/// <summary> /// Get the specified columns /// </summary> /// <param name="rowKey">rowkey</param> /// <param name="columns">columns</param> /// <exception cref="IOErrorException"></exception> /// <exception cref="ArgumentNullException"></exception> /// <exception cref="CommunicationTimeoutException"></exception> /// <exception cref="CommunicationFailException"></exception> /// <returns></returns> public RowInfo GetRow(byte[] rowKey, List <string> columns) { if (rowKey == null || rowKey.Length == 0) { throw new ArgumentNullException("rowKey"); } if (columns == null || columns.Count == 0) { return(GetRow(rowKey)); } IPEndPoint iep = _regionManager.GetRegionByRowKey(rowKey); RowInfo[] infos = _client.GetRowWithColumnsFromTable(TableName, rowKey, columns.ToArray(), iep); if (infos == null || infos.Length == 0) { return(null); } return(infos[0]); }