Struct VariantArrayReader

Namespace

Apache.Arrow.Scalars.Variant

Assembly

Apache.Arrow.Scalars.dll

Zero-copy reader for a variant array value.

public ref struct VariantArrayReader

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.Equals(object, object)

object.GetType()

object.ReferenceEquals(object, object)

Remarks

Binary layout (after the header byte):

[num_elements: 1 or 4 bytes depending on is_large]
[offsets: (num_elements + 1) * offset_size bytes]
[element values: concatenated variant values]

Constructors

VariantArrayReader(ReadOnlySpan<byte>, ReadOnlySpan<byte>)

Creates an array reader from the metadata and the array value buffer.

public VariantArrayReader(ReadOnlySpan<byte> metadata, ReadOnlySpan<byte> value)

Parameters

metadata ReadOnlySpan<byte>

value ReadOnlySpan<byte>

Properties

ElementCount

Gets the number of elements in this array.

public int ElementCount { get; }

Property Value

int

Methods

GetElement(int)

Gets a VariantReader for the element at the given index.

public VariantReader GetElement(int index)

Parameters

index int

Returns

VariantReader