code: public void visit(final TextNode pNode) throws TTIOException {
          final long nodeKey = pNode.getDataKey();
          mRtx.moveTo(nodeKey);
          mInOrder.put(mRtx.getNode(), false);
          mDescendants.put(mRtx.getNode(), 1L);
      }
docs: Visiting a {@link TextNode}.
  
  @param pNode
  to be visited
  @throws TTIOException