BeanFactory是訪問bean容器的根接口，它是一個bean容器的基本客戶端視圖。

先讓我們看看beanfactory的前生后世吧！

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beanFactory有四個重要的子接口：

　SimpleJndiBeanFactory是spring beanFactory接口的基于jndi的簡單實現(xiàn)。不支持枚舉bean定義，故不需要實現(xiàn)ListableBeanFactory接口。這個bean工廠可以解析制定名稱的jndi名稱，在J2EE應用中，jndi名稱的命名空間為"java:/comp/env/".

這個bean工廠主要和spring的CommonAnnotationBeanPostProcessor 聯(lián)合使用。

The main intent of this factory is usage in combination with Spring's CommonAnnotationBeanPostProcessor, configured as "resourceFactory" for resolving @Resource annotations as JNDI objects without intermediate bean definitions. It may be used for similar lookup scenarios as well, of course, in particular if BeanFactory-style type checking is required. ListableBeanFactory是beanFactory接口的擴展接口，它可以枚舉所有的bean實例，而不是客戶端通過名稱一個一個的查詢得出所有的實例。要預加載所有的bean定義的beanfactory可以實現(xiàn)這個接口來。該 接口定義了訪問容器中Bean基本信息的若干方法，如查看Bean的個數(shù)、獲取某一類型Bean的配置名、查看容器中是否包括某一Bean等方法；
/*** Check if this bean factory contains a bean definition with the given name.* <p>Does not consider any hierarchy this factory may participate in,* and ignores any singleton beans that have been registered by* other means than bean definitions.* @param beanName the name of the bean to look for* @return if this bean factory contains a bean definition with the given name* @see #containsBean*/boolean containsBeanDefinition(String beanName);/*** Return the number of beans defined in the factory.* <p>Does not consider any hierarchy this factory may participate in,* and ignores any singleton beans that have been registered by* other means than bean definitions.* @return the number of beans defined in the factory*/int getBeanDefinitionCount();/*** Return the names of all beans defined in this factory.* <p>Does not consider any hierarchy this factory may participate in,* and ignores any singleton beans that have been registered by* other means than bean definitions.* @return the names of all beans defined in this factory,* or an empty array if none defined*/String[] getBeanDefinitionNames();/*** Return the names of beans matching the given type (including subclasses),* judging from either bean definitions or the value of {@code getObjectType}* in the case of FactoryBeans.* <p><b>NOTE: This method introspects top-level beans only.</b> It does <i>not</i>* check nested beans which might match the specified type as well.* <p>Does consider objects created by FactoryBeans, which means that FactoryBeans* will get initialized. If the object created by the FactoryBean doesn't match,* the raw FactoryBean itself will be matched against the type.* <p>Does not consider any hierarchy this factory may participate in.* Use BeanFactoryUtils' {@code beanNamesForTypeIncludingAncestors}* to include beans in ancestor factories too.* <p>Note: Does <i>not</i> ignore singleton beans that have been registered* by other means than bean definitions.* <p>This version of {@code getBeanNamesForType} matches all kinds of beans,* be it singletons, prototypes, or FactoryBeans. In most implementations, the* result will be the same as for {@code getBeanNamesOfType(type, true, true)}.* <p>Bean names returned by this method should always return bean names <i>in the* order of definition</i> in the backend configuration, as far as possible.* @param type the class or interface to match, or {@code null} for all bean names* @return the names of beans (or objects created by FactoryBeans) matching* the given object type (including subclasses), or an empty array if none* @see FactoryBean#getObjectType* @see BeanFactoryUtils#beanNamesForTypeIncludingAncestors(ListableBeanFactory, Class)*/String[] getBeanNamesForType(Class<?> type);/*** Return the names of beans matching the given type (including subclasses),* judging from either bean definitions or the value of {@code getObjectType}* in the case of FactoryBeans.* <p><b>NOTE: This method introspects top-level beans only.</b> It does <i>not</i>* check nested beans which might match the specified type as well.* <p>Does consider objects created by FactoryBeans if the "allowEagerInit" flag is set,* which means that FactoryBeans will get initialized. If the object created by the* FactoryBean doesn't match, the raw FactoryBean itself will be matched against the* type. If "allowEagerInit" is not set, only raw FactoryBeans will be checked* (which doesn't require initialization of each FactoryBean).* <p>Does not consider any hierarchy this factory may participate in.* Use BeanFactoryUtils' {@code beanNamesForTypeIncludingAncestors}* to include beans in ancestor factories too.* <p>Note: Does <i>not</i> ignore singleton beans that have been registered* by other means than bean definitions.* <p>Bean names returned by this method should always return bean names <i>in the* order of definition</i> in the backend configuration, as far as possible.* @param type the class or interface to match, or {@code null} for all bean names* @param includeNonSingletons whether to include prototype or scoped beans too* or just singletons (also applies to FactoryBeans)* @param allowEagerInit whether to initialize <i>lazy-init singletons</i> and* <i>objects created by FactoryBeans</i> (or by factory methods with a* "factory-bean" reference) for the type check. Note that FactoryBeans need to be* eagerly initialized to determine their type: So be aware that passing in "true"* for this flag will initialize FactoryBeans and "factory-bean" references.* @return the names of beans (or objects created by FactoryBeans) matching* the given object type (including subclasses), or an empty array if none* @see FactoryBean#getObjectType* @see BeanFactoryUtils#beanNamesForTypeIncludingAncestors(ListableBeanFactory, Class, boolean, boolean)*/String[] getBeanNamesForType(Class<?> type, boolean includeNonSingletons, boolean allowEagerInit);/*** Return the bean instances that match the given object type (including* subclasses), judging from either bean definitions or the value of* {@code getObjectType} in the case of FactoryBeans.* <p><b>NOTE: This method introspects top-level beans only.</b> It does <i>not</i>* check nested beans which might match the specified type as well.* <p>Does consider objects created by FactoryBeans, which means that FactoryBeans* will get initialized. If the object created by the FactoryBean doesn't match,* the raw FactoryBean itself will be matched against the type.* <p>Does not consider any hierarchy this factory may participate in.* Use BeanFactoryUtils' {@code beansOfTypeIncludingAncestors}* to include beans in ancestor factories too.* <p>Note: Does <i>not</i> ignore singleton beans that have been registered* by other means than bean definitions.* <p>This version of getBeansOfType matches all kinds of beans, be it* singletons, prototypes, or FactoryBeans. In most implementations, the* result will be the same as for {@code getBeansOfType(type, true, true)}.* <p>The Map returned by this method should always return bean names and* corresponding bean instances <i>in the order of definition</i> in the* backend configuration, as far as possible.* @param type the class or interface to match, or {@code null} for all concrete beans* @return a Map with the matching beans, containing the bean names as* keys and the corresponding bean instances as values* @throws BeansException if a bean could not be created* @since 1.1.2* @see FactoryBean#getObjectType* @see BeanFactoryUtils#beansOfTypeIncludingAncestors(ListableBeanFactory, Class)*/<T> Map<String, T> getBeansOfType(Class<T> type) throws BeansException;/*** Return the bean instances that match the given object type (including* subclasses), judging from either bean definitions or the value of* {@code getObjectType} in the case of FactoryBeans.* <p><b>NOTE: This method introspects top-level beans only.</b> It does <i>not</i>* check nested beans which might match the specified type as well.* <p>Does consider objects created by FactoryBeans if the "allowEagerInit" flag is set,* which means that FactoryBeans will get initialized. If the object created by the* FactoryBean doesn't match, the raw FactoryBean itself will be matched against the* type. If "allowEagerInit" is not set, only raw FactoryBeans will be checked* (which doesn't require initialization of each FactoryBean).* <p>Does not consider any hierarchy this factory may participate in.* Use BeanFactoryUtils' {@code beansOfTypeIncludingAncestors}* to include beans in ancestor factories too.* <p>Note: Does <i>not</i> ignore singleton beans that have been registered* by other means than bean definitions.* <p>The Map returned by this method should always return bean names and* corresponding bean instances <i>in the order of definition</i> in the* backend configuration, as far as possible.* @param type the class or interface to match, or {@code null} for all concrete beans* @param includeNonSingletons whether to include prototype or scoped beans too* or just singletons (also applies to FactoryBeans)* @param allowEagerInit whether to initialize <i>lazy-init singletons</i> and* <i>objects created by FactoryBeans</i> (or by factory methods with a* "factory-bean" reference) for the type check. Note that FactoryBeans need to be* eagerly initialized to determine their type: So be aware that passing in "true"* for this flag will initialize FactoryBeans and "factory-bean" references.* @return a Map with the matching beans, containing the bean names as* keys and the corresponding bean instances as values* @throws BeansException if a bean could not be created* @see FactoryBean#getObjectType* @see BeanFactoryUtils#beansOfTypeIncludingAncestors(ListableBeanFactory, Class, boolean, boolean)*/<T> Map<String, T> getBeansOfType(Class<T> type, boolean includeNonSingletons, boolean allowEagerInit)throws BeansException;/*** Find all names of beans whose {@code Class} has the supplied {@link Annotation}* type, without creating any bean instances yet.* @param annotationType the type of annotation to look for* @return the names of all matching beans* @since 4.0*/String[] getBeanNamesForAnnotation(Class<? extends Annotation> annotationType);/*** Find all beans whose {@code Class} has the supplied {@link Annotation} type,* returning a Map of bean names with corresponding bean instances.* @param annotationType the type of annotation to look for* @return a Map with the matching beans, containing the bean names as* keys and the corresponding bean instances as values* @throws BeansException if a bean could not be created* @since 3.0*/Map<String, Object> getBeansWithAnnotation(Class<? extends Annotation> annotationType) throws BeansException;/*** Find an {@link Annotation} of {@code annotationType} on the specified* bean, traversing its interfaces and super classes if no annotation can be* found on the given class itself.* @param beanName the name of the bean to look for annotations on* @param annotationType the annotation class to look for* @return the annotation of the given type if found, or {@code null}* @throws NoSuchBeanDefinitionException if there is no bean with the given name* @since 3.0*/<A extends Annotation> A findAnnotationOnBean(String beanName, Class<A> annotationType)throws NoSuchBeanDefinitionException; HierarchicalBeanFactory 是一個bean factory 子接口實現(xiàn)，可以作為層次結構的一部分。相對應的bean Factory方法setParentBeanFactory允許在一個可配置beanfactory中設置它們的父bean factory。
/*** Return the parent bean factory, or {@code null} if there is none.*/BeanFactory getParentBeanFactory();/*** Return whether the local bean factory contains a bean of the given name,* ignoring beans defined in ancestor contexts.* <p>This is an alternative to {@code containsBean}, ignoring a bean* of the given name from an ancestor bean factory.* @param name the name of the bean to query* @return whether a bean with the given name is defined in the local factory* @see BeanFactory#containsBean*/boolean containsLocalBean(String name); AutowireCapableBeanFactory：beanFactory接口的擴展實現(xiàn)，假如它們想要對已經存在的bean暴露它的功能，實現(xiàn)它就能實現(xiàn)自動裝配功能。 定義了將容器中的Bean按某種規(guī)則（如按名字匹配、按類型匹配等）進行自動裝配的方法；
/*** 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*/int AUTOWIRE_NO = 0;/*** Constant that indicates autowiring bean properties by name* (applying to all bean property setters).* @see #createBean* @see #autowire* @see #autowireBeanProperties*/int AUTOWIRE_BY_NAME = 1;/*** Constant that indicates autowiring bean properties by type* (applying to all bean property setters).* @see #createBean* @see #autowire* @see #autowireBeanProperties*/int AUTOWIRE_BY_TYPE = 2;/*** Constant that indicates autowiring the greediest constructor that* can be satisfied (involves resolving the appropriate constructor).* @see #createBean* @see #autowire*/int AUTOWIRE_CONSTRUCTOR = 3;/*** Constant that indicates determining an appropriate autowire strategy* through introspection of the bean class.* @see #createBean* @see #autowire* @deprecated as of Spring 3.0: If you are using mixed autowiring strategies,* prefer annotation-based autowiring for clearer demarcation of autowiring needs.*/@Deprecatedint AUTOWIRE_AUTODETECT = 4;//-------------------------------------------------------------------------// Typical methods for creating and populating external bean instances//-------------------------------------------------------------------------/*** Fully create a new bean instance of the given class.* <p>Performs full initialization of the bean, including all applicable* {@link BeanPostProcessor BeanPostProcessors}.* <p>Note: This is intended for creating a fresh instance, populating annotated* fields and methods as well as applying all standard bean initialiation callbacks.* It does <i>not</> imply traditional by-name or by-type autowiring of properties;* use {@link #createBean(Class, int, boolean)} for that purposes.* @param beanClass the class of the bean to create* @return the new bean instance* @throws BeansException if instantiation or wiring failed*/<T> T createBean(Class<T> beanClass) throws BeansException;/*** Populate the given bean instance through applying after-instantiation callbacks* and bean property post-processing (e.g. for annotation-driven injection).* <p>Note: This is essentially intended for (re-)populating annotated fields and* methods, either for new instances or for deserialized instances. It does* <i>not</i> imply traditional by-name or by-type autowiring of properties;* use {@link #autowireBeanProperties} for that purposes.* @param existingBean the existing bean instance* @throws BeansException if wiring failed*/void autowireBean(Object existingBean) throws BeansException;/*** Configure the given raw bean: autowiring bean properties, applying* bean property values, applying factory callbacks such as {@code setBeanName}* and {@code setBeanFactory}, and also applying all bean post processors* (including ones which might wrap the given raw bean).* <p>This is effectively a superset of what {@link #initializeBean} provides,* fully applying the configuration specified by the corresponding bean definition.* <b>Note: This method requires a bean definition for the given name!</b>* @param existingBean the existing bean instance* @param beanName the name of the bean, to be passed to it if necessary* (a bean definition of that name has to be available)* @return the bean instance to use, either the original or a wrapped one* @throws org.springframework.beans.factory.NoSuchBeanDefinitionException* if there is no bean definition with the given name* @throws BeansException if the initialization failed* @see #initializeBean*/Object configureBean(Object existingBean, String beanName) throws BeansException;/*** Resolve the specified dependency against the beans defined in this factory.* @param descriptor the descriptor for the dependency* @param beanName the name of the bean which declares the present dependency* @return the resolved object, or {@code null} if none found* @throws BeansException in dependency resolution failed*/Object resolveDependency(DependencyDescriptor descriptor, String beanName) throws BeansException;//-------------------------------------------------------------------------// Specialized methods for fine-grained control over the bean lifecycle//-------------------------------------------------------------------------/*** Fully create a new bean instance of the given class with the specified* autowire strategy. All constants defined in this interface are supported here.* <p>Performs full initialization of the bean, including all applicable* {@link BeanPostProcessor BeanPostProcessors}. This is effectively a superset* of what {@link #autowire} provides, adding {@link #initializeBean} behavior.* @param beanClass the class of the bean to create* @param autowireMode by name or type, using the constants in this interface* @param dependencyCheck whether to perform a dependency check for objects* (not applicable to autowiring a constructor, thus ignored there)* @return the new bean instance* @throws BeansException if instantiation or wiring failed* @see #AUTOWIRE_NO* @see #AUTOWIRE_BY_NAME* @see #AUTOWIRE_BY_TYPE* @see #AUTOWIRE_CONSTRUCTOR*/Object createBean(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException;/*** Instantiate a new bean instance of the given class with the specified autowire* strategy. All constants defined in this interface are supported here.* Can also be invoked with {@code AUTOWIRE_NO} in order to just apply* before-instantiation callbacks (e.g. for annotation-driven injection).* <p>Does <i>not</i> apply standard {@link BeanPostProcessor BeanPostProcessors}* callbacks or perform any further initialization of the bean. This interface* offers distinct, fine-grained operations for those purposes, for example* {@link #initializeBean}. However, {@link InstantiationAwareBeanPostProcessor}* callbacks are applied, if applicable to the construction of the instance.* @param beanClass the class of the bean to instantiate* @param autowireMode by name or type, using the constants in this interface* @param dependencyCheck whether to perform a dependency check for object* references in the bean instance (not applicable to autowiring a constructor,* thus ignored there)* @return the new bean instance* @throws BeansException if instantiation or wiring failed* @see #AUTOWIRE_NO* @see #AUTOWIRE_BY_NAME* @see #AUTOWIRE_BY_TYPE* @see #AUTOWIRE_CONSTRUCTOR* @see #AUTOWIRE_AUTODETECT* @see #initializeBean* @see #applyBeanPostProcessorsBeforeInitialization* @see #applyBeanPostProcessorsAfterInitialization*/Object autowire(Class<?> beanClass, int autowireMode, boolean dependencyCheck) throws BeansException;/*** Autowire the bean properties of the given bean instance by name or type.* Can also be invoked with {@code AUTOWIRE_NO} in order to just apply* after-instantiation callbacks (e.g. for annotation-driven injection).* <p>Does <i>not</i> apply standard {@link BeanPostProcessor BeanPostProcessors}* callbacks or perform any further initialization of the bean. This interface* offers distinct, fine-grained operations for those purposes, for example* {@link #initializeBean}. However, {@link InstantiationAwareBeanPostProcessor}* callbacks are applied, if applicable to the configuration of the instance.* @param existingBean the existing bean instance* @param autowireMode by name or type, using the constants in this interface* @param dependencyCheck whether to perform a dependency check for object* references in the bean instance* @throws BeansException if wiring failed* @see #AUTOWIRE_BY_NAME* @see #AUTOWIRE_BY_TYPE* @see #AUTOWIRE_NO*/void autowireBeanProperties(Object existingBean, int autowireMode, boolean dependencyCheck)throws BeansException;/*** Apply the property values of the bean definition with the given name to* the given bean instance. The bean definition can either define a fully* self-contained bean, reusing its property values, or just property values* meant to be used for existing bean instances.* <p>This method does <i>not</i> autowire bean properties; it just applies* explicitly defined property values. Use the {@link #autowireBeanProperties}* method to autowire an existing bean instance.* <b>Note: This method requires a bean definition for the given name!</b>* <p>Does <i>not</i> apply standard {@link BeanPostProcessor BeanPostProcessors}* callbacks or perform any further initialization of the bean. This interface* offers distinct, fine-grained operations for those purposes, for example* {@link #initializeBean}. However, {@link InstantiationAwareBeanPostProcessor}* callbacks are applied, if applicable to the configuration of the instance.* @param existingBean the existing bean instance* @param beanName the name of the bean definition in the bean factory* (a bean definition of that name has to be available)* @throws org.springframework.beans.factory.NoSuchBeanDefinitionException* if there is no bean definition with the given name* @throws BeansException if applying the property values failed* @see #autowireBeanProperties*/void applyBeanPropertyValues(Object existingBean, String beanName) throws BeansException;/*** Initialize the given raw bean, applying factory callbacks* such as {@code setBeanName} and {@code setBeanFactory},* also applying all bean post processors (including ones which* might wrap the given raw bean).* <p>Note that no bean definition of the given name has to exist* in the bean factory. The passed-in bean name will simply be used* for callbacks but not checked against the registered bean definitions.* @param existingBean the existing bean instance* @param beanName the name of the bean, to be passed to it if necessary* (only passed to {@link BeanPostProcessor BeanPostProcessors})* @return the bean instance to use, either the original or a wrapped one* @throws BeansException if the initialization failed*/Object initializeBean(Object existingBean, String beanName) throws BeansException;/*** Apply {@link BeanPostProcessor BeanPostProcessors} to the given existing bean* instance, invoking their {@code postProcessBeforeInitialization} methods.* The returned bean instance may be a wrapper around the original.* @param existingBean the new bean instance* @param beanName the name of the bean* @return the bean instance to use, either the original or a wrapped one* @throws BeansException if any post-processing failed* @see BeanPostProcessor#postProcessBeforeInitialization*/Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName)throws BeansException;/*** Apply {@link BeanPostProcessor BeanPostProcessors} to the given existing bean* instance, invoking their {@code postProcessAfterInitialization} methods.* The returned bean instance may be a wrapper around the original.* @param existingBean the new bean instance* @param beanName the name of the bean* @return the bean instance to use, either the original or a wrapped one* @throws BeansException if any post-processing failed* @see BeanPostProcessor#postProcessAfterInitialization*/Object applyBeanPostProcessorsAfterInitialization(Object existingBean, String beanName)throws BeansException;/*** Destroy the given bean instance (typically coming from {@link #createBean}),* applying the {@link org.springframework.beans.factory.DisposableBean} contract as well as* registered {@link DestructionAwareBeanPostProcessor DestructionAwareBeanPostProcessors}.* <p>Any exception that arises during destruction should be caught* and logged instead of propagated to the caller of this method.* @param existingBean the bean instance to destroy*/void destroyBean(Object existingBean);/*** Resolve the specified dependency against the beans defined in this factory.* @param descriptor the descriptor for the dependency* @param beanName the name of the bean which declares the present dependency* @param autowiredBeanNames a Set that all names of autowired beans (used for* resolving the present dependency) are supposed to be added to* @param typeConverter the TypeConverter to use for populating arrays and* collections* @return the resolved object, or {@code null} if none found* @throws BeansException in dependency resolution failed*/Object resolveDependency(DependencyDescriptor descriptor, String beanName,Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException;

其中：

HierarchicalBeanFactory的子接口 ConfigurableBeanFactory是一個配置接口，大部分beanFactory實現(xiàn)了這個接口。這個接口提供了對一個beanfactory進行配置的便利方法，加上beanFactory接口的客戶端方法。增強了IoC容器的可定制性，它定義了設置類裝載器、屬性編輯器、容器初始化后置處理器等方法； public interface ConfigurableBeanFactory extends HierarchicalBeanFactory, SingletonBeanRegistry {/*** Scope identifier for the standard singleton scope: "singleton".* Custom scopes can be added via {@code registerScope}.* @see #registerScope*/String SCOPE_SINGLETON = "singleton";/*** Scope identifier for the standard prototype scope: "prototype".* Custom scopes can be added via {@code registerScope}.* @see #registerScope*/String SCOPE_PROTOTYPE = "prototype";/*** Set the parent of this bean factory.* <p>Note that the parent cannot be changed: It should only be set outside* a constructor if it isn't available at the time of factory instantiation.* @param parentBeanFactory the parent BeanFactory* @throws IllegalStateException if this factory is already associated with* a parent BeanFactory* @see #getParentBeanFactory()*/void setParentBeanFactory(BeanFactory parentBeanFactory) throws IllegalStateException;/*** Set the class loader to use for loading bean classes.* Default is the thread context class loader.* <p>Note that this class loader will only apply to bean definitions* that do not carry a resolved bean class yet. This is the case as of* Spring 2.0 by default: Bean definitions only carry bean class names,* to be resolved once the factory processes the bean definition.* @param beanClassLoader the class loader to use,* or {@code null} to suggest the default class loader*/void setBeanClassLoader(ClassLoader beanClassLoader);/*** Return this factory's class loader for loading bean classes.*/ClassLoader getBeanClassLoader();/*** Specify a temporary ClassLoader to use for type matching purposes.* Default is none, simply using the standard bean ClassLoader.* <p>A temporary ClassLoader is usually just specified if* <i>load-time weaving</i> is involved, to make sure that actual bean* classes are loaded as lazily as possible. The temporary loader is* then removed once the BeanFactory completes its bootstrap phase.* @since 2.5*/void setTempClassLoader(ClassLoader tempClassLoader);/*** Return the temporary ClassLoader to use for type matching purposes,* if any.* @since 2.5*/ClassLoader getTempClassLoader();/*** Set whether to cache bean metadata such as given bean definitions* (in merged fashion) and resolved bean classes. Default is on.* <p>Turn this flag off to enable hot-refreshing of bean definition objects* and in particular bean classes. If this flag is off, any creation of a bean* instance will re-query the bean class loader for newly resolved classes.*/void setCacheBeanMetadata(boolean cacheBeanMetadata);/*** Return whether to cache bean metadata such as given bean definitions* (in merged fashion) and resolved bean classes.*/boolean isCacheBeanMetadata();/*** Specify the resolution strategy for expressions in bean definition values.* <p>There is no expression support active in a BeanFactory by default.* An ApplicationContext will typically set a standard expression strategy* here, supporting "#{...}" expressions in a Unified EL compatible style.* @since 3.0*/void setBeanExpressionResolver(BeanExpressionResolver resolver);/*** Return the resolution strategy for expressions in bean definition values.* @since 3.0*/BeanExpressionResolver getBeanExpressionResolver();/*** Specify a Spring 3.0 ConversionService to use for converting* property values, as an alternative to JavaBeans PropertyEditors.* @since 3.0*/void setConversionService(ConversionService conversionService);/*** Return the associated ConversionService, if any.* @since 3.0*/ConversionService getConversionService();/*** Add a PropertyEditorRegistrar to be applied to all bean creation processes.* <p>Such a registrar creates new PropertyEditor instances and registers them* on the given registry, fresh for each bean creation attempt. This avoids* the need for synchronization on custom editors; hence, it is generally* preferable to use this method instead of {@link #registerCustomEditor}.* @param registrar the PropertyEditorRegistrar to register*/void addPropertyEditorRegistrar(PropertyEditorRegistrar registrar);/*** Register the given custom property editor for all properties of the* given type. To be invoked during factory configuration.* <p>Note that this method will register a shared custom editor instance;* access to that instance will be synchronized for thread-safety. It is* generally preferable to use {@link #addPropertyEditorRegistrar} instead* of this method, to avoid for the need for synchronization on custom editors.* @param requiredType type of the property* @param propertyEditorClass the {@link PropertyEditor} class to register*/void registerCustomEditor(Class<?> requiredType, Class<? extends PropertyEditor> propertyEditorClass);/*** Initialize the given PropertyEditorRegistry with the custom editors* that have been registered with this BeanFactory.* @param registry the PropertyEditorRegistry to initialize*/void copyRegisteredEditorsTo(PropertyEditorRegistry registry);/*** Set a custom type converter that this BeanFactory should use for converting* bean property values, constructor argument values, etc.* <p>This will override the default PropertyEditor mechanism and hence make* any custom editors or custom editor registrars irrelevant.* @see #addPropertyEditorRegistrar* @see #registerCustomEditor* @since 2.5*/void setTypeConverter(TypeConverter typeConverter);/*** Obtain a type converter as used by this BeanFactory. This may be a fresh* instance for each call, since TypeConverters are usually <i>not</i> thread-safe.* <p>If the default PropertyEditor mechanism is active, the returned* TypeConverter will be aware of all custom editors that have been registered.* @since 2.5*/TypeConverter getTypeConverter();/*** Add a String resolver for embedded values such as annotation attributes.* @param valueResolver the String resolver to apply to embedded values* @since 3.0*/void addEmbeddedValueResolver(StringValueResolver valueResolver);/*** Resolve the given embedded value, e.g. an annotation attribute.* @param value the value to resolve* @return the resolved value (may be the original value as-is)* @since 3.0*/String resolveEmbeddedValue(String value);/*** Add a new BeanPostProcessor that will get applied to beans created* by this factory. To be invoked during factory configuration.* <p>Note: Post-processors submitted here will be applied in the order of* registration; any ordering semantics expressed through implementing the* {@link org.springframework.core.Ordered} interface will be ignored. Note* that autodetected post-processors (e.g. as beans in an ApplicationContext)* will always be applied after programmatically registered ones.* @param beanPostProcessor the post-processor to register*/void addBeanPostProcessor(BeanPostProcessor beanPostProcessor);/*** Return the current number of registered BeanPostProcessors, if any.*/int getBeanPostProcessorCount();/*** Register the given scope, backed by the given Scope implementation.* @param scopeName the scope identifier* @param scope the backing Scope implementation*/void registerScope(String scopeName, Scope scope);/*** Return the names of all currently registered scopes.* <p>This will only return the names of explicitly registered scopes.* Built-in scopes such as "singleton" and "prototype" won't be exposed.* @return the array of scope names, or an empty array if none* @see #registerScope*/String[] getRegisteredScopeNames();/*** Return the Scope implementation for the given scope name, if any.* <p>This will only return explicitly registered scopes.* Built-in scopes such as "singleton" and "prototype" won't be exposed.* @param scopeName the name of the scope* @return the registered Scope implementation, or {@code null} if none* @see #registerScope*/Scope getRegisteredScope(String scopeName);/*** Provides a security access control context relevant to this factory.* @return the applicable AccessControlContext (never {@code null})* @since 3.0*/AccessControlContext getAccessControlContext();/*** Copy all relevant configuration from the given other factory.* <p>Should include all standard configuration settings as well as* BeanPostProcessors, Scopes, and factory-specific internal settings.* Should not include any metadata of actual bean definitions,* such as BeanDefinition objects and bean name aliases.* @param otherFactory the other BeanFactory to copy from*/void copyConfigurationFrom(ConfigurableBeanFactory otherFactory);/*** Given a bean name, create an alias. We typically use this method to* support names that are illegal within XML ids (used for bean names).* <p>Typically invoked during factory configuration, but can also be* used for runtime registration of aliases. Therefore, a factory* implementation should synchronize alias access.* @param beanName the canonical name of the target bean* @param alias the alias to be registered for the bean* @throws BeanDefinitionStoreException if the alias is already in use*/void registerAlias(String beanName, String alias) throws BeanDefinitionStoreException;/*** Resolve all alias target names and aliases registered in this* factory, applying the given StringValueResolver to them.* <p>The value resolver may for example resolve placeholders* in target bean names and even in alias names.* @param valueResolver the StringValueResolver to apply* @since 2.5*/void resolveAliases(StringValueResolver valueResolver);/*** Return a merged BeanDefinition for the given bean name,* merging a child bean definition with its parent if necessary.* Considers bean definitions in ancestor factories as well.* @param beanName the name of the bean to retrieve the merged definition for* @return a (potentially merged) BeanDefinition for the given bean* @throws NoSuchBeanDefinitionException if there is no bean definition with the given name* @since 2.5*/BeanDefinition getMergedBeanDefinition(String beanName) throws NoSuchBeanDefinitionException;/*** Determine whether the bean with the given name is a FactoryBean.* @param name the name of the bean to check* @return whether the bean is a FactoryBean* ({@code false} means the bean exists but is not a FactoryBean)* @throws NoSuchBeanDefinitionException if there is no bean with the given name* @since 2.5*/boolean isFactoryBean(String name) throws NoSuchBeanDefinitionException;/*** Explicitly control the current in-creation status of the specified bean.* For container-internal use only.* @param beanName the name of the bean* @param inCreation whether the bean is currently in creation* @since 3.1*/void setCurrentlyInCreation(String beanName, boolean inCreation);/*** Determine whether the specified bean is currently in creation.* @param beanName the name of the bean* @return whether the bean is currently in creation* @since 2.5*/boolean isCurrentlyInCreation(String beanName);/*** Register a dependent bean for the given bean,* to be destroyed before the given bean is destroyed.* @param beanName the name of the bean* @param dependentBeanName the name of the dependent bean* @since 2.5*/void registerDependentBean(String beanName, String dependentBeanName);/*** Return the names of all beans which depend on the specified bean, if any.* @param beanName the name of the bean* @return the array of dependent bean names, or an empty array if none* @since 2.5*/String[] getDependentBeans(String beanName);/*** Return the names of all beans that the specified bean depends on, if any.* @param beanName the name of the bean* @return the array of names of beans which the bean depends on,* or an empty array if none* @since 2.5*/String[] getDependenciesForBean(String beanName);/*** Destroy the given bean instance (usually a prototype instance* obtained from this factory) according to its bean definition.* <p>Any exception that arises during destruction should be caught* and logged instead of propagated to the caller of this method.* @param beanName the name of the bean definition* @param beanInstance the bean instance to destroy*/void destroyBean(String beanName, Object beanInstance);/*** Destroy the specified scoped bean in the current target scope, if any.* <p>Any exception that arises during destruction should be caught* and logged instead of propagated to the caller of this method.* @param beanName the name of the scoped bean*/void destroyScopedBean(String beanName);/*** Destroy all singleton beans in this factory, including inner beans that have* been registered as disposable. To be called on shutdown of a factory.* <p>Any exception that arises during destruction should be caught* and logged instead of propagated to the caller of this method.*/void destroySingletons();}

ConfigurableListableBeanFactory 它同時繼承了ListableBeanFactory，AutowireCapableBeanFactory和ConfigurableBeanFactory，提供了對bean定義的分析和修改的便利方法，同時也提供了對單例的預實例化。

public interface ConfigurableListableBeanFactoryextends ListableBeanFactory, AutowireCapableBeanFactory, ConfigurableBeanFactory {/*** Ignore the given dependency type for autowiring:* for example, String. Default is none.* @param type the dependency type to ignore*/void ignoreDependencyType(Class<?> type);/*** Ignore the given dependency interface for autowiring.* <p>This will typically be used by application contexts to register* dependencies that are resolved in other ways, like BeanFactory through* BeanFactoryAware or ApplicationContext through ApplicationContextAware.* <p>By default, only the BeanFactoryAware interface is ignored.* For further types to ignore, invoke this method for each type.* @param ifc the dependency interface to ignore* @see org.springframework.beans.factory.BeanFactoryAware* @see org.springframework.context.ApplicationContextAware*/void ignoreDependencyInterface(Class<?> ifc);/*** Register a special dependency type with corresponding autowired value.* <p>This is intended for factory/context references that are supposed* to be autowirable but are not defined as beans in the factory:* e.g. a dependency of type ApplicationContext resolved to the* ApplicationContext instance that the bean is living in.* <p>Note: There are no such default types registered in a plain BeanFactory,* not even for the BeanFactory interface itself.* @param dependencyType the dependency type to register. This will typically* be a base interface such as BeanFactory, with extensions of it resolved* as well if declared as an autowiring dependency (e.g. ListableBeanFactory),* as long as the given value actually implements the extended interface.* @param autowiredValue the corresponding autowired value. This may also be an* implementation of the {@link org.springframework.beans.factory.ObjectFactory}* interface, which allows for lazy resolution of the actual target value.*/void registerResolvableDependency(Class<?> dependencyType, Object autowiredValue);/*** Determine whether the specified bean qualifies as an autowire candidate,* to be injected into other beans which declare a dependency of matching type.* <p>This method checks ancestor factories as well.* @param beanName the name of the bean to check* @param descriptor the descriptor of the dependency to resolve* @return whether the bean should be considered as autowire candidate* @throws NoSuchBeanDefinitionException if there is no bean with the given name*/boolean isAutowireCandidate(String beanName, DependencyDescriptor descriptor)throws NoSuchBeanDefinitionException;/*** Return the registered BeanDefinition for the specified bean, allowing access* to its property values and constructor argument value (which can be* modified during bean factory post-processing).* <p>A returned BeanDefinition object should not be a copy but the original* definition object as registered in the factory. This means that it should* be castable to a more specific implementation type, if necessary.* <p><b>NOTE:</b> This method does <i>not</i> consider ancestor factories.* It is only meant for accessing local bean definitions of this factory.* @param beanName the name of the bean* @return the registered BeanDefinition* @throws NoSuchBeanDefinitionException if there is no bean with the given name* defined in this factory*/BeanDefinition getBeanDefinition(String beanName) throws NoSuchBeanDefinitionException;/*** Freeze all bean definitions, signalling that the registered bean definitions* will not be modified or post-processed any further.* <p>This allows the factory to aggressively cache bean definition metadata.*/void freezeConfiguration();/*** Return whether this factory's bean definitions are frozen,* i.e. are not supposed to be modified or post-processed any further.* @return {@code true} if the factory's configuration is considered frozen*/boolean isConfigurationFrozen();/*** Ensure that all non-lazy-init singletons are instantiated, also considering* {@link org.springframework.beans.factory.FactoryBean FactoryBeans}.* Typically invoked at the end of factory setup, if desired.* @throws BeansException if one of the singleton beans could not be created.* Note: This may have left the factory with some beans already initialized!* Call {@link #destroySingletons()} for full cleanup in this case.* @see #destroySingletons()*/void preInstantiateSingletons() throws BeansException;}

小結：

1. beanFactory有四個子接口，添加了四種不同的能力，分別是：

SimpleJndiBeanFactory：支持jndi。

AutowireCapableBeanFactory：支持自動裝配。

HierarchicalBeanFactory：支持層次結構，ConfigurableListableBeanFactory實現(xiàn)了HierarchicalBeanFactory，提供了可配置功能。

ListableBeanFactory：支持枚舉。

2. bean經過兩次進化，到了DefaultListableBeanFactory，完善了bean容器的功能。

? ?DefaultListableBeanFactory實現(xiàn)了AbstractAutowireCapableBeanFactory,ConfigurableListableBeanFactory, BeanDefinitionRegistry, Serializable等多個接口。

3.最終進化：

XmlBeanFactory 通過從xml文件中讀取bean的定義和依賴。

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下一節(jié)，重點了解AbstractAutowireCapableBeanFactory，BeanDefinitionRegistry接口，全面了解bean factory的完整進化歷史。

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轉載于:https://www.cnblogs.com/davidwang456/p/4152241.html

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