Spring源码分析-IOC之AutowireCapableBeanFactory

AutowireCapableBeanFactory继承自BeanFactory,具有BeanFactory的功能以外,提供创建bean,自动注入,初始化以及应用bean的后置处理,我们来分析下具体的源码:
 

[code]public interface AutowireCapableBeanFactory extends BeanFactory {

/**
* Constant that indicates no externally defined autowiring. Note that
* BeanFactoryAware etc and annotation-driven injection will still be applied.
* @see #createBean
* @see #autowire
* @see #autowireBeanProperties
*/
//表明没有自动装配的bean
int AUTOWIRE_NO = 0;

//根据名称自动装配bean
int AUTOWIRE_BY_NAME = 1;

//根据类型自动装配bean
int AUTOWIRE_BY_TYPE = 2;

//根据构造器自动装配bean
int AUTOWIRE_CONSTRUCTOR = 3;

//通过class的内部来自动装配bean
//已经被启用
@Deprecated
int AUTOWIRE_AUTODETECT = 4;

//-------------------------------------------------------------------------
// Typical methods for creating and populating external bean instances
//-------------------------------------------------------------------------

//根据给定的class创建bean
<T> T createBean(Class<T> beanClass) throws BeansException;

//通过调用给定Bean的after-instantiation及post-processing接口，对bean进行配置。
void autowireBean(Object existingBean) throws BeansException;

// 配置参数中指定的bean，包括自动装配其域，对其应用如setBeanName功能的回调函数。
Object configureBean(Object existingBean, String beanName) throws BeansException;

//解析出在Factory中与指定Bean有指定依赖关系的Bean
Object resolveDependency(DependencyDescriptor descriptor, String beanName) throws BeansException;

//　创建一个指定class的实例，通过参数可以指定其自动装配模式（by-name or by-type）.
Object createBean(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException;

//通过指定的自动装配策略来初始化一个Bean。
Object autowire(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException;

//　通过指定的自动装配方式来对给定的Bean进行自动装配
void autowireBeanProperties(Object existingBean, int autowireMode, boolean dependencyCheck)
throws BeansException;

//将参数中指定了那么的Bean，注入给定实例当中
void applyBeanPropertyValues(Object existingBean, String beanName) throws BeansException;

//初始化参数中指定的Bean，调用任何其注册的回调函数如setBeanName、setBeanFactory等。
Object initializeBean(Object existingBean, String beanName) throws BeansException;

//调用参数中指定Bean的postProcessBeforeInitialization方法
Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName)
throws BeansException;

//　调用参数中指定Bean的postProcessAfterInitialization方法
Object applyBeanPostProcessorsAfterInitialization(Object existingBean, String beanName)
throws BeansException;

//销毁参数中指定的Bean
void destroyBean(Object existingBean);

//解析指定Bean在Factory中的依赖关系
Object resolveDependency(DependencyDescriptor descriptor, String beanName,
Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException;

}

对于想要拥有自动装配能力，并且想要把这种能力暴露给外部应用BeanFactory类需要实现此接口。