org.springframework.context
Interface ConfigurableApplicationContext

All Superinterfaces:
ApplicationContext, ApplicationEventPublisher, BeanFactory, HierarchicalBeanFactory, Lifecycle, ListableBeanFactory, MessageSource, ResourceLoader, ResourcePatternResolver
All Known Subinterfaces:
ConfigurablePortletApplicationContext, ConfigurableWebApplicationContext
All Known Implementing Classes:
AbstractApplicationContext, AbstractRefreshableApplicationContext, AbstractRefreshableConfigApplicationContext, AbstractRefreshablePortletApplicationContext, AbstractRefreshableWebApplicationContext, AbstractXmlApplicationContext, AnnotationConfigApplicationContext, AnnotationConfigWebApplicationContext, ClassPathXmlApplicationContext, FileSystemXmlApplicationContext, GenericApplicationContext, GenericWebApplicationContext, GenericXmlApplicationContext, ResourceAdapterApplicationContext, StaticApplicationContext, StaticPortletApplicationContext, StaticWebApplicationContext, XmlPortletApplicationContext, XmlWebApplicationContext

public interface ConfigurableApplicationContext
extends ApplicationContext, Lifecycle

SPI interface to be implemented by most if not all application contexts. Provides facilities to configure an application context in addition to the application context client methods in the ApplicationContext interface.

Configuration and lifecycle methods are encapsulated here to avoid making them obvious to ApplicationContext client code. The present methods should only be used by startup and shutdown code.

Since:
03.11.2003
Author:
Juergen Hoeller

Field Summary
static String CONFIG_LOCATION_DELIMITERS
          Any number of these characters are considered delimiters between multiple context config paths in a single String value.
static String CONVERSION_SERVICE_BEAN_NAME
          Name of the ConversionService bean in the factory.
static String LOAD_TIME_WEAVER_BEAN_NAME
          Name of the LoadTimeWeaver bean in the factory.
static String SYSTEM_ENVIRONMENT_BEAN_NAME
          Name of the System environment bean in the factory.
static String SYSTEM_PROPERTIES_BEAN_NAME
          Name of the System properties bean in the factory.
 
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
 
Method Summary
 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 beanFactoryPostProcessor)
          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.
 void close()
          Close this application context, releasing all resources and locks that the implementation might hold.
 ConfigurableListableBeanFactory getBeanFactory()
          Return the internal bean factory of this application context.
 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.
 void refresh()
          Load or refresh the persistent representation of the configuration, which might an XML file, properties file, or relational database schema.
 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.
 void setId(String id)
          Set the unique id of this application context.
 void setParent(ApplicationContext parent)
          Set the parent of this application context.
 
Methods inherited from interface org.springframework.context.ApplicationContext
getAutowireCapableBeanFactory, getDisplayName, getId, getParent, getStartupDate
 
Methods inherited from interface org.springframework.beans.factory.ListableBeanFactory
containsBeanDefinition, findAnnotationOnBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanNamesForType, getBeanNamesForType, getBeansOfType, getBeansOfType, getBeansWithAnnotation, getBeansWithAnnotation
 
Methods inherited from interface org.springframework.beans.factory.HierarchicalBeanFactory
containsLocalBean, getParentBeanFactory
 
Methods inherited from interface org.springframework.beans.factory.BeanFactory
containsBean, getAliases, getBean, getBean, getBean, getBean, getType, isPrototype, isSingleton, isTypeMatch
 
Methods inherited from interface org.springframework.context.MessageSource
getMessage, getMessage, getMessage
 
Methods inherited from interface org.springframework.context.ApplicationEventPublisher
publishEvent
 
Methods inherited from interface org.springframework.core.io.support.ResourcePatternResolver
getResources
 
Methods inherited from interface org.springframework.core.io.ResourceLoader
getClassLoader, getResource
 
Methods inherited from interface org.springframework.context.Lifecycle
isRunning, start, stop
 

Field Detail

CONFIG_LOCATION_DELIMITERS

static final String CONFIG_LOCATION_DELIMITERS
Any number of these characters are considered delimiters between multiple context config paths in a single String value.

See Also:
AbstractRefreshableConfigApplicationContext.setConfigLocation(java.lang.String), ContextLoader.CONFIG_LOCATION_PARAM, FrameworkServlet.setContextConfigLocation(java.lang.String), Constant Field Values

CONVERSION_SERVICE_BEAN_NAME

static final String CONVERSION_SERVICE_BEAN_NAME
Name of the ConversionService bean in the factory. If none is supplied, default conversion rules apply.

See Also:
ConversionService, Constant Field Values

LOAD_TIME_WEAVER_BEAN_NAME

static final String LOAD_TIME_WEAVER_BEAN_NAME
Name of the LoadTimeWeaver bean in the factory. If such a bean is supplied, the context will use a temporary ClassLoader for type matching, in order to allow the LoadTimeWeaver to process all actual bean classes.

See Also:
LoadTimeWeaver, Constant Field Values

SYSTEM_PROPERTIES_BEAN_NAME

static final String SYSTEM_PROPERTIES_BEAN_NAME
Name of the System properties bean in the factory.

See Also:
System.getProperties(), Constant Field Values

SYSTEM_ENVIRONMENT_BEAN_NAME

static final String SYSTEM_ENVIRONMENT_BEAN_NAME
Name of the System environment bean in the factory.

See Also:
System.getenv(), Constant Field Values
Method Detail

setId

void setId(String id)
Set the unique id of this application context.


setParent

void setParent(ApplicationContext parent)
Set the parent of this application context.

Note that the parent shouldn't be changed: It should only be set outside a constructor if it isn't available when an object of this class is created, for example in case of WebApplicationContext setup.

Parameters:
parent - the parent context
See Also:
ConfigurableWebApplicationContext

addBeanFactoryPostProcessor

void addBeanFactoryPostProcessor(BeanFactoryPostProcessor beanFactoryPostProcessor)
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.

Parameters:
beanFactoryPostProcessor - the factory processor to register

addApplicationListener

void addApplicationListener(ApplicationListener listener)
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.

Parameters:
listener - the ApplicationListener to register
See Also:
ContextRefreshedEvent, ContextClosedEvent

refresh

void refresh()
             throws BeansException,
                    IllegalStateException
Load or refresh the persistent representation of the configuration, which might an XML file, properties file, or relational database schema.

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 that method, either all or no singletons at all should be instantiated.

Throws:
BeansException - if the bean factory could not be initialized
IllegalStateException - if already initialized and multiple refresh attempts are not supported

registerShutdownHook

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.

This method can be called multiple times. Only one shutdown hook (at max) will be registered for each context instance.

See Also:
Runtime.addShutdownHook(java.lang.Thread), close()

close

void close()
Close this application context, releasing all resources and locks that the implementation might hold. This includes destroying all cached singleton beans.

Note: Does not invoke close on a parent context; parent contexts have their own, independent lifecycle.

This method can be called multiple times without side effects: Subsequent close calls on an already closed context will be ignored.


isActive

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.

Returns:
whether the context is still active
See Also:
refresh(), close(), getBeanFactory()

getBeanFactory

ConfigurableListableBeanFactory getBeanFactory()
                                               throws IllegalStateException
Return the internal bean factory of this application context. Can be used to access specific functionality of the underlying factory.

Note: Do not use this to post-process the bean factory; singletons will already have been instantiated before. Use a BeanFactoryPostProcessor to intercept the BeanFactory setup process before beans get touched.

Generally, this internal factory will only be accessible while the context is active, that is, inbetween refresh() and close(). The isActive() flag can be used to check whether the context is in an appropriate state.

Returns:
the underlying bean factory
Throws:
IllegalStateException - if the context does not hold an internal bean factory (usually if refresh() hasn't been called yet or if close() has already been called)
See Also:
isActive(), refresh(), close(), addBeanFactoryPostProcessor(org.springframework.beans.factory.config.BeanFactoryPostProcessor)