Bean的生命周期

<bean id="myBean" 
      class="com.example.MyClass" 
      scope="singleton" 
      factory-method="createInstance" 
      factory-bean="myFactoryBean" 
      init-method="init" 
      destroy-method="cleanup" 
      autowire="byType" 
      dependency-check="all" 
      lazy-init="true" 
      primary="true" 
      abstract="false" 
      abstract="true">

    <property name="propertyName" value="propertyValue"/>
    <property name="anotherProperty" ref="anotherBean"/>

    <constructor-arg index="0" value="constructorValue"/>
    <constructor-arg index="1" ref="anotherBean"/>

    <qualifier value="specificBean"/>
    <lookup-method method="getBean" bean="myBean"/>
</bean>

- RootBeanDefinition
   - AbstractBeanDefinition
      - BeanMetadataAttributeAccessor
      - BeanDefinition
         - AttributeAccessor
         - BeanMetadataElement
- AnnotatedGenericBeanDefinition
   - GenericBeanDefinition
      - AbstractBeanDefinition
   - AnnotatedBeanDefinition
      - BeanDefinition
- ChildBeanDefinition
   - AbstractBeanDefinition
- ScannedGenericBeanDefinition
   - GenericBeanDefinition
   - AnnotatedBeanDefinition