Struct DataFrame 

pub struct DataFrame { /* private fields */ }

One ordered Arrow IPC data frame.

Debug reports the sequence, row count, and encoded length. The bytes are released rows, so they never reach a log line through this type.

Implementations

impl DataFrame

pub fn try_new( sequence: u64, rows: u64, arrow_ipc: Vec<u8>, ) -> Result<Self, ModelError>

Validates one ordered opaque Arrow IPC data frame.

Errors

Returns ModelError::Bounds for an empty or over-bound frame.

pub const fn sequence(&self) -> u64

Returns the zero-based frame sequence.

pub const fn rows(&self) -> u64

Returns the number of rows encoded in the frame.

pub fn arrow_ipc(&self) -> &[u8]

Returns opaque Arrow IPC record-batch bytes.

Trait Implementations

impl Clone for DataFrame

fn clone(&self) -> DataFrame

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataFrame

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

Formats the value using the given formatter.

impl Eq for DataFrame

impl PartialEq for DataFrame

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DataFrame