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:

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

Direct Known Subclasses:

XmlWebApplicationContext

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:

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

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.core.io.support.ResourcePatternResolver

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) Resolve file paths beneath the root of the web application.
protected ResourcePatternResolver	getResourcePatternResolver() Use a ServletContextResourcePatternResolver, to be able to find matching resources below the web application root directory even in a WAR file which has not been expanded.
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.
void	setConfigLocations(String[] configLocations) 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, getAliases, getBean, getBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanDefinitionNames, getBeanFactoryPostProcessors, 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

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, 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

getParentBeanFactory

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

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()

getServletContext

public ServletContext getServletContext()

Description copied from interface: WebApplicationContext

Return the standard Servlet API ServletContext for this application.

Specified by:

getServletContext in interface WebApplicationContext

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

getNamespace

protected String getNamespace()

setConfigLocations

public void setConfigLocations(String[] configLocations)

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 respectively the root web application context.

Specified by:

setConfigLocations in interface ConfigurableWebApplicationContext

getConfigLocations

protected String[] getConfigLocations()

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

See Also:

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

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[])

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

getResourceByPath

protected Resource getResourceByPath(String path)

Resolve file paths beneath the root of the web application.

Note: Even if a given path starts with a slash, it will get interpreted as relative to the web application root directory (which is the way most servlet containers handle such paths).

Overrides:

getResourceByPath in class DefaultResourceLoader

Parameters:

path - path to the resource

Returns:

Resource handle

See Also:

ServletContextResource

getResourcePatternResolver

protected ResourcePatternResolver getResourcePatternResolver()

Use a ServletContextResourcePatternResolver, to be able to find matching resources below the web application root directory even in a WAR file which has not been expanded.

Overrides:

getResourcePatternResolver in class AbstractApplicationContext

See Also:

ServletContextResourcePatternResolver

onRefresh

protected void onRefresh()

Initialize the theme capability.

Overrides:

onRefresh in class AbstractApplicationContext

See Also:

AbstractApplicationContext.refresh()

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

toString

public String toString()

Return diagnostic information.

Overrides:

toString in class AbstractApplicationContext