020. Spring Bean Life Cycle - dkkahm/study-springfamework5 GitHub Wiki

Starting Up

• Instantiate
• Populate Properties
• Call setBeanName of BeanNameAware
• Call setBeanFactory of BeanFactoryAware
• Call setApplicationContext of ApplicationContextAware
• Preinitialization (Bean PostProcessors)
• afterPropertiesSet of Initializing Beans
• Custom Init Method
• Post Initialization (BeanPostProcessors)
• Bean Ready to Use

Shutting Down

• Container Shutdown
• Disposable Bean's destroy()
• Call Custom Destroy Method
• Terminated

Callback Interfaces

• IntializaingBean.afterPropertiesSet()
• DisposableBean.destroy()

Life Cycle Annotations

• @PostConstructor
  • after the bean has bean constructed, but before its retunred to the requesting object
• @PreDestroy

Bean Post Processors

• Implement interface BeanPostProcessor

Aware Interfaces

• ApplicationContextAware
• ApplicationEventPublisherAware
• BeanClassLoaderAware
• BeanFactoryAware
• BeanNameAware
• BootstrapContextAware
• LoadTimeWeaverAware
• MessageSourceAware
• NotificationPublisherAware
• PortletConfigAware
• PortletContextAware
• ResourceLoaderAware
• ServletConfigAware
• ServletContextAware

LifeCycleDemoBean

@Component
public class LifeCycleDemoBean implements InitializingBean, DisposableBean, BeanNameAware, BeanFactoryAware, ApplicationContextAware {
    @Override
    ....

   @PostConstruct
   ....

   @PreDestroy
   ....