Java 8 Stream of Super Classes, Parent Files, Component Parents, linked list, etc

Question

I would like to convert the following for statement to a Java 8 stream (i.e. Stream>). The ideal solution would be simple eno

Answer 1

Here's the same code as presented in the question but implemented using a Spliterator. I am hoping someone can come up with a simpler, smarter answer.

  Class clazz;
  Object value;

  value = ...;

  >walkLinks(value.getClass(), Class::getSuperclass).
     ...


public static  Stream walkLinks(T start, Function next)
{
   WalkLinks walker;
   Stream result;

   walker = new WalkLinks<>(start, next);
   result = StreamSupport.stream(walker, false);

   return(result);
}

private static class WalkLinks extends Spliterators.AbstractSpliterator
{
   private final Function m_next;
   private       T              m_value;

   public WalkLinks(T value, Function next)
   {
      super(Long.MAX_VALUE, Spliterator.ORDERED + Spliterator.NONNULL);

      m_value = value;
      m_next  = next;
   }

   @Override
   public boolean tryAdvance(Consumer action)
   {
      if (m_value == null)
         return(false);

      action.accept(m_value);

      m_value = m_next.apply(m_value);

      return(true);
   }
}