private void PopulateMissingHashes <T>(DynamoMetadataType table, List <T> items) { var autoIncr = table.Fields.FirstOrDefault(x => x.IsAutoIncrement); if (autoIncr != null) { var seqRequiredPos = new List <int>(); for (int i = 0; i < items.Count; i++) { var item = items[i]; var value = autoIncr.GetValue(item); if (DynamoConverters.IsNumberDefault(value)) { seqRequiredPos.Add(i); } } if (seqRequiredPos.Count == 0) { return; } var nextSequences = Sequences.GetNextSequences(table, seqRequiredPos.Count); for (int i = 0; i < nextSequences.Length; i++) { var pos = seqRequiredPos[i]; autoIncr.SetValue(items[pos], nextSequences[i]); } } }