/// <summary>
/// 获取下一行数据。当返回null时为止
/// </summary>
/// <exception cref="IOErrorException">IO错误</exception>
/// <exception cref="CommunicationTimeoutException">通信超时</exception>
/// <exception cref="CommunicationFailException">通信失败</exception>
/// <returns>返回下一行数据</returns>
public RowInfo GetNext()
{
RowInfo[] infos = _client.GetRowsFromScanner(_scannerId, BatchSize, _iep);
if (infos == null || infos.Length == 0)
{
_client.ScannerClose(_scannerId, _iep);
return(null);
}
return(infos[0]);
}