Interface BeanPostProcessor
- All Known Subinterfaces:
DestructionAwareBeanPostProcessor
,InstantiationAwareBeanPostProcessor
,MergedBeanDefinitionPostProcessor
,SmartInstantiationAwareBeanPostProcessor
- All Known Implementing Classes:
AbstractAdvisingBeanPostProcessor
,AbstractAdvisorAutoProxyCreator
,AbstractAutoProxyCreator
,AbstractBeanFactoryAwareAdvisingPostProcessor
,AdvisorAdapterRegistrationManager
,AnnotationAwareAspectJAutoProxyCreator
,AspectJAwareAdvisorAutoProxyCreator
,AsyncAnnotationBeanPostProcessor
,AutowiredAnnotationBeanPostProcessor
,BeanNameAutoProxyCreator
,BeanValidationPostProcessor
,CommonAnnotationBeanPostProcessor
,DefaultAdvisorAutoProxyCreator
,InfrastructureAdvisorAutoProxyCreator
,InitDestroyAnnotationBeanPostProcessor
,InstantiationAwareBeanPostProcessorAdapter
,JmsListenerAnnotationBeanPostProcessor
,LoadTimeWeaverAwareProcessor
,MethodValidationPostProcessor
,PersistenceAnnotationBeanPostProcessor
,PersistenceExceptionTranslationPostProcessor
,PortletContextAwareProcessor
,RequiredAnnotationBeanPostProcessor
,ScheduledAnnotationBeanPostProcessor
,ScriptFactoryPostProcessor
,ServletContextAwareProcessor
,SimplePortletPostProcessor
,SimpleServletPostProcessor
public interface BeanPostProcessor
Factory hook that allows for custom modification of new bean instances, e.g. checking for marker interfaces or wrapping them with proxies.ApplicationContexts can autodetect BeanPostProcessor beans in their bean definitions and apply them to any beans subsequently created. Plain bean factories allow for programmatic registration of post-processors, applying to all beans created through this factory.
Typically, post-processors that populate beans via marker interfaces or the like will implement
postProcessBeforeInitialization(java.lang.Object, java.lang.String)
, while post-processors that wrap beans with proxies will normally implementpostProcessAfterInitialization(java.lang.Object, java.lang.String)
.- Since:
- 10.10.2003
- Author:
- Juergen Hoeller
- See Also:
InstantiationAwareBeanPostProcessor
,DestructionAwareBeanPostProcessor
,ConfigurableBeanFactory.addBeanPostProcessor(org.springframework.beans.factory.config.BeanPostProcessor)
,BeanFactoryPostProcessor
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Object
postProcessAfterInitialization(Object bean, String beanName)
Apply this BeanPostProcessor to the given new bean instance after any bean initialization callbacks (like InitializingBean'safterPropertiesSet
or a custom init-method).Object
postProcessBeforeInitialization(Object bean, String beanName)
Apply this BeanPostProcessor to the given new bean instance before any bean initialization callbacks (like InitializingBean'safterPropertiesSet
or a custom init-method).
Method Detail
postProcessBeforeInitialization
Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException
Apply this BeanPostProcessor to the given new bean instance before any bean initialization callbacks (like InitializingBean'safterPropertiesSet
or a custom init-method). The bean will already be populated with property values. The returned bean instance may be a wrapper around the original.- Parameters:
bean
- the new bean instancebeanName
- the name of the bean- Returns:
- the bean instance to use, either the original or a wrapped one; if
null
, no subsequent BeanPostProcessors will be invoked - Throws:
BeansException
- in case of errors- See Also:
InitializingBean.afterPropertiesSet()
postProcessAfterInitialization
Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException
Apply this BeanPostProcessor to the given new bean instance after any bean initialization callbacks (like InitializingBean'safterPropertiesSet
or a custom init-method). The bean will already be populated with property values. The returned bean instance may be a wrapper around the original.In case of a FactoryBean, this callback will be invoked for both the FactoryBean instance and the objects created by the FactoryBean (as of Spring 2.0). The post-processor can decide whether to apply to either the FactoryBean or created objects or both through corresponding
bean instanceof FactoryBean
checks.This callback will also be invoked after a short-circuiting triggered by a
InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation(java.lang.Class<?>, java.lang.String)
method, in contrast to all other BeanPostProcessor callbacks.- Parameters:
bean
- the new bean instancebeanName
- the name of the bean- Returns:
- the bean instance to use, either the original or a wrapped one; if
null
, no subsequent BeanPostProcessors will be invoked - Throws:
BeansException
- in case of errors- See Also:
InitializingBean.afterPropertiesSet()
,FactoryBean