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

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org.springframework.context.support
Class AbstractXmlApplicationContext

java.lang.Object
  extended by org.springframework.core.io.DefaultResourceLoader
      extended by org.springframework.context.support.AbstractApplicationContext
          extended by org.springframework.context.support.AbstractRefreshableApplicationContext
              extended by org.springframework.context.support.AbstractXmlApplicationContext
All Implemented Interfaces:
BeanFactory, DisposableBean, HierarchicalBeanFactory, ListableBeanFactory, ApplicationContext, ApplicationEventPublisher, ConfigurableApplicationContext, MessageSource, ResourceLoader, ResourcePatternResolver
Direct Known Subclasses:
ClassPathXmlApplicationContext, FileSystemXmlApplicationContext
public abstract class AbstractXmlApplicationContext
extends AbstractRefreshableApplicationContext

Convenient abstract superclass for ApplicationContext implementations, drawing configuration from XML documents containing bean definitions understood by an XmlBeanDefinitionReader.

Subclasses just have to implement the getConfigLocations method. Furthermore, they might override the getResourceByPath hook to interpret relative paths in an environment-specific fashion, and/or getResourcePatternResolver for extended pattern resolution.

Author:
Rod Johnson, Juergen Hoeller
See Also:
getConfigLocations(), DefaultResourceLoader.getResourceByPath(java.lang.String), AbstractApplicationContext.getResourcePatternResolver(), XmlBeanDefinitionReader

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.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
AbstractXmlApplicationContext()
          Create a new AbstractXmlApplicationContext with no parent.
AbstractXmlApplicationContext(ApplicationContext parent)
          Create a new AbstractXmlApplicationContext with the given parent context.
 
Method Summary
protected abstract  String[] getConfigLocations()
          Return an array of resource locations, referring to the XML bean definition files that this context should be built with.
protected  void initBeanDefinitionReader(XmlBeanDefinitionReader beanDefinitionReader)
          Initialize the bean definition reader used for loading the bean definitions of this context.
protected  void loadBeanDefinitions(DefaultListableBeanFactory beanFactory)
          Loads the bean definitions via an XmlBeanDefinitionReader.
protected  void loadBeanDefinitions(XmlBeanDefinitionReader reader)
          Load the bean definitions with the given XmlBeanDefinitionReader.
 
Methods inherited from class org.springframework.context.support.AbstractRefreshableApplicationContext
createBeanFactory, getBeanFactory, 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, getResourcePatternResolver, getResources, getStartupDate, getType, isSingleton, onRefresh, postProcessBeanFactory, publishEvent, refresh, setDisplayName, setParent, toString
 
Methods inherited from class org.springframework.core.io.DefaultResourceLoader
getClassLoader, 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.core.io.ResourceLoader
getResource
 

Constructor Detail

AbstractXmlApplicationContext

public AbstractXmlApplicationContext()
Create a new AbstractXmlApplicationContext with no parent.

AbstractXmlApplicationContext

public AbstractXmlApplicationContext(ApplicationContext parent)
Create a new AbstractXmlApplicationContext with the given parent context.

Parameters:
parent - the parent context
Method Detail

loadBeanDefinitions

protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory)
                            throws IOException
Loads the bean definitions via an XmlBeanDefinitionReader.

Specified by:
loadBeanDefinitions in class AbstractRefreshableApplicationContext
Parameters:
beanFactory - the bean factory to load bean definitions into
Throws:
IOException - if loading of bean definition files failed
See Also:
XmlBeanDefinitionReader, initBeanDefinitionReader(org.springframework.beans.factory.xml.XmlBeanDefinitionReader), loadBeanDefinitions(org.springframework.beans.factory.support.DefaultListableBeanFactory)

initBeanDefinitionReader

protected void initBeanDefinitionReader(XmlBeanDefinitionReader beanDefinitionReader)
Initialize the bean definition reader used for loading the bean definitions of this context. Default implementation is empty.

Can be overridden in subclasses, e.g. for turning off XML validation or using a different XmlBeanDefinitionParser implementation.

Parameters:
beanDefinitionReader - the bean definition reader used by this context
See Also:
XmlBeanDefinitionReader.setValidating(boolean), XmlBeanDefinitionReader.setParserClass(java.lang.Class)

loadBeanDefinitions

protected void loadBeanDefinitions(XmlBeanDefinitionReader reader)
                            throws BeansException,
                                   IOException
Load the bean definitions with the given XmlBeanDefinitionReader.

The lifecycle of the bean factory is handled by the refreshBeanFactory method; therefore this method is just supposed to load and/or register bean definitions.

Delegates to a ResourcePatternResolver for resolving location patterns into Resource instances.

Throws:
BeansException - in case of bean registration errors
IOException - if the required XML document isn't found
See Also:
AbstractRefreshableApplicationContext.refreshBeanFactory(), getConfigLocations(), AbstractApplicationContext.getResources(java.lang.String), AbstractApplicationContext.getResourcePatternResolver()

getConfigLocations

protected abstract String[] getConfigLocations()
Return an array of resource locations, referring to the XML bean definition files that this context should be built with.

Can also include location patterns, which will get resolved via a ResourcePatternResolver.

Returns:
an array of resource locations, or null if none
See Also:
AbstractApplicationContext.getResources(java.lang.String), AbstractApplicationContext.getResourcePatternResolver()
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