Spring源码解析之BeanDefinition
BeanDefinition接口继承了接口AttributeAccessor，BeanMetadataElement。
接口AttributeAccessor：
String[] attributeNames() Return the names of all attributes. |
Object getAttribute(String name) Get the value of the attribute identified by name. |
boolean hasAttribute(String name) Return true if the attribute identified by name exists. |
Object removeAttribute(String name) Remove the attribute identified by name and return its value. |
void setAttribute(String name, Object value) Set the attribute defined by name to the supplied value. |
接口BeanDefinition：
BeanDefinition描述了一个bean实例，它具有属性值，构造函数参数值以及具体实现提供的更多信息。这只是一个最小的接口：主要目的是允许BeanFactoryPostProcessor（如PropertyPlaceholderConfigurer）内省和修改属性值和其他bean元数据。
String getBeanClassName() Return the current bean class name of this bean definition. |
ConstructorArgumentValues getConstructorArgumentValues() Return the constructor argument values for this bean. |
String[] getDependsOn() Return the bean names that this bean depends on. |
String getDescription() Return a human-readable description of this bean definition. |
String getFactoryBeanName() Return the factory bean name, if any. |
String getFactoryMethodName() Return a factory method, if any. |
BeanDefinition getOriginatingBeanDefinition() Return the originating BeanDefinition, or null if none. |
String getParentName() Return the name of the parent definition of this bean definition, if any. |
MutablePropertyValues getPropertyValues() Return the property values to be applied to a new instance of the bean. |
String getResourceDescription() Return a description of the resource that this bean definition came from (for the purpose of showing context in case of errors). |
int getRole() Get the role hint for this BeanDefinition. |
String getScope() Return the name of the current target scope for this bean, or null if not known yet. |
boolean isAbstract() Return whether this bean is "abstract", that is, not meant to be instantiated. |
boolean isAutowireCandidate() Return whether this bean is a candidate for getting autowired into some other bean. |
boolean isLazyInit() Return whether this bean should be lazily initialized, i.e. |
boolean isPrimary() Return whether this bean is a primary autowire candidate. |
boolean isPrototype() Return whether this a Prototype, with an independent instance returned for each call. |
boolean isSingleton() Return whether this a Singleton, with a single, shared instance returned on all calls. |
void setAutowireCandidate(boolean autowireCandidate) Set whether this bean is a candidate for getting autowired into some other bean. |
void setBeanClassName(String beanClassName) Override the bean class name of this bean definition. |
void setDependsOn(String[] dependsOn) Set the names of the beans that this bean depends on being initialized. |
void setFactoryBeanName(String factoryBeanName) Specify the factory bean to use, if any. |
void setFactoryMethodName(String factoryMethodName) Specify a factory method, if any. |
void setLazyInit(boolean lazyInit) Set whether this bean should be lazily initialized. |
void setParentName(String parentName) Set the name of the parent definition of this bean definition, if any. |
void setPrimary(boolean primary) Set whether this bean is a primary autowire candidate. |
void setScope(String scope) Override the target scope of this bean, specifying a new scope name. |
