A decorator may inject metadata about the bean it is decorating

 @Decorator
 class TimestampLogger implements Logger {
     @Inject
     @Delegate
     @Any
     Logger logger;
 
     @Inject
     @Decorated
     Bean<Logger> bean;
 
     void log(String message) {
       ...
    }
 }
 

CDI Lite implementations are not required to provide support for decorators.