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:

BeanFactory, DisposableBean, HierarchicalBeanFactory, ListableBeanFactory, BeanDefinitionRegistry, ApplicationContext, ApplicationEventPublisher, ConfigurableApplicationContext, Lifecycle, MessageSource, AliasRegistry, ResourceLoader, ResourcePatternResolver

public class AnnotationConfigApplicationContext
extends GenericApplicationContext

Standalone application context, accepting annotated classes as input - in particular @Configuration-annotated classes, but also plain @Components and JSR-330 compliant classes using javax.inject annotations. Allows for registering classes one by one (register(java.lang.Class...)) as well as for classpath scanning (scan(java.lang.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.

Since:

3.0

Author:

Chris Beams, Juergen Hoeller

See Also:

register(java.lang.Class...), scan(java.lang.String...), AnnotatedBeanDefinitionReader, ClassPathBeanDefinitionScanner, GenericXmlApplicationContext

Field Summary

private AnnotatedBeanDefinitionReader	reader
private ClassPathBeanDefinitionScanner	scanner

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.context.ConfigurableApplicationContext

CONFIG_LOCATION_DELIMITERS, CONVERSION_SERVICE_BEAN_NAME, LOAD_TIME_WEAVER_BEAN_NAME, SYSTEM_ENVIRONMENT_BEAN_NAME, SYSTEM_PROPERTIES_BEAN_NAME

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

FACTORY_BEAN_PREFIX

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

CLASSPATH_ALL_URL_PREFIX

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

CLASSPATH_URL_PREFIX

Constructor Summary

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

AnnotationConfigApplicationContext(java.lang.Class<?>... annotatedClasses)
Create a new AnnotationConfigApplicationContext, deriving bean definitions from the given annotated classes and automatically refreshing the context.

AnnotationConfigApplicationContext(java.lang.String... basePackages)
Create a new AnnotationConfigApplicationContext, scanning for bean definitions in the given packages and automatically refreshing the context.

Method Summary

void	register(java.lang.Class<?>... annotatedClasses) Register an annotated class to be processed.
void	scan(java.lang.String... basePackages) Perform a scan within the specified base packages.
void	setBeanNameGenerator(BeanNameGenerator beanNameGenerator) Set the BeanNameGenerator to use for detected bean classes.
void	setScopeMetadataResolver(ScopeMetadataResolver scopeMetadataResolver) Set the ScopeMetadataResolver to use for detected bean classes.

Methods inherited from class org.springframework.context.support.GenericApplicationContext

cancelRefresh, closeBeanFactory, getBeanDefinition, getBeanFactory, getDefaultListableBeanFactory, getResource, getResources, isAlias, isBeanNameInUse, refreshBeanFactory, registerAlias, registerBeanDefinition, removeAlias, removeBeanDefinition, setAllowBeanDefinitionOverriding, setAllowCircularReferences, setId, setParent, setResourceLoader

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

addApplicationListener, addBeanFactoryPostProcessor, addListener, close, containsBean, containsBeanDefinition, containsLocalBean, destroy, destroyBeans, doClose, findAnnotationOnBean, finishBeanFactoryInitialization, finishRefresh, getAliases, getApplicationListeners, getAutowireCapableBeanFactory, getBean, getBean, getBean, getBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanFactoryPostProcessors, getBeanNamesForType, getBeanNamesForType, getBeansOfType, getBeansOfType, getBeansWithAnnotation, getDisplayName, getId, getInternalParentBeanFactory, getInternalParentMessageSource, getMessage, getMessage, getMessage, getParent, getParentBeanFactory, getResourcePatternResolver, getStartupDate, getType, initApplicationEventMulticaster, initLifecycleProcessor, initMessageSource, invokeBeanFactoryPostProcessors, isActive, isPrototype, isRunning, isSingleton, isTypeMatch, obtainFreshBeanFactory, onClose, onRefresh, postProcessBeanFactory, prepareBeanFactory, prepareRefresh, publishEvent, refresh, registerBeanPostProcessors, registerListeners, registerShutdownHook, setDisplayName, start, stop, toString

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

getClassLoader, 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.beans.factory.support.BeanDefinitionRegistry

containsBeanDefinition, getBeanDefinitionCount, getBeanDefinitionNames

Methods inherited from interface org.springframework.core.AliasRegistry

getAliases

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

getClassLoader

Field Detail

reader

private final AnnotatedBeanDefinitionReader reader

scanner

private final ClassPathBeanDefinitionScanner scanner

Constructor Detail

AnnotationConfigApplicationContext

public AnnotationConfigApplicationContext()

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

AnnotationConfigApplicationContext

public AnnotationConfigApplicationContext(java.lang.Class<?>... annotatedClasses)

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

Parameters:

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

AnnotationConfigApplicationContext

public AnnotationConfigApplicationContext(java.lang.String... basePackages)

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

Parameters:

basePackages - the packages to check for annotated classes

Method Detail

setBeanNameGenerator

public void setBeanNameGenerator(BeanNameGenerator beanNameGenerator)

Set the BeanNameGenerator to use for detected bean classes.

Default is a AnnotationBeanNameGenerator.

setScopeMetadataResolver

public void setScopeMetadataResolver(ScopeMetadataResolver scopeMetadataResolver)

Set the ScopeMetadataResolver to use for detected bean classes.

The default is an AnnotationScopeMetadataResolver.

register

public void register(java.lang.Class<?>... annotatedClasses)

Register an annotated class to be processed. Allows for programmatically building a AnnotationConfigApplicationContext. Note that AbstractApplicationContext.refresh() must be called in order for the context to fully process the new class.

Calls to register(java.lang.Class...) are idempotent; adding the same annotated class more than once has no additional effect.

Parameters:

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

See Also:

AbstractApplicationContext.refresh()

scan

public void scan(java.lang.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.

Parameters:

basePackages - the packages to check for annotated classes

See Also:

AbstractApplicationContext.refresh()