code: void setDelete(
      GBSNode      deleteNode,
      int          deleteIndex)
    {
      _deleteNode  = deleteNode;
      _deleteIndex = deleteIndex;
      _notFound = false;
    }
docs: Remember the information about the delete point.
  
  @param deleteNode The node in which the object resides.
  @param deleteIndex The index within the node to the entry to
  be deleted.