Struct CodecId 

pub struct CodecId(pub u32);

Opaque identifier for a compression/encoding codec.

Use the associated constants (NONE, ZSTD, …) for well-known codecs. Custom codecs should use ids ≥ 1 000 to avoid conflicts with future built-in ids.

Tuple Fields

0: u32

Implementations

impl CodecId

pub const NONE: Self

No codec — data is passed through unmodified.

pub const ZSTD: Self

Zstandard (zstd) compression.

pub const LZ4: Self

LZ4 block compression.

pub const SNAPPY: Self

Snappy compression.

pub const BROTLI: Self

Brotli compression.

pub const ARROW_IPC: Self

Apache Arrow IPC framing/encoding.

pub const GARW: Self

GARW (Generic Arrow Row-Wire) encoding.

pub fn value(self) -> u32

Return the raw numeric value of this id.

Trait Implementations

impl Clone for CodecId

fn clone(&self) -> CodecId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CodecId

impl Debug for CodecId

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

Formats the value using the given formatter.

impl Display for CodecId

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

Formats the value using the given formatter.

impl Eq for CodecId

impl From<CodecId> for u32

fn from(c: CodecId) -> Self

Converts to this type from the input type.

impl From<u32> for CodecId

fn from(v: u32) -> Self

Converts to this type from the input type.

impl Hash for CodecId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for CodecId

fn cmp(&self, other: &CodecId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for CodecId

fn eq(&self, other: &CodecId) -> 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 PartialOrd for CodecId

fn partial_cmp(&self, other: &CodecId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for CodecId