/// <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]);
}