protected BuilderBase(IArrowType dataType)
{
DataType = dataType;
ValueOffsets = new ArrowBuffer.Builder <int>();
ValueBuffer = new ArrowBuffer.Builder <byte>();
ValidityBuffer = new ArrowBuffer.BitmapBuilder();
}
internal Builder(ListType dataType)
{
ValueBuilder = ArrowArrayBuilderFactory.Build(dataType.ValueDataType);
ValueOffsetsBufferBuilder = new ArrowBuffer.Builder <int>();
ValidityBufferBuilder = new ArrowBuffer.BitmapBuilder();
DataType = dataType;
}
private ArrowBuffer ConcatenateBitmapBuffer(int bufferIndex)
{
var builder = new ArrowBuffer.BitmapBuilder(_totalLength);
foreach (ArrayData arrayData in _arrayDataList)
{
int length = arrayData.Length;
ReadOnlySpan <byte> span = arrayData.Buffers[bufferIndex].Span;
for (int i = 0; i < length; i++)
{
builder.Append(span.IsEmpty || BitUtility.GetBit(span, i));
}
}
return(builder.Build(_allocator));
}
protected BuilderBase(IArrowType dataType)
{
DataType = dataType;
ValueOffsets = new ArrowBuffer.Builder <int>();
ValueBuffer = new ArrowBuffer.Builder <byte>();
ValidityBuffer = new ArrowBuffer.BitmapBuilder();
// From the docs:
//
// The offsets buffer contains length + 1 signed integers (either 32-bit or 64-bit, depending on the
// logical type), which encode the start position of each slot in the data buffer. The length of the
// value in each slot is computed using the difference between the offset at that slot’s index and the
// subsequent offset.
//
// In this builder, we choose to append the first offset (zero) upon construction, and each trailing
// offset is then added after each individual item has been appended.
ValueOffsets.Append(this.Offset);
}
public Builder()
{
ValueBuffer = new ArrowBuffer.BitmapBuilder();
ValidityBuffer = new ArrowBuffer.BitmapBuilder();
}