code: @Override
    public NodeLocator createLocator(List<MemcachedNode> nodes) {
          return new KetamaNodeLocator(nodes, getHashAlg(),
                  getKetamaNodeKeyFormat(), getWeights());
      }
docs: /*
  (non-Javadoc)
  
  @see net.spy.memcached.ConnectionFactory#createLocator(java.util.List)