程序包 org.springframework.beans.factory
The core package implementing Spring's lightweight Inversion of Control (IoC) container.
Provides an alternative to the Singleton and Prototype design patterns, including a consistent approach to configuration management. Builds on the org.springframework.beans package.
This package and related packages are discussed in Chapter 11 of Expert One-On-One J2EE Design and Development by Rod Johnson (Wrox, 2002).
接口概要 接口 说明 Aware A marker superinterface indicating that a bean is eligible to be notified by the Spring container of a particular framework object through a callback-style method.BeanClassLoaderAware Callback that allows a bean to be aware of the beanclass loader
; that is, the class loader used by the present bean factory to load bean classes.BeanFactory The root interface for accessing a Spring bean container.BeanFactoryAware Interface to be implemented by beans that wish to be aware of their owningBeanFactory
.BeanNameAware Interface to be implemented by beans that want to be aware of their bean name in a bean factory.DisposableBean Interface to be implemented by beans that want to release resources on destruction.FactoryBean<T> Interface to be implemented by objects used within aBeanFactory
which are themselves factories for individual objects.HierarchicalBeanFactory Sub-interface implemented by bean factories that can be part of a hierarchy.InitializingBean Interface to be implemented by beans that need to react once all their properties have been set by aBeanFactory
: e.g. to perform custom initialization, or merely to check that all mandatory properties have been set.ListableBeanFactory Extension of theBeanFactory
interface to be implemented by bean factories that can enumerate all their bean instances, rather than attempting bean lookup by name one by one as requested by clients.NamedBean Counterpart ofBeanNameAware
.ObjectFactory<T> Defines a factory which can return an Object instance (possibly shared or independent) when invoked.ObjectProvider<T> A variant ofObjectFactory
designed specifically for injection points, allowing for programmatic optionality and lenient not-unique handling.SmartFactoryBean<T> Extension of theFactoryBean
interface.SmartInitializingSingleton Callback interface triggered at the end of the singleton pre-instantiation phase duringBeanFactory
bootstrap.类概要 类 说明 BeanFactoryUtils Convenience methods operating on bean factories, in particular on theListableBeanFactory
interface.InjectionPoint A simple descriptor for an injection point, pointing to a method/constructor parameter or a field.异常错误概要 异常错误 说明 BeanCreationException Exception thrown when a BeanFactory encounters an error when attempting to create a bean from a bean definition.BeanCreationNotAllowedException Exception thrown in case of a bean being requested despite bean creation currently not being allowed (for example, during the shutdown phase of a bean factory).BeanCurrentlyInCreationException Exception thrown in case of a reference to a bean that's currently in creation.BeanDefinitionStoreException Exception thrown when a BeanFactory encounters an invalid bean definition: e.g. in case of incomplete or contradictory bean metadata.BeanExpressionException Exception that indicates an expression evaluation attempt having failed.BeanInitializationException Exception that a bean implementation is suggested to throw if its own factory-aware initialization code fails.BeanIsAbstractException Exception thrown when a bean instance has been requested for a bean definition which has been marked as abstract.BeanIsNotAFactoryException Exception thrown when a bean is not a factory, but a user tries to get at the factory for the given bean name.BeanNotOfRequiredTypeException Thrown when a bean doesn't match the expected type.CannotLoadBeanClassException Exception thrown when the BeanFactory cannot load the specified class of a given bean.FactoryBeanNotInitializedException Exception to be thrown from a FactoryBean'sgetObject()
method if the bean is not fully initialized yet, for example because it is involved in a circular reference.NoSuchBeanDefinitionException Exception thrown when aBeanFactory
is asked for a bean instance for which it cannot find a definition.NoUniqueBeanDefinitionException Exception thrown when aBeanFactory
is asked for a bean instance for which multiple matching candidates have been found when only one matching bean was expected.UnsatisfiedDependencyException Exception thrown when a bean depends on other beans or simple properties that were not specified in the bean factory definition, although dependency checking was enabled.