Spring 3.1's @import & ImportBeanDefinitionRegistrar

EnableHello.java

    @Retention(value = RetentionPolicy.RUNTIME)
    @Import(HeloIBDR.class)
    public @interface EnableHello {
        String name();
    }

HeloIBDR.java

    public class HeloIBDR implements ImportBeanDefinitionRegistrar {

        @Override
        public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata, BeanDefinitionRegistry registry) {
            BeanDefinition bd = new RootBeanDefinition(Hello.class);
            bd.getPropertyValues().addPropertyValue("name", "keesun");
            registry.registerBeanDefinition("hello", bd);
        }
    }