Struct CsrMatrixExtension 

pub struct CsrMatrixExtension { /* private fields */ }

ndarrow.csr_matrix extension type.

Implementations

impl CsrMatrixExtension

pub fn value_type(&self) -> &DataType

Returns the value type stored in the CSR values buffer.

pub fn ncols(&self) -> usize

Returns the number of columns in the sparse matrix.

Trait Implementations

impl Clone for CsrMatrixExtension

fn clone(&self) -> CsrMatrixExtension

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CsrMatrixExtension

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

Formats the value using the given formatter.

impl ExtensionType for CsrMatrixExtension

const NAME: &'static str = "ndarrow.csr_matrix"

The name identifying this extension type.

type Metadata = CsrMatrixMetadata

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.

fn try_new_from_field_metadata( data_type: &DataType, metadata: &HashMap<String, String>, ) -> Result<Self, ArrowError>

Construct this extension type from field metadata and data type.

impl PartialEq for CsrMatrixExtension

fn eq(&self, other: &CsrMatrixExtension) -> 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 StructuralPartialEq for CsrMatrixExtension