Add Bean Programmatically to Spring Web App Context

Question

Because of a plug-in architecture, I'm trying to add a bean programmatically to my webapp. I have a Spring bean created through the @Component annotation, and i am implementing the ApplicationContextAware interface.

My override function looks like this:

@Override public void setApplicationContext(ApplicationContext applicationContext)         throws BeansException {      // this fails     this.applicationContext = (GenericWebApplicationContext) applicationContext;  } 

Basically, I can't figure out how to add a bean to the applicationContext object given to setApplicationContext. Can anyone tell me how I am going about this the wrong way?

Ok, this is what i ended up with as the solution:

@Override public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry bdr)         throws BeansException {     BeanDefinition definition = new RootBeanDefinition(             <My Class>.class);      bdr.registerBeanDefinition("<my id>", definition); } 

Answer 1

Here is a simple code:

ConfigurableListableBeanFactory beanFactory = ((ConfigurableApplicationContext) applicationContext).getBeanFactory(); beanFactory.registerSingleton(bean.getClass().getCanonicalName(), bean);