Spring源码-AbstractXmlApplicationContext-源码解读

public abstract class AbstractXmlApplicationContext extends AbstractRefreshableConfigApplicationContext {

	private boolean validating = true;


	
	public AbstractXmlApplicationContext() {
	}

	
	public AbstractXmlApplicationContext(@Nullable ApplicationContext parent) {
		super(parent);
	}


	
	public void setValidating(boolean validating) {
		this.validating = validating;
	}


	
	@Override
	protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) throws BeansException, IOException {
		// Create a new XmlBeanDefinitionReader for the given BeanFactory.
		XmlBeanDefinitionReader beanDefinitionReader = new XmlBeanDefinitionReader(beanFactory);

		// Configure the bean definition reader with this context's
		// resource loading environment.
		beanDefinitionReader.setEnvironment(this.getEnvironment());
		beanDefinitionReader.setResourceLoader(this);
		beanDefinitionReader.setEntityResolver(new ResourceEntityResolver(this));

		// Allow a subclass to provide custom initialization of the reader,
		// then proceed with actually loading the bean definitions.
		initBeanDefinitionReader(beanDefinitionReader);
		loadBeanDefinitions(beanDefinitionReader);
	}

	
	protected void initBeanDefinitionReader(XmlBeanDefinitionReader reader) {
		reader.setValidating(this.validating);
	}

	
	protected void loadBeanDefinitions(XmlBeanDefinitionReader reader) throws BeansException, IOException {
		Resource[] configResources = getConfigResources();
		if (configResources != null) {
			reader.loadBeanDefinitions(configResources);
		}
		String[] configLocations = getConfigLocations();
		if (configLocations != null) {
			reader.loadBeanDefinitions(configLocations);
		}
	}

	
	@Nullable
	protected Resource[] getConfigResources() {
		return null;
	}

}