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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.beans.factory.config 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.springframework.beans.factory.config.BeanPostProcessor

All known Subclasses:   org.springframework.web.portlet.context.PortletContextAwareProcessor,  org.springframework.aop.framework.adapter.AdvisorAdapterRegistrationManager,  org.springframework.web.context.support.ServletContextAwareProcessor,  org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor,  org.springframework.context.support.ApplicationContextAwareProcessor,
BeanPostProcessor
public interface BeanPostProcessor (Code)
Allows for custom modification of new bean instances, e.g. checking for marker interfaces or wrapping them with proxies.

Application contexts can auto-detect BeanPostProcessor beans in their bean definitions and apply them before any other beans get created. Plain bean factories allow for programmatic registration of post-processors.

Typically, post-processors that populate beans via marker interfaces or the like will implement postProcessBeforeInitialization, and post-processors that wrap beans with proxies will normally implement postProcessAfterInitialization.
author:
   Juergen Hoeller
since:
   10.10.2003
See Also:   InstantiationAwareBeanPostProcessor
See Also:   DestructionAwareBeanPostProcessor
See Also:   ConfigurableBeanFactory.addBeanPostProcessor
See Also:   BeanFactoryPostProcessor





Method Summary
 ObjectpostProcessAfterInitialization(Object bean, String beanName)
     Apply this BeanPostProcessor to the given new bean instance after any bean initialization callbacks (like InitializingBean's afterPropertiesSet or a custom init-method).
 ObjectpostProcessBeforeInitialization(Object bean, String beanName)
     Apply this BeanPostProcessor to the given new bean instance before any bean initialization callbacks (like InitializingBean's afterPropertiesSet or a custom init-method).



Method Detail
postProcessAfterInitialization
Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException(Code)
Apply this BeanPostProcessor to the given new bean instance after any bean initialization callbacks (like InitializingBean's afterPropertiesSet 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 method, in contrast to all other BeanPostProcessor callbacks.
Parameters:
  bean - the new bean instance
Parameters:
  beanName - the name of the bean the bean instance to use, either the original or a wrapped one
throws:
  org.springframework.beans.BeansException - in case of errors
See Also:   org.springframework.beans.factory.InitializingBean.afterPropertiesSet
See Also:   org.springframework.beans.factory.FactoryBean




postProcessBeforeInitialization
Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException(Code)
Apply this BeanPostProcessor to the given new bean instance before any bean initialization callbacks (like InitializingBean's afterPropertiesSet 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 instance
Parameters:
  beanName - the name of the bean the bean instance to use, either the original or a wrapped one
throws:
  org.springframework.beans.BeansException - in case of errors
See Also:   org.springframework.beans.factory.InitializingBean.afterPropertiesSet



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