public int RemoveByIdAdvancedParam(ByteBuffer prefixBytes, uint prefixFieldCount,
EnumerationOrder order,
KeyProposition startKeyProposition, ByteBuffer startKeyBytes,
KeyProposition endKeyProposition, ByteBuffer endKeyBytes)
{
using var enumerator = new RelationAdvancedEnumerator <T>(this, prefixBytes, prefixFieldCount,
order, startKeyProposition, startKeyBytes, endKeyProposition, endKeyBytes, 0);
var keysToDelete = new List <ByteBuffer>();
while (enumerator.MoveNext())
{
keysToDelete.Add(enumerator.GetKeyBytes());
}
foreach (var key in keysToDelete)
{
RemoveById(key, true);
}
return(keysToDelete.Count);
}
public long CountWithProposition(ByteBuffer prefixBytes,
KeyProposition startKeyProposition, ByteBuffer startKeyBytes,
KeyProposition endKeyProposition, ByteBuffer endKeyBytes)
{
var keyValueTrProtector = _transaction.TransactionProtector;
if (endKeyProposition == KeyProposition.Included)
{
endKeyBytes = RelationAdvancedEnumerator <T> .FindLastKeyWithPrefix(prefixBytes, endKeyBytes, _kvtr, keyValueTrProtector);
}
keyValueTrProtector.Start();
_kvtr.SetKeyPrefix(prefixBytes);
long startIndex;
long endIndex;
if (endKeyProposition == KeyProposition.Ignored)
{
endIndex = _kvtr.GetKeyValueCount() - 1;
}
else
{
switch (_kvtr.Find(endKeyBytes))
{
case FindResult.Exact:
endIndex = _kvtr.GetKeyIndex();
if (endKeyProposition == KeyProposition.Excluded)
{
endIndex--;
}
break;
case FindResult.Previous:
endIndex = _kvtr.GetKeyIndex();
break;
case FindResult.Next:
endIndex = _kvtr.GetKeyIndex() - 1;
break;
case FindResult.NotFound:
endIndex = -1;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
if (startKeyProposition == KeyProposition.Ignored)
{
startIndex = 0;
}
else
{
switch (_kvtr.Find(startKeyBytes))
{
case FindResult.Exact:
startIndex = _kvtr.GetKeyIndex();
if (startKeyProposition == KeyProposition.Excluded)
{
startIndex++;
}
break;
case FindResult.Previous:
startIndex = _kvtr.GetKeyIndex() + 1;
break;
case FindResult.Next:
startIndex = _kvtr.GetKeyIndex();
break;
case FindResult.NotFound:
startIndex = 0;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
return(Math.Max(0, endIndex - startIndex + 1));
}
