Bend.StepsStageSubset.FindPrev C# (CSharp) Метод

        public KeyValuePair<RecordKey, RecordData> FindPrev(IComparable<RecordKey> keytest, bool equal_ok)
        {
            var nested_keytest = new RecordKeyComparator().appendKeyPart(this.subset_name).appendKeyPart(keytest);
            var rec = next_stage.FindPrev(nested_keytest, equal_ok);

            if (this.subset_name.CompareTo(rec.Key.key_parts[0]) != 0) {
                throw new KeyNotFoundException("SubsetStage.FindPrev: no more records");
            }
            RecordKeyType_RecordKey orig_key = (RecordKeyType_RecordKey)rec.Key.key_parts[1];

            // strip off the prefix

            return new KeyValuePair<RecordKey, RecordData>(orig_key.GetRecordKey(), rec.Value);
        }