Struct Uuid

pub struct Uuid;

The extension type for UUID.

Extension name: arrow.uuid.

The storage type of the extension is FixedSizeBinary with a length of 16 bytes.

Note: A specific UUID version is not required or guaranteed. This extension represents UUIDs as FixedSizeBinary(16) with big-endian notation and does not interpret the bytes in any way.

https://arrow.apache.org/docs/format/CanonicalExtensions.html#uuid

Trait Implementations

impl Clone for Uuid

fn clone(&self) -> Uuid

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Uuid

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Uuid

fn default() -> Uuid

Returns the “default value” for a type.

impl ExtensionType for Uuid

const NAME: &'static str = "arrow.uuid"

The name identifying this extension type.

type Metadata = ()

The metadata type of this extension type.

fn metadata(&self) -> &Self::Metadata

Returns a reference to the metadata of this extension type, or &() if if this extension type defines no metadata (Self::Metadata=()).

fn serialize_metadata(&self) -> Option<String>

Returns the serialized representation of the metadata of this extension type, or None if this extension type defines no metadata (Self::Metadata=()).

fn deserialize_metadata( metadata: Option<&str>, ) -> Result<Self::Metadata, ArrowError>

Deserialize the metadata of this extension type from the serialized representation of the metadata. An extension type that defines no metadata should expect None for the serialized metadata and return Ok(()).

fn supports_data_type(&self, data_type: &DataType) -> Result<(), ArrowError>

Returns OK()) iff the given data type is supported by this extension type.

fn try_new( data_type: &DataType, _metadata: Self::Metadata, ) -> Result<Self, ArrowError>

Construct this extension type for a field with the given data type and metadata.

impl From<Uuid> for CanonicalExtensionType

fn from(value: Uuid) -> Self

Converts to this type from the input type.

impl PartialEq for Uuid

fn eq(&self, other: &Uuid) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Uuid

impl StructuralPartialEq for Uuid