code: public int getAnalysisBits()
    {
      int bits = 0;
      if (null != m_firstWalker)
      {    	
        AxesWalker walker = m_firstWalker;
  
        while (null != walker)
        {
          int bit = walker.getAnalysisBits();
          bits |= bit;
          walker = walker.getNextWalker();
        }       
      }
      return bits;
    }
docs: Get the analysis bits for this walker, as defined in the WalkerFactory.
  @return One of WalkerFactory#BIT_DESCENDANT, etc.