Spring Bean Lifecycle

• Instantiate - First the spring container finds the bean's definition from the XML file and instantiates the bean..

• Populate properties - Using the dependency injection, spring populates all of the properties as specified in the bean definition..

• Set Bean Name - If the bean implements BeanNameAware interface, spring passes the bean's id to setBeanName() method.

• Set Bean factory - If Bean implements BeanFactoryAware interface, spring passes the beanfactory to setBeanFactory() method.

• Pre Initialization - Also called postprocess of bean. If there are any bean BeanPostProcessors associated with the bean, Spring calls postProcesserBeforeInitialization() method.

• Initialize beans - If the bean implements IntializingBean,its afterPropertySet() method is called. If the bean has init method declaration, the specified initialization method is called.

• Post Initialization - If there are any BeanPostProcessors associated with the bean, their postProcessAfterInitialization() methods will be called.

• Ready to use - Now the bean is ready to use by the application.

• Destroy - If the bean implements DisposableBean , it will call the destroy() method .