have been given but the affected bean isn't a prototype
    BeansException - if the bean could not be created
  - containsBean
```
public boolean containsBean(String name)
```
    Description copied from interface: BeanFactory
    Does this bean factory contain a bean definition or externally registered singleton instance with the given name?
    If the given name is an alias, it will be translated back to the corresponding canonical bean name.
    If this factory is hierarchical, will ask any parent factory if the bean cannot be found in this factory instance.
    If a bean definition or singleton instance matching the given name is found, this method will return true whether the named bean definition is concrete or abstract, lazy or eager, in scope or not. Therefore, note that a true return value from this method does not necessarily indicate that BeanFactory.getBean(java.lang.String) will be able to obtain an instance for the same name.
    Specified by:
    containsBean in interface BeanFactory
    Parameters:
    name - the name of the bean to query
    Returns:
    whether a bean with the given name is present
  - isSingleton
```
public boolean isSingleton(String name)
                    throws NoSuchBeanDefinitionException
```
    Description copied from interface: BeanFactory
    Is this bean a shared singleton? That is, will BeanFactory.getBean(java.lang.String) always return the same instance?
    Note: This method returning false does not clearly indicate independent instances. It indicates non-singleton instances, which may correspond to a scoped bean as well. Use the BeanFactory.isPrototype(java.lang.String) operation to explicitly check for independent instances.
    Translates aliases back to the corresponding canonical bean name. Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    isSingleton in interface BeanFactory
    Parameters:
    name - the name of the bean to query
    Returns:
    whether this bean corresponds to a singleton instance
    Throws:
    NoSuchBeanDefinitionException - if there is no bean with the given name
    See Also:
    BeanFactory.getBean(java.lang.String), BeanFactory.isPrototype(java.lang.String)
  - isPrototype
```
public boolean isPrototype(String name)
                    throws NoSuchBeanDefinitionException
```
    Description copied from interface: BeanFactory
    Is this bean a prototype? That is, will BeanFactory.getBean(java.lang.String) always return independent instances?
    Note: This method returning false does not clearly indicate a singleton object. It indicates non-independent instances, which may correspond to a scoped bean as well. Use the BeanFactory.isSingleton(java.lang.String) operation to explicitly check for a shared singleton instance.
    Translates aliases back to the corresponding canonical bean name. Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    isPrototype in interface BeanFactory
    Parameters:
    name - the name of the bean to query
    Returns:
    whether this bean will always deliver independent instances
    Throws:
    NoSuchBeanDefinitionException - if there is no bean with the given name
    See Also:
    BeanFactory.getBean(java.lang.String), BeanFactory.isSingleton(java.lang.String)
  - isTypeMatch
```
public boolean isTypeMatch(String name,
                           ResolvableType typeToMatch)
                    throws NoSuchBeanDefinitionException
```
    Description copied from interface: BeanFactory
    Check whether the bean with the given name matches the specified type. More specifically, check whether a BeanFactory.getBean(java.lang.String) call for the given name would return an object that is assignable to the specified target type.
    Translates aliases back to the corresponding canonical bean name. Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    isTypeMatch in interface BeanFactory
    Parameters:
    name - the name of the bean to query
    typeToMatch - the type to match against (as a ResolvableType)
    Returns:
    true if the bean type matches, false if it doesn't match or cannot be determined yet
    Throws:
    NoSuchBeanDefinitionException - if there is no bean with the given name
    See Also:
    BeanFactory.getBean(java.lang.String), BeanFactory.getType(java.lang.String)
  - isTypeMatch
```
public boolean isTypeMatch(String name,
                           Class<?> typeToMatch)
                    throws NoSuchBeanDefinitionException
```
    Description copied from interface: BeanFactory
    Check whether the bean with the given name matches the specified type. More specifically, check whether a BeanFactory.getBean(java.lang.String) call for the given name would return an object that is assignable to the specified target type.
    Translates aliases back to the corresponding canonical bean name. Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    isTypeMatch in interface BeanFactory
    Parameters:
    name - the name of the bean to query
    typeToMatch - the type to match against (as a Class)
    Returns:
    true if the bean type matches, false if it doesn't match or cannot be determined yet
    Throws:
    NoSuchBeanDefinitionException - if there is no bean with the given name
    See Also:
    BeanFactory.getBean(java.lang.String), BeanFactory.getType(java.lang.String)
  - getType
```
public Class<?> getType(String name)
                 throws NoSuchBeanDefinitionException
```
    Description copied from interface: BeanFactory
    Determine the type of the bean with the given name. More specifically, determine the type of object that BeanFactory.getBean(java.lang.String) would return for the given name.
    For a FactoryBean, return the type of object that the FactoryBean creates, as exposed by FactoryBean.getObjectType().
    Translates aliases back to the corresponding canonical bean name. Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    getType in interface BeanFactory
    Parameters:
    name - the name of the bean to query
    Returns:
    the type of the bean, or null if not determinable
    Throws:
    NoSuchBeanDefinitionException - if there is no bean with the given name
    See Also:
    BeanFactory.getBean(java.lang.String), BeanFactory.isTypeMatch(java.lang.String, org.springframework.core.ResolvableType)
  - getAliases
```
public String[] getAliases(String name)
```
    Description copied from interface: BeanFactory
    Return the aliases for the given bean name, if any. All of those aliases point to the same bean when used in a BeanFactory.getBean(java.lang.String) call.
    If the given name is an alias, the corresponding original bean name and other aliases (if any) will be returned, with the original bean name being the first element in the array.
    Will ask the parent factory if the bean cannot be found in this factory instance.
    Specified by:
    getAliases in interface BeanFactory
    Parameters:
    name - the bean name to check for aliases
    Returns:
    the aliases, or an empty array if none
    See Also:
    BeanFactory.getBean(java.lang.String)
  - containsBeanDefinition
```
public boolean containsBeanDefinition(String beanName)
```
    Description copied from interface: ListableBeanFactory
    Check if this bean factory contains a bean definition with the given name.
    Does not consider any hierarchy this factory may participate in, and ignores any singleton beans that have been registered by other means than bean definitions.
    Specified by:
    containsBeanDefinition in interface ListableBeanFactory
    Parameters:
    beanName - the name of the bean to look for
    Returns:
    if this bean factory contains a bean definition with the given name
    See Also:
    BeanFactory.containsBean(java.lang.String)
  - getBeanDefinitionCount
```
public int getBeanDefinitionCount()
```
    Description copied from interface: ListableBeanFactory
    Return the number of beans defined in the factory.
    Does not consider any hierarchy this factory may participate in, and ignores any singleton beans that have been registered by other means than bean definitions.
    Specified by:
    getBeanDefinitionCount in interface ListableBeanFactory
    Returns:
    the number of beans defined in the factory
  - getBeanDefinitionNames
```
public String[] getBeanDefinitionNames()
```
    Description copied from interface: ListableBeanFactory
    Return the names of all beans defined in this factory.
    Does not consider any hierarchy this factory may participate in, and ignores any singleton beans that have been registered by other means than bean definitions.
    Specified by:
    getBeanDefinitionNames in interface ListableBeanFactory
    Returns:
    the names of all beans defined in this factory, or an empty array if none defined
  - getBeanNamesForType
```
public String[] getBeanNamesForType(ResolvableType type)
```
    Description copied from interface: ListableBeanFactory
    Return the names of beans matching the given type (including subclasses), judging from either bean definitions or the value of getObjectType in the case of FactoryBeans.
    NOTE: This method introspects top-level beans only. It does not check nested beans which might match the specified type as well.
    Does consider objects created by FactoryBeans, which means that FactoryBeans will get initialized. If the object created by the FactoryBean doesn't match, the raw FactoryBean itself will be matched against the type.
    Does not consider any hierarchy this factory may participate in. Use BeanFactoryUtils' beanNamesForTypeIncludingAncestors to include beans in ancestor factories too.
    Note: Does not ignore singleton beans that have been registered by other means than bean definitions.
    This version of getBeanNamesForType matches all kinds of beans, be it singletons, prototypes, or FactoryBeans. In most implementations, the result will be the same as for getBeanNamesForType(type, true, true).
    Bean names returned by this method should always return bean names in the order of definition in the backend configuration, as far as possible.
    Specified by:
    getBeanNamesForType in interface ListableBeanFactory
    Parameters:
    type - the class or interface to match, or null for all bean names
    Returns:
    the names of beans (or objects created by FactoryBeans) matching the given object type (including subclasses), or an empty array if none
    See Also:
    BeanFactory.isTypeMatch(String, ResolvableType), FactoryBean.getObjectType(), BeanFactoryUtils.beanNamesForTypeIncludingAncestors(ListableBeanFactory, ResolvableType)
  - getBeanNamesForType
```
public String[] getBeanNamesForType(Class<?> type)
```
    Description copied from interface: ListableBeanFactory
    Return the names of beans matching the given type (including subclasses), judging from either bean definitions or the value of getObjectType in the case of FactoryBeans.
    NOTE: This method introspects top-level beans only. It does not check nested beans which might match the specified type as well.
    Does consider objects created by FactoryBeans, which means that FactoryBeans will get initialized. If the object created by the FactoryBean doesn't match, the raw FactoryBean itself will be matched against the type.
    Does not consider any hierarchy this factory may participate in. Use BeanFactoryUtils' beanNamesForTypeIncludingAncestors to include beans in ancestor factories too.
    Note: Does not ignore singleton beans that have been registered by other means than bean definitions.
    This version of getBeanNamesForType matches all kinds of beans, be it singletons, prototypes, or FactoryBeans. In most implementations, the result will be the same as for getBeanNamesForType(type, true, true).
    Bean names returned by this method should always return bean names in the order of definition in the backend configuration, as far as possible.
    Specified by:
    getBeanNamesForType in interface ListableBeanFactory
    Parameters:
    type - the class or interface to match, or null for all bean names
    Returns:
    the names of beans (or objects created by FactoryBeans) matching the given object type (including subclasses), or an empty array if none
    See Also:
    FactoryBean.getObjectType(), BeanFactoryUtils.beanNamesForTypeIncludingAncestors(ListableBeanFactory, Class)
  - getBeanNamesForType
```
public String[] getBeanNamesForType(Class<?> type,
                                    boolean includeNonSingletons,
                                    boolean allowEagerInit)
```
    Description copied from interface: ListableBeanFactory
    Return the names of beans matching the given type (including subclasses), judging from either bean definitions or the value of getObjectType in the case of FactoryBeans.
    NOTE: This method introspects top-level beans only. It does not check nested beans which might match the specified type as well.
    Does consider objects created by FactoryBeans if the "allowEagerInit" flag is set, which means that FactoryBeans will get initialized. If the object created by the FactoryBean doesn't match, the raw FactoryBean itself will be matched against the type. If "allowEagerInit" is not set, only raw FactoryBeans will be checked (which doesn't require initialization of each FactoryBean).
    Does not consider any hierarchy this factory may participate in. Use BeanFactoryUtils' beanNamesForTypeIncludingAncestors to include beans in ancestor factories too.
    Note: Does not ignore singleton beans that have been registered by other means than bean definitions.
    Bean names returned by this method should always return bean names in the order of definition in the backend configuration, as far as possible.
    Specified by:
    getBeanNamesForType in interface ListableBeanFactory
    Parameters:
    type - the class or interface to match, or null for all bean names
    includeNonSingletons - whether to include prototype or scoped beans too or just singletons (also applies to FactoryBeans)
    allowEagerInit - whether to initialize lazy-init singletons and objects created by FactoryBeans (or by factory methods with a "factory-bean" reference) for the type check. Note that FactoryBeans need to be eagerly initialized to determine their type: So be aware that passing in "true" for this flag will initialize FactoryBeans and "factory-bean" references.
    Returns:
    the names of beans (or objects created by FactoryBeans) matching the given object type (including subclasses), or an empty array if none
    See Also:
    FactoryBean.getObjectType(), BeanFactoryUtils.beanNamesForTypeIncludingAncestors(ListableBeanFactory, Class, boolean, boolean)
  - getBeansOfType
```
public <T> Map<String,T> getBeansOfType(Class<T> type)
                                       throws BeansException
```
    Description copied from interface: ListableBeanFactory
    Return the bean instances that match the given object type (including subclasses), judging from either bean definitions or the value of getObjectType in the case of FactoryBeans.
    NOTE: This method introspects top-level beans only. It does not check nested beans which might match the specified type as well.
    Does consider objects created by FactoryBeans, which means that FactoryBeans will get initialized. If the object created by the FactoryBean doesn't match, the raw FactoryBean itself will be matched against the type.
    Does not consider any hierarchy this factory may participate in. Use BeanFactoryUtils' beansOfTypeIncludingAncestors to include beans in ancestor factories too.
    Note: Does not ignore singleton beans that have been registered by other means than bean definitions.
    This version of getBeansOfType matches all kinds of beans, be it singletons, prototypes, or FactoryBeans. In most implementations, the result will be the same as for getBeansOfType(type, true, true).
    The Map returned by this method should always return bean names and corresponding bean instances in the order of definition in the backend configuration, as far as possible.
    Specified by:
    getBeansOfType in interface ListableBeanFactory
    Parameters:
    type - the class or interface to match, or null for all concrete beans
    Returns:
    a Map with the matching beans, containing the bean names as keys and the corresponding bean instances as values
    Throws:
    BeansException - if a bean could not be created
    See Also:
    FactoryBean.getObjectType(), BeanFactoryUtils.beansOfTypeIncludingAncestors(ListableBeanFactory, Class)
  - getBeansOfType
```
public <T> Map<String,T> getBeansOfType(Class<T> type,
                                              boolean includeNonSingletons,
                                              boolean allowEagerInit)
                                       throws BeansException
```
    Description copied from interface: ListableBeanFactory
    Return the bean instances that match the given object type (including subclasses), judging from either bean definitions or the value of getObjectType in the case of FactoryBeans.
    NOTE: This method introspects top-level beans only. It does not check nested beans which might match the specified type as well.
    Does consider objects created by FactoryBeans if the "allowEagerInit" flag is set, which means that FactoryBeans will get initialized. If the object created by the FactoryBean doesn't match, the raw FactoryBean itself will be matched against the type. If "allowEagerInit" is not set, only raw FactoryBeans will be checked (which doesn't require initialization of each FactoryBean).
    Does not consider any hierarchy this factory may participate in. Use BeanFactoryUtils' beansOfTypeIncludingAncestors to include beans in ancestor factories too.
    Note: Does not ignore singleton beans that have been registered by other means than bean definitions.
    The Map returned by this method should always return bean names and corresponding bean instances in the order of definition in the backend configuration, as far as possible.
    Specified by:
    getBeansOfType in interface ListableBeanFactory
    Parameters:
    type - the class or interface to match, or null for all concrete beans
    includeNonSingletons - whether to include prototype or scoped beans too or just singletons (also applies to FactoryBeans)
    allowEagerInit - whether to initialize lazy-init singletons and objects created by FactoryBeans (or by factory methods with a "factory-bean" reference) for the type check. Note that FactoryBeans need to be eagerly initialized to determine their type: So be aware that passing in "true" for this flag will initialize FactoryBeans and "factory-bean" references.
    Returns:
    a Map with the matching beans, containing the bean names as keys and the corresponding bean instances as values
    Throws:
    BeansException - if a bean could not be created
    See Also:
    FactoryBean.getObjectType(), BeanFactoryUtils.beansOfTypeIncludingAncestors(ListableBeanFactory, Class, boolean, boolean)
  - getBeanNamesForAnnotation
```
public String[] getBeanNamesForAnnotation(Class<? extends Annotation> annotationType)
```
    Description copied from interface: ListableBeanFactory
    Find all names of beans which are annotated with the supplied Annotation type, without creating corresponding bean instances yet.
    Note that this method considers objects created by FactoryBeans, which means that FactoryBeans will get initialized in order to determine their object type.
    Specified by:
    getBeanNamesForAnnotation in interface ListableBeanFactory
    Parameters:
    annotationType - the type of annotation to look for
    Returns:
    the names of all matching beans
    See Also:
    ListableBeanFactory.findAnnotationOnBean(java.lang.String, java.lang.Class<A>)
  - getBeansWithAnnotation
```
public Map<String,Object> getBeansWithAnnotation(Class<? extends Annotation> annotationType)
                                                throws BeansException
```
    Description copied from interface: ListableBeanFactory
    Find all beans which are annotated with the supplied Annotation type, returning a Map of bean names with corresponding bean instances.
    Note that this method considers objects created by FactoryBeans, which means that FactoryBeans will get initialized in order to determine their object type.
    Specified by:
    getBeansWithAnnotation in interface ListableBeanFactory
    Parameters:
    annotationType - the type of annotation to look for
    Returns:
    a Map with the matching beans, containing the bean names as keys and the corresponding bean instances as values
    Throws:
    BeansException - if a bean could not be created
    See Also:
    ListableBeanFactory.findAnnotationOnBean(java.lang.String, java.lang.Class<A>)
  - findAnnotationOnBean
```
public <A extends Annotation> A findAnnotationOnBean(String beanName,
                                                     Class<A> annotationType)
                                              throws NoSuchBeanDefinitionException
```
    Description copied from interface: ListableBeanFactory
    Find an Annotation of annotationType on the specified bean, traversing its interfaces and super classes if no annotation can be found on the given class itself.
    Specified by:
    findAnnotationOnBean in interface ListableBeanFactory
    Parameters:
    beanName - the name of the bean to look for annotations on
    annotationType - the type of annotation to look for
    Returns:
    the annotation of the given type if found, or null otherwise
    Throws:
    NoSuchBeanDefinitionException - if there is no bean with the given name
    See Also:
    ListableBeanFactory.getBeanNamesForAnnotation(java.lang.Class<? extends java.lang.annotation.Annotation>), ListableBeanFactory.getBeansWithAnnotation(java.lang.Class<? extends java.lang.annotation.Annotation>)
  - getParentBeanFactory
```
public BeanFactory getParentBeanFactory()
```
    Description copied from interface: HierarchicalBeanFactory
    Return the parent bean factory, or null if there is none.
    Specified by:
    getParentBeanFactory in interface HierarchicalBeanFactory
  - containsLocalBean
```
public boolean containsLocalBean(String name)
```
    Description copied from interface: HierarchicalBeanFactory
    Return whether the local bean factory contains a bean of the given name, ignoring beans defined in ancestor contexts.
    This is an alternative to containsBean, ignoring a bean of the given name from an ancestor bean factory.
    Specified by:
    containsLocalBean in interface HierarchicalBeanFactory
    Parameters:
    name - the name of the bean to query
    Returns:
    whether a bean with the given name is defined in the local factory
    See Also:
    BeanFactory.containsBean(java.lang.String)
  - getInternalParentBeanFactory
```
protected BeanFactory getInternalParentBeanFactory()
```
    Return the internal bean factory of the parent context if it implements ConfigurableApplicationContext; else, return the parent context itself.
    See Also:
    ConfigurableApplicationContext.getBeanFactory()
  - getMessage
```
public String getMessage(String code,
                         Object[] args,
                         String defaultMessage,
                         Locale locale)
```
    Description copied from interface: MessageSource
    Try to resolve the message. Return default message if no message was found.
    Specified by:
    getMessage in interface MessageSource
    Parameters:
    code - the message code to look up, e.g. 'calculator.noRateSet'. MessageSource users are encouraged to base message names on qualified class or package names, avoiding potential conflicts and ensuring maximum clarity.
    args - an array of arguments that will be filled in for params within the message (params look like "{0}", "{1,date}", "{2,time}" within a message), or null if none
    defaultMessage - a default message to return if the lookup fails
    locale - the locale in which to do the lookup
    Returns:
    the resolved message if the lookup was successful, otherwise the default message passed as a parameter (which may be null)
    See Also:
    MessageSource.getMessage(MessageSourceResolvable, Locale), MessageFormat
  - getMessage
```
public String getMessage(String code,
                         Object[] args,
                         Locale locale)
                  throws NoSuchMessageException
```
    Description copied from interface: MessageSource
    Try to resolve the message. Treat as an error if the message can't be found.
    Specified by:
    getMessage in interface MessageSource
    Parameters:
    code - the message code to look up, e.g. 'calculator.noRateSet'. MessageSource users are encouraged to base message names on qualified class or package names, avoiding potential conflicts and ensuring maximum clarity.
    args - an array of arguments that will be filled in for params within the message (params look like "{0}", "{1,date}", "{2,time}" within a message), or null if none
    locale - the locale in which to do the lookup
    Returns:
    the resolved message (never null)
    Throws:
    NoSuchMessageException - if no corresponding message was found
    See Also:
    MessageSource.getMessage(MessageSourceResolvable, Locale), MessageFormat
  - getMessage
```
public String getMessage(MessageSourceResolvable resolvable,
                         Locale locale)
                  throws NoSuchMessageException
```
    Description copied from interface: MessageSource
    Try to resolve the message using all the attributes contained within the MessageSourceResolvable argument that was passed in.
    NOTE: We must throw a NoSuchMessageException on this method since at the time of calling this method we aren't able to determine if the defaultMessage property of the resolvable is null or not.
    Specified by:
    getMessage in interface MessageSource
    Parameters:
    resolvable - the value object storing attributes required to resolve a message (may include a default message)
    locale - the locale in which to do the lookup
    Returns:
    the resolved message (never null since even a MessageSourceResolvable-provided default message needs to be non-null)
    Throws:
    NoSuchMessageException - if no corresponding message was found (and no default message was provided by the MessageSourceResolvable)
    See Also:
    MessageSourceResolvable.getCodes(), MessageSourceResolvable.getArguments(), MessageSourceResolvable.getDefaultMessage(), MessageFormat
  - getInternalParentMessageSource
```
protected MessageSource getInternalParentMessageSource()
```
    Return the internal message source of the parent context if it is an AbstractApplicationContext too; else, return the parent context itself.
  - getResources
```
public Resource[] getResources(String locationPattern)
                        throws IOException
```
    Description copied from interface: ResourcePatternResolver
    Resolve the given location pattern into Resource objects.
    Overlapping resource entries that point to the same physical resource should be avoided, as far as possible. The result should have set semantics.
    Specified by:
    getResources in interface ResourcePatternResolver
    Parameters:
    locationPattern - the location pattern to resolve
    Returns:
    the corresponding Resource objects
    Throws:
    IOException - in case of I/O errors
  - start
```
public void start()
```
    Description copied from interface: Lifecycle
    Start this component.
    Should not throw an exception if the component is already running.
    In the case of a container, this will propagate the start signal to all components that apply.
    Specified by:
    start in interface Lifecycle
    See Also:
    SmartLifecycle.isAutoStartup()
  - stop
```
public void stop()
```
    Description copied from interface: Lifecycle
    Stop this component, typically in a synchronous fashion, such that the component is fully stopped upon return of this method. Consider implementing SmartLifecycle and its stop(Runnable) variant when asynchronous stop behavior is necessary.
    Note that this stop notification is not guaranteed to come before destruction: On regular shutdown, Lifecycle beans will first receive a stop notification before the general destruction callbacks are being propagated; however, on hot refresh during a context's lifetime or on aborted refresh attempts, a given bean's destroy method will be called without any consideration of stop signals upfront.
    Should not throw an exception if the component is not running (not started yet).
    In the case of a container, this will propagate the stop signal to all components that apply.
    Specified by:
    stop in interface Lifecycle
    See Also:
    SmartLifecycle.stop(Runnable), DisposableBean.destroy()
  - isRunning
```
public boolean isRunning()
```
    Description copied from interface: Lifecycle
    Check whether this component is currently running.
    In the case of a container, this will return true only if all components that apply are currently running.
    Specified by:
    isRunning in interface Lifecycle
    Returns:
    whether the component is currently running
  - refreshBeanFactory
```
protected abstract void refreshBeanFactory()
                                    throws BeansException,
                                           IllegalStateException
```
    Subclasses must implement this method to perform the actual configuration load. The method is invoked by refresh() before any other initialization work.
    A subclass will either create a new bean factory and hold a reference to it, or return a single BeanFactory instance that it holds. In the latter case, it will usually throw an IllegalStateException if refreshing the context more than once.
    Throws:
    BeansException - if initialization of the bean factory failed
    IllegalStateException - if already initialized and multiple refresh attempts are not supported
  - closeBeanFactory
```
protected abstract void closeBeanFactory()
```
    Subclasses must implement this method to release their internal bean factory. This method gets invoked by close() after all other shutdown work.
    Should never throw an exception but rather log shutdown failures.
  - getBeanFactory
```
public abstract ConfigurableListableBeanFactory getBeanFactory()
                                                        throws IllegalStateException
```
    Subclasses must return their internal bean factory here. They should implement the lookup efficiently, so that it can be called repeatedly without a performance penalty.
    Note: Subclasses should check whether the context is still active before returning the internal bean factory. The internal factory should generally be considered unavailable once the context has been closed.
    Specified by:
    getBeanFactory in interface ConfigurableApplicationContext
    Returns:
    this application context's internal bean factory (never null)
    Throws:
    IllegalStateException - if the context does not hold an internal bean factory yet (usually if refresh() has never been called) or if the context has been closed already
    See Also:
    refreshBeanFactory(), closeBeanFactory()
  - toString
```
public String toString()
```
    Return information about this context.
    Overrides:
    toString in class Object

Class AbstractApplicationContext

Nested Class Summary

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

Field Summary

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

Fields inherited from interface org.springframework.context.ConfigurableApplicationContext

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

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

Constructor Summary

Method Summary

Methods inherited from class org.springframework.core.io.DefaultResourceLoader

Methods inherited from class java.lang.Object

Methods inherited from interface org.springframework.context.ConfigurableApplicationContext

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

Field Detail

MESSAGE_SOURCE_BEAN_NAME

LIFECYCLE_PROCESSOR_BEAN_NAME

APPLICATION_EVENT_MULTICASTER_BEAN_NAME

logger

Constructor Detail

AbstractApplicationContext

AbstractApplicationContext

Method Detail

setId

getId

getApplicationName

setDisplayName

getDisplayName

getParent

setEnvironment

getEnvironment

createEnvironment

getAutowireCapableBeanFactory

getStartupDate

publishEvent

publishEvent

publishEvent

getResourcePatternResolver

setParent

addBeanFactoryPostProcessor

getBeanFactoryPostProcessors

addApplicationListener

getApplicationListeners

refresh

prepareRefresh

initPropertySources

obtainFreshBeanFactory

prepareBeanFactory

postProcessBeanFactory

invokeBeanFactoryPostProcessors

registerBeanPostProcessors

initMessageSource

initApplicationEventMulticaster

initLifecycleProcessor

onRefresh

registerListeners

finishBeanFactoryInitialization

finishRefresh

cancelRefresh

resetCommonCaches

registerShutdownHook

destroy

close

doClose

destroyBeans

onClose

isActive

assertBeanFactoryActive

getBean

getBean

getBean

getBean

getBean

containsBean

isSingleton

isPrototype

isTypeMatch

isTypeMatch

getType

getAliases