public StringDictionaryBuilder Clear()
{
Entries.Clear();
IndicesBuffer.Clear();
NullBitmap.Clear();
NextIndex = 0;
return(this);
}
/// <summary>
/// Get a specific null bitmap value
/// </summary>
public bool NullBitmapValue(short index)
{
if (false) // TODO: has sparse column...
{
return(false);
}
else
{
return(NullBitmap.Get(index - (HasUniqueifier ? 0 : 1)));
}
}
public bool NullBitmapValue(Column column)
{
if (column.NullBit < 1)
{
return(false);
}
else
{
return(NullBitmap.Get(column.NullBit - 1));
}
}
/// <inheritdoc />
public StringDictionaryBuilder Append(string value)
{
if (value == null)
{
NullBitmap.Append(0);
IndicesBuffer.Append(-1); // need something in the indices buffer to make sure it makes sense
NullCount++;
return(this);
}
var temp = new DictionaryEntry(value, Comparer, HashFunction);
if (!Entries.TryGetValue(temp, out var index))
{
index = NextIndex++;
Entries.Add(temp, index);
AppendStringToBuffer(value);
}
NullBitmap.Append(1);
IndicesBuffer.Append(index);
return(this);
}
internal NullBitmap Clone()
{
NullBitmap newBitmap = new NullBitmap();
newBitmap._nullBitmap = _nullBitmap == null ? null : (byte[])_nullBitmap.Clone();
newBitmap._columnsCount = _columnsCount;
return newBitmap;
}
internal bool ReferenceEquals(NullBitmap obj)
{
return object.ReferenceEquals(_nullBitmap, obj._nullBitmap);
}
internal void Snap()
{
_snapshotInBuffs.Clear();
_snapshotInBuffCurrent = 0;
_snapshotInBytesUsed = _stateObj._inBytesUsed;
_snapshotInBytesPacket = _stateObj._inBytesPacket;
_snapshotPendingData = _stateObj._pendingData;
_snapshotErrorTokenReceived = _stateObj._errorTokenReceived;
_snapshotMessageStatus = _stateObj._messageStatus;
// _nullBitmapInfo must be cloned before it is updated
_snapshotNullBitmapInfo = _stateObj._nullBitmapInfo;
_snapshotLongLen = _stateObj._longlen;
_snapshotLongLenLeft = _stateObj._longlenleft;
_snapshotCleanupMetaData = _stateObj._cleanupMetaData;
// _cleanupAltMetaDataSetArray must be cloned bofore it is updated
_snapshotCleanupAltMetaDataSetArray = _stateObj._cleanupAltMetaDataSetArray;
_snapshotHasOpenResult = _stateObj._hasOpenResult;
_snapshotReceivedColumnMetadata = _stateObj._receivedColMetaData;
_snapshotAttentionReceived = _stateObj._attentionReceived;
#if DEBUG
_rollingPend = 0;
_rollingPendCount = 0;
_stateObj._lastStack = null;
Debug.Assert(_stateObj._bTmpRead == 0, "Has partially read data when snapshot taken");
Debug.Assert(_stateObj._partialHeaderBytesRead == 0, "Has partially read header when shapshot taken");
#endif
PushBuffer(_stateObj._inBuff, _stateObj._inBytesRead);
}
public StringDictionaryArray Build(MemoryAllocator allocator)
{
ValueOffsets.Append(Offset);
return(new StringDictionaryArray(IndicesBuffer.Length, Entries.Count, NullBitmap.Build(allocator), IndicesBuffer.Build(allocator),
ValueBuffer.Build(allocator), ValueOffsets.Build(allocator), NullCount));
}
