BeanPostProcessor (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

org.springframework.beans.factory.config
Interface BeanPostProcessor

All Known Subinterfaces:: DestructionAwareBeanPostProcessor, InstantiationAwareBeanPostProcessor

All Known Implementing Classes:: AbstractAdvisorAutoProxyCreator, AbstractAutoProxyCreator, ActionServletAwareProcessor, AdvisorAdapterRegistrationManager, ApplicationContextAwareProcessor, BeanNameAutoProxyCreator, DefaultAdvisorAutoProxyCreator, ServletContextAwareProcessor, SimpleServletPostProcessor

public interface BeanPostProcessor

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.

Since:: 10.10.2003
Author:: Juergen Hoeller
See Also:: InstantiationAwareBeanPostProcessor, DestructionAwareBeanPostProcessor, ConfigurableBeanFactory.addBeanPostProcessor(org.springframework.beans.factory.config.BeanPostProcessor), BeanFactoryPostProcessor

Method Summary

Object postProcessAfterInitialization(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).

Object postProcessBeforeInitialization(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 Summary
`Object`	`postProcessAfterInitialization(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).
`Object`	`postProcessBeforeInitialization(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

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'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; beanName - the name of the bean
Returns:: the bean instance to use, either the original or a wrapped one
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'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; beanName - the name of the bean
Returns:: the bean instance to use, either the original or a wrapped one
Throws:: BeansException - in case of errors
See Also:: InitializingBean.afterPropertiesSet()