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AbstractRefreshableWebApplicationContext (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

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org.springframework.web.context.support
Class AbstractRefreshableWebApplicationContext

java.lang.Object
  org.springframework.core.io.DefaultResourceLoader
      org.springframework.context.support.AbstractApplicationContext
          org.springframework.context.support.AbstractRefreshableApplicationContext
              org.springframework.web.context.support.AbstractRefreshableWebApplicationContext

All Implemented Interfaces:

BeanFactory, DisposableBean, HierarchicalBeanFactory, ListableBeanFactory, ApplicationContext, ApplicationEventPublisher, ConfigurableApplicationContext, MessageSource, ResourceLoader, ResourcePatternResolver, ThemeSource, ConfigurableWebApplicationContext, WebApplicationContext

Direct Known Subclasses:

XmlWebApplicationContext

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public abstract class AbstractRefreshableWebApplicationContext
extends AbstractRefreshableApplicationContext
implements ConfigurableWebApplicationContext

AbstractRefreshableApplicationContext subclass that implements the ConfigurableWebApplicationContext interface for web environments. Pre-implements a "configLocation" property, to be populated through the ConfigurableWebApplicationContext interface on web application startup.

This class is as easy to subclass as AbstractRefreshableApplicationContext: All you need to implements is the loadBeanDefinitions method; see the superclass javadoc for details. Note that implementations are supposed to load bean definitions from the files specified by the locations returned by the getConfigLocations method.

Interprets resource paths as servlet context resources, i.e. as paths beneath the web application root. Absolute paths, e.g. for files outside the web app root, can be accessed via "file:" URLs, as implemented by AbstractApplicationContext.

In addition to the special beans detected by AbstractApplicationContext, this class detects a ThemeSource bean in the context, with the name "themeSource".

This is the web context to be subclassed for a different bean definition format. Such a context implementation can be specified as "contextClass" context-param for ContextLoader or "contextClass" init-param for FrameworkServlet, replacing the default XmlWebApplicationContext. It would automatically receive the "contextConfigLocation" context-param or init-param, respectively.

Note that WebApplicationContext implementations are generally supposed to configure themselves based on the configuration received through the ConfigurableWebApplicationContext interface. In contrast, a standalone application context might allow for configuration in custom startup code (for example, GenericApplicationContext).

Since:

1.1.3

Author:

Juergen Hoeller

See Also:

AbstractRefreshableApplicationContext.loadBeanDefinitions(org.springframework.beans.factory.support.DefaultListableBeanFactory), getConfigLocations(), ConfigurableWebApplicationContext.setConfigLocations(java.lang.String[]), ServletContextResourcePatternResolver, AbstractApplicationContext, ThemeSource, XmlWebApplicationContext, GenericApplicationContext

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Field Summary

 

Fields inherited from class org.springframework.context.support.AbstractApplicationContext
APPLICATION_EVENT_MULTICASTER_BEAN_NAME, logger, MESSAGE_SOURCE_BEAN_NAME

 

Fields inherited from interface org.springframework.web.context.ConfigurableWebApplicationContext
CONFIG_LOCATION_DELIMITERS

 

Fields inherited from interface org.springframework.web.context.WebApplicationContext
ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE

 

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

 

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, CLASSPATH_URL_PREFIX

 

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

 

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, CLASSPATH_URL_PREFIX

 

Constructor Summary
AbstractRefreshableWebApplicationContext()

 

Method Summary
protected  String[]	getConfigLocations()
protected  String[]	getDefaultConfigLocations()           Return the default config locations to use, for the case where no explicit config locations have been specified.
protected  String	getNamespace()
protected  Resource	getResourceByPath(String path)           This implementation supports file paths beneath the root of the ServletContext.
protected  ResourcePatternResolver	getResourcePatternResolver()           This implementation supports pattern matching in unexpanded WARs too.
ServletContext	getServletContext()           Return the standard Servlet API ServletContext for this application.
Theme	getTheme(String themeName)           Return the Theme instance for the given theme name.
protected  void	onRefresh()           Initialize the theme capability.
protected  void	postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)           Register ServletContextAwareProcessor.
void	refresh()           Sets a default config location if no explicit config location specified.
protected  String	resolvePath(String path)           Resolve the given path, replacing placeholders with corresponding system property values if necessary.
void	setConfigLocations(String[] locations)           Set the config locations for this web application context.
void	setNamespace(String namespace)           Set the namespace for this web application context, to be used for building a default context config location.
void	setServletContext(ServletContext servletContext)           Set the ServletContext for this web application context.
String	toString()           Return diagnostic information.

 

Methods inherited from class org.springframework.context.support.AbstractRefreshableApplicationContext
createBeanFactory, getBeanFactory, loadBeanDefinitions, refreshBeanFactory

 

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

addBeanFactoryPostProcessor, addListener, close, containsBean, containsBeanDefinition, containsLocalBean, destroy, getAliases, getBean, getBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanDefinitionNames, getBeanFactoryPostProcessors, getBeanNamesForType, getBeanNamesForType, getBeansOfType, getBeansOfType, getDisplayName, getInternalParentBeanFactory, getInternalParentMessageSource, getMessage, getMessage, getMessage, getParent, getParentBeanFactory, getResources, getStartupDate, getType, isSingleton, publishEvent, setDisplayName, setParent

 

Methods inherited from class org.springframework.core.io.DefaultResourceLoader
getClassLoader, getResource, 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.ApplicationContext
getDisplayName, getParent, getStartupDate, publishEvent

 

Methods inherited from interface org.springframework.beans.factory.ListableBeanFactory
containsBeanDefinition, getBeanDefinitionCount, getBeanDefinitionNames, getBeanDefinitionNames, getBeanNamesForType, getBeanNamesForType, getBeansOfType, getBeansOfType

 

Methods inherited from interface org.springframework.beans.factory.BeanFactory
containsBean, getAliases, getBean, getBean, getType, isSingleton

 

Methods inherited from interface org.springframework.beans.factory.HierarchicalBeanFactory
containsLocalBean, getParentBeanFactory

 

Methods inherited from interface org.springframework.beans.factory.BeanFactory
containsBean, getAliases, getBean, getBean, getType, isSingleton

 

Methods inherited from interface org.springframework.context.MessageSource
getMessage, getMessage, getMessage

 

Methods inherited from interface org.springframework.core.io.support.ResourcePatternResolver
getResources

 

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

 

Methods inherited from interface org.springframework.context.ConfigurableApplicationContext
addBeanFactoryPostProcessor, close, getBeanFactory, setParent

 

Methods inherited from interface org.springframework.context.ApplicationContext
getDisplayName, getParent, getStartupDate, publishEvent

 

Methods inherited from interface org.springframework.beans.factory.ListableBeanFactory
containsBeanDefinition, getBeanDefinitionCount, getBeanDefinitionNames, getBeanDefinitionNames, getBeanNamesForType, getBeanNamesForType, getBeansOfType, getBeansOfType

 

Methods inherited from interface org.springframework.beans.factory.BeanFactory
containsBean, getAliases, getBean, getBean, getType, isSingleton

 

Methods inherited from interface org.springframework.beans.factory.HierarchicalBeanFactory
containsLocalBean, getParentBeanFactory

 

Methods inherited from interface org.springframework.beans.factory.BeanFactory
containsBean, getAliases, getBean, getBean, getType, isSingleton

 

Methods inherited from interface org.springframework.context.MessageSource
getMessage, getMessage, getMessage

 

Methods inherited from interface org.springframework.core.io.support.ResourcePatternResolver
getResources

 

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

 

Constructor Detail

AbstractRefreshableWebApplicationContext

public AbstractRefreshableWebApplicationContext()

Method Detail

setServletContext

public void setServletContext(ServletContext servletContext)

Description copied from interface: ConfigurableWebApplicationContext

Set the ServletContext for this web application context.

Does not cause an initialization of the context: refresh needs to be called after the setting of all configuration properties.

Specified by:

setServletContext in interface ConfigurableWebApplicationContext

See Also:

ConfigurableApplicationContext.refresh()

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getServletContext

public ServletContext getServletContext()

Description copied from interface: WebApplicationContext

Return the standard Servlet API ServletContext for this application.

Specified by:

getServletContext in interface WebApplicationContext

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setNamespace

public void setNamespace(String namespace)

Description copied from interface: ConfigurableWebApplicationContext

Set the namespace for this web application context, to be used for building a default context config location. The root web application context does not have a namespace.

Specified by:

setNamespace in interface ConfigurableWebApplicationContext

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getNamespace

protected String getNamespace()

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setConfigLocations

public void setConfigLocations(String[] locations)

Description copied from interface: ConfigurableWebApplicationContext

Set the config locations for this web application context. If not set, the implementation is supposed to use a default for the given namespace or the root web application context, as appropriate.

Specified by:

setConfigLocations in interface ConfigurableWebApplicationContext

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getConfigLocations

protected String[] getConfigLocations()

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refresh

public void refresh()
             throws BeansException

Sets a default config location if no explicit config location specified.

Specified by:

refresh in interface ConfigurableApplicationContext

Overrides:

refresh in class AbstractApplicationContext

Throws:

BeansException - if the bean factory could not be initialized

See Also:

getDefaultConfigLocations(), setConfigLocations(java.lang.String[])

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getDefaultConfigLocations

protected String[] getDefaultConfigLocations()

Return the default config locations to use, for the case where no explicit config locations have been specified.

Default implementation returns null, requiring explicit config locations.

See Also:

setConfigLocations(java.lang.String[])

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postProcessBeanFactory

protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)

Register ServletContextAwareProcessor.

Overrides:

postProcessBeanFactory in class AbstractApplicationContext

Parameters:

beanFactory - the bean factory used by the application context

See Also:

ServletContextAwareProcessor

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resolvePath

protected String resolvePath(String path)

Resolve the given path, replacing placeholders with corresponding system property values if necessary. Applied to config locations.

Parameters:

path - the original file path

Returns:

the resolved file path

See Also:

SystemPropertyUtils.resolvePlaceholders(java.lang.String)

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getResourceByPath

protected Resource getResourceByPath(String path)

This implementation supports file paths beneath the root of the ServletContext.

Overrides:

getResourceByPath in class DefaultResourceLoader

Parameters:

path - path to the resource

Returns:

Resource handle

See Also:

ServletContextResource

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getResourcePatternResolver

protected ResourcePatternResolver getResourcePatternResolver()

This implementation supports pattern matching in unexpanded WARs too.

Overrides:

getResourcePatternResolver in class AbstractApplicationContext

See Also:

ServletContextResourcePatternResolver

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onRefresh

protected void onRefresh()

Initialize the theme capability.

Overrides:

onRefresh in class AbstractApplicationContext

See Also:

AbstractApplicationContext.refresh()

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getTheme

public Theme getTheme(String themeName)

Description copied from interface: ThemeSource

Return the Theme instance for the given theme name. The returned Theme will resolve theme-specific messages, codes, file paths, etc (e.g. CSS and image files in a web environment).

Specified by:

getTheme in interface ThemeSource

Parameters:

themeName - name of the theme

Returns:

the respective Theme, or null if none defined

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toString

public String toString()

Return diagnostic information.

Overrides:

toString in class AbstractApplicationContext

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