Struct WkbType 

pub struct WkbType(Metadata);

Well-Known Binary (WKB) [ExtensionType] for geospatial data.

Represents the canonical Arrow Extension Type for storing GeoArrow data.

Tuple Fields

0: Metadata

Implementations

impl WkbType

pub fn new(metadata: Option<Metadata>) -> Self

Constructs a new WkbType with the given Metadata.

If None is provided, default (empty) metadata is used.

Trait Implementations

impl Debug for WkbType

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

Formats the value using the given formatter.

impl Default for WkbType

fn default() -> WkbType

Returns the “default value” for a type.

impl ExtensionType for WkbType

const NAME: &'static str = "geoarrow.wkb"

The name identifying this extension type.

type Metadata = 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.