Spring 3.1's @import, @enable and ImportAware

AppConfig.java

    @Configuration
    @EnableHello(name = "Keesun")
    public class AppConfig {

    }

EnableHello.java

    @Retention(value = RetentionPolicy.RUNTIME)
    @Import(HelloConfig3.class)
    public @interface EnableHello {
        String name();
    }

HelloConfig.java

    @Configuration
    public class HelloConfig implements ImportAware{
        @Bean
        public Hello hello() {
            Hello h = new Hello();
            h.setName("Toby");
            return h;
        }
        
        @Autowired Hello hello;

        @Override
        public void setImportMetadata(AnnotationMetadata importMetadata) {
            String name = (String) importMetadata.getAnnotationAttributes(EnableHello.class.getName()).get("name");
            hello.setName(name);
        }
    }