public Enumerator enumerator()

in src/main/java/net/hydromatic/linq4j/Linq4j.java [477:510]

• 29 lines of code
• 4 McCabe index (conditional complexity)

    public Enumerator<E> enumerator() {
      return new Enumerator<E>() {
        // Never null.
        Enumerator<E> current = emptyEnumerator();

        public E current() {
          return current.current();
        }

        public boolean moveNext() {
          for (;;) {
            if (current.moveNext()) {
              return true;
            }
            current.close();
            if (!enumerableEnumerator.moveNext()) {
              current = emptyEnumerator();
              return false;
            }
            current = enumerableEnumerator.current().enumerator();
          }
        }

        public void reset() {
          enumerableEnumerator.reset();
          current = emptyEnumerator();
        }

        public void close() {
          current.close();
          current = emptyEnumerator();
        }
      };
    }