一般应用开发者不会使用这个接口,所以像ApplicationContext这样的外观实现类不会实现这个接口,如果真手痒痒可以通过ApplicationContext的getAutowireCapableBeanFactory接口获取.
这边定义了5种自动装配策略:不注入AUTOWIRE_NO,使用bean name策略装配AUTOWIRE_BY_NAME,使用类型装配策略AUTOWIRE_BY_TYPE,使用构造器装配策略AUTOWIRE_CONSTRUCTOR,自动装配策略AUTOWIRE_AUTODETECT
这边的自动策略是先尝试构造器,然后才是byType.这边应该是跟xml配置文件中的装配策略对应.
继续看定义的api:
a, 创建和填充外部bean实例的典型方法
<T> T createBean(Class<T> beanClass) throws BeansException;
void autowireBean(Object existingBean) throws BeansException; // 使用autowireBeanProperties装配属性
Object configureBean(Object existingBean, String beanName) throws BeansException; // 自动装配属性,填充属性值,使用诸如setBeanName,setBeanFactory这样的工厂回调填充属性,最好还要调用post processor
Object resolveDependency(DependencyDescriptor descriptor, String beanName) throws BeansException;
b, 在bean的生命周期进行细粒度控制的专门方法
Object createBean(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException; // 会执行bean完整的初始化,包括BeanPostProcessors和initializeBean
Object autowire(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException;
void autowireBeanProperties(Object existingBean, int autowireMode, boolean dependencyCheck) throws BeansException;
void applyBeanPropertyValues(Object existingBean, String beanName) throws BeansException;
Object initializeBean(Object existingBean, String beanName) throws BeansException;
Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName) throws BeansException;
Object applyBeanPostProcessorsAfterInitialization(Object existingBean, String beanName) throws BeansException;
Object resolveDependency(DependencyDescriptor descriptor, String beanName, Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException;
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基于 Spring 设计并实现 RESTful Web Services
Spring-3.2.4 + Quartz-2.2.0集成实例
Spring 3.x 企业应用开发实战 PDF完整高清扫描版+源代码
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3. HierarchicalBeanFactory
提供父容器的访问功能.至于父容器的设置,需要找ConfigurableBeanFactory的setParentBeanFactory(接口把设置跟获取给拆开了!).
这边可说的不多,直接上api:
a, 获取父容器 bean factory
BeanFactory getParentBeanFactory();
b, 判断当前容器是否保护bean
boolean containsLocalBean(String name);