Struct arrow2::io::parquet::write::ZstdLevel

pub struct ZstdLevel(_);

Available on crate feature io_parquet only.

Represents a valid zstd compression level.

Implementations

impl ZstdLevel

pub fn try_new(level: i32) -> Result<ZstdLevel, Error>

Attempts to create a zstd compression level from a given compression level.

Compression levels must be valid (i.e. be acceptable for zstd::compression_level_range).

pub fn compression_level(&self) -> i32

Returns the compression level.

Trait Implementations

impl Clone for ZstdLevel

fn clone(&self) -> ZstdLevel

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ZstdLevel

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

Formats the value using the given formatter.

impl Default for ZstdLevel

fn default() -> ZstdLevel

Returns the “default value” for a type.

impl Hash for ZstdLevel

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

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 PartialEq<ZstdLevel> for ZstdLevel

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for ZstdLevel

impl Eq for ZstdLevel

impl StructuralEq for ZstdLevel

impl StructuralPartialEq for ZstdLevel