高端网站开发的公司,公司网站建设长春,wordpress mysql调整,设计师证书报考条件ConfigurableBeanFactory定义BeanFactory的配置.ConfigurableBeanFactory中定义了太多太多的api,比如类加载器,类型转化,属性编辑器,BeanPostProcessor,作用域,bean定义,处理bean依赖关系,合并其他ConfigurableBeanFactory,bean如何销毁.
ConfigurableBeanFactory同时继承了Hi… ConfigurableBeanFactory定义BeanFactory的配置.ConfigurableBeanFactory中定义了太多太多的api,比如类加载器,类型转化,属性编辑器,BeanPostProcessor,作用域,bean定义,处理bean依赖关系,合并其他ConfigurableBeanFactory,bean如何销毁.
ConfigurableBeanFactory同时继承了HierarchicalBeanFactory 和 SingletonBeanRegistry 这两个接口即同时继承了分层和单例类注册的功能。
具体
1、2个静态不可变常量分别代表单例类和原型类。
2、1个设置父工厂的方法跟HierarchicalBeanFactory接口的getParentBeanFactory方法互补。
3、4个跟类加载器有关的方法get/set工厂类加载器和get/set临时类加载器。
4、2个设置、是否缓存元数据的方法热加载开关。
5、11个处理Bean注册、加载等细节的方法包括Bean表达式分解器、转换服务、属性编辑登记员、属性编辑器、属性编辑注册器、类型转换器、嵌入式的字符串分解器
6、2个处理Bean后处理器的方法。
7、3个跟注册范围相关的方法。
8、1个返回安全访问上下文的方法、1个从其他的工厂复制相关的所有配置的方法。
9、2个跟Bean别名相关的方法、1个返回合并后的Bean定义的方法。
10、1个判断是否为工厂Bean的方法、2个跟当前Bean创建时机相关的方法。
11、3个跟Bean依赖相关的方法、3个销毁Bean相关的方法。
总结这个巨大的工厂接口继承自HierarchicalBeanFactory 和 SingletonBeanRegistry 这两个接口并额外独有37个方法看的我都快疯了…这37个方法包含了工厂创建、注册一个Bean的众多细节。这个工厂名为ConfigurableBeanFactory真是名不虚传统计一下此时的ConfigurableBeanFactory的方法数吧。自有的37个方法、HierarchicalBeanFactory的2个方法、SingletonBeanRegistry的5个方法、爷爷接口BeanFactory的10个方法共有54个方法虽然方法繁多还算井井有条
/*** Configuration interface to be implemented by most bean factories. Provides* facilities to configure a bean factory, in addition to the bean factory* client methods in the {link org.springframework.beans.factory.BeanFactory}* interface.** pThis bean factory interface is not meant to be used in normal application* code: Stick to {link org.springframework.beans.factory.BeanFactory} or* {link org.springframework.beans.factory.ListableBeanFactory} for typical* needs. This extended interface is just meant to allow for framework-internal* plugnplay and for special access to bean factory configuration methods.** author Juergen Hoeller* since 03.11.2003* see org.springframework.beans.factory.BeanFactory* see org.springframework.beans.factory.ListableBeanFactory* see ConfigurableListableBeanFactory*/
/*** 定义BeanFactory的配置.* * 这边定义了太多太多的api,比如类加载器,类型转化,属性编辑器,BeanPostProcessor,作用域,bean定义,处理bean依赖关系,合并其他ConfigurableBeanFactory,bean如何销毁.* * author DemoTransfer* since 4.3*/
public interface ConfigurableBeanFactory extends HierarchicalBeanFactory, SingletonBeanRegistry {//-------------------------------------------------------------------------// 定义了两个作用域: 单例和原型.可以通过registerScope来添加.// SCOPE_SINGLETON,SCOPE_PROTOTYPE//-------------------------------------------------------------------------/*** Scope identifier for the standard singleton scope: singleton.* Custom scopes can be added via {code registerScope}.* see #registerScope*/// 单例String SCOPE_SINGLETON singleton;/*** Scope identifier for the standard prototype scope: prototype.* Custom scopes can be added via {code registerScope}.* see #registerScope*/// 原型String SCOPE_PROTOTYPE prototype;/*** Set the parent of this bean factory.* pNote that the parent cannot be changed: It should only be set outside* a constructor if it isnt 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()*/// 父容器设置.而且一旦设置了就不让修改/** 搭配HierarchicalBeanFactory接口的getParentBeanFactory方法*/void setParentBeanFactory(BeanFactory parentBeanFactory) throws IllegalStateException;/*** Set the class loader to use for loading bean classes.* Default is the thread context class loader.* pNote 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*/// 类加载器设置与获取.默认使用当前线程中的类加载器/** 设置、返回工厂的类加载器*/void setBeanClassLoader(ClassLoader beanClassLoader);/*** Return this factorys class loader for loading bean classes.*/// 类加载器设置与获取.默认使用当前线程中的类加载器ClassLoader getBeanClassLoader();/*** Specify a temporary ClassLoader to use for type matching purposes.* Default is none, simply using the standard bean ClassLoader.* pA temporary ClassLoader is usually just specified if* iload-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*/// 为了类型匹配,搞个临时类加载器.好在一般情况为null,使用上面定义的标准加载器/** 设置、返回一个临时的类加载器*/void setTempClassLoader(ClassLoader tempClassLoader);/*** Return the temporary ClassLoader to use for type matching purposes,* if any.* since 2.5*/// 为了类型匹配,搞个临时类加载器.好在一般情况为null,使用上面定义的标准加载器ClassLoader getTempClassLoader();/*** Set whether to cache bean metadata such as given bean definitions* (in merged fashion) and resolved bean classes. Default is on.* pTurn 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.*/// 是否需要缓存bean metadata,比如bean difinition 和 解析好的classes.默认开启缓存/** 设置、是否缓存元数据如果false那么每次请求实例都会从类加载器重新加载热加载*/void setCacheBeanMetadata(boolean cacheBeanMetadata);/*** Return whether to cache bean metadata such as given bean definitions* (in merged fashion) and resolved bean classes.*/// 是否需要缓存bean metadata,比如bean difinition 和 解析好的classes.默认开启缓存// 是否缓存元数据boolean isCacheBeanMetadata();/*** Specify the resolution strategy for expressions in bean definition values.* pThere 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*/// 定义用于解析bean definition的表达式解析器/** Bean表达式分解器*/void setBeanExpressionResolver(BeanExpressionResolver resolver);/*** Return the resolution strategy for expressions in bean definition values.* since 3.0*/// 定义用于解析bean definition的表达式解析器BeanExpressionResolver getBeanExpressionResolver();/*** Specify a Spring 3.0 ConversionService to use for converting* property values, as an alternative to JavaBeans PropertyEditors.* since 3.0*/// 类型转化器/** 设置、返回一个转换服务*/void setConversionService(ConversionService conversionService);/*** Return the associated ConversionService, if any.* since 3.0*/// 类型转化器ConversionService getConversionService();/*** Add a PropertyEditorRegistrar to be applied to all bean creation processes.* pSuch 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*/// 属性编辑器/** 设置属性编辑登记员...*/void addPropertyEditorRegistrar(PropertyEditorRegistrar registrar);/*** Register the given custom property editor for all properties of the* given type. To be invoked during factory configuration.* pNote 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*/// 属性编辑器/** 注册常用属性编辑器*/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*/// 属性编辑器/** 用工厂中注册的通用的编辑器初始化指定的属性编辑注册器*/void copyRegisteredEditorsTo(PropertyEditorRegistry registry);/*** Set a custom type converter that this BeanFactory should use for converting* bean property values, constructor argument values, etc.* pThis will override the default PropertyEditor mechanism and hence make* any custom editors or custom editor registrars irrelevant.* see #addPropertyEditorRegistrar* see #registerCustomEditor* since 2.5*/// BeanFactory用来转换bean属性值或者参数值的自定义转换器/** 设置、得到一个类型转换器*/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 inot/i thread-safe.* pIf the default PropertyEditor mechanism is active, the returned* TypeConverter will be aware of all custom editors that have been registered.* since 2.5*/// BeanFactory用来转换bean属性值或者参数值的自定义转换器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*/// string值解析器(想起mvc中的ArgumentResolver了)/** 增加一个嵌入式的StringValueResolver*/void addEmbeddedValueResolver(StringValueResolver valueResolver);/*** Determine whether an embedded value resolver has been registered with this* bean factory, to be applied through {link #resolveEmbeddedValue(String)}.* since 4.3*/boolean hasEmbeddedValueResolver();/*** 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值解析器(想起mvc中的ArgumentResolver了)//分解指定的嵌入式的值String resolveEmbeddedValue(String value);/*** Add a new BeanPostProcessor that will get applied to beans created* by this factory. To be invoked during factory configuration.* pNote: 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*/// BeanPostProcessor用于增强bean初始化功能//设置一个Bean后处理器void addBeanPostProcessor(BeanPostProcessor beanPostProcessor);/*** Return the current number of registered BeanPostProcessors, if any.*///返回Bean后处理器的数量int getBeanPostProcessorCount();/*** Register the given scope, backed by the given Scope implementation.* param scopeName the scope identifier* param scope the backing Scope implementation*/// 作用域定义//注册范围void registerScope(String scopeName, Scope scope);/*** Return the names of all currently registered scopes.* pThis will only return the names of explicitly registered scopes.* Built-in scopes such as singleton and prototype wont be exposed.* return the array of scope names, or an empty array if none* see #registerScope*/// 作用域定义//返回注册的范围名String[] getRegisteredScopeNames();/*** Return the Scope implementation for the given scope name, if any.* pThis will only return explicitly registered scopes.* Built-in scopes such as singleton and prototype wont be exposed.* param scopeName the name of the scope* return the registered Scope implementation, or {code null} if none* see #registerScope*/// 作用域定义//返回指定的范围Scope getRegisteredScope(String scopeName);/*** Provides a security access control context relevant to this factory.* return the applicable AccessControlContext (never {code null})* since 3.0*/// 访问权限控制//返回本工厂的一个安全访问上下文AccessControlContext getAccessControlContext();/*** Copy all relevant configuration from the given other factory.* pShould 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*/// 合并其他ConfigurableBeanFactory的配置,包括上面说到的BeanPostProcessor,作用域等//从其他的工厂复制相关的所有配置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).* pTypically 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*/// bean定义处理// 注册别名/** 给指定的Bean注册别名*/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.* pThe 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*/// bean定义处理//根据指定的StringValueResolver移除所有的别名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*/// bean定义处理// 合并bean定义,包括父容器的/** 返回指定Bean合并后的Bean定义*/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*/// bean定义处理// 是否是FactoryBean类型//判断指定Bean是否为一个工厂Beanboolean 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*/// bean创建状态控制.在解决循环依赖时有使用//设置一个Bean是否正在创建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*/// bean创建状态控制.在解决循环依赖时有使用//返回指定Bean是否已经成功创建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*/// 处理bean依赖问题//注册一个依赖于指定bean的Beanvoid 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*/// 处理bean依赖问题//返回依赖于指定Bean的所欲Bean名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*/// 处理bean依赖问题//返回指定Bean依赖的所有Bean名String[] getDependenciesForBean(String beanName);/*** Destroy the given bean instance (usually a prototype instance* obtained from this factory) according to its bean definition.* pAny 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*/// bean生命周期管理-- 销毁bean//销毁指定的Beanvoid destroyBean(String beanName, Object beanInstance);/*** Destroy the specified scoped bean in the current target scope, if any.* pAny 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*/// bean生命周期管理-- 销毁bean//销毁指定的范围Beanvoid 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.* pAny exception that arises during destruction should be caught* and logged instead of propagated to the caller of this method.*/// bean生命周期管理-- 销毁bean//销毁所有的单例类void destroySingletons();}
