Struct parquet::format::CompressionCodec

pub struct CompressionCodec(pub i32);

Supported compression algorithms.

Codecs added in format version X.Y can be read by readers based on X.Y and later. Codec support may vary between readers based on the format version and libraries available at runtime.

See Compression.md for a detailed specification of these algorithms.

Tuple Fields

0: i32

Implementations

impl CompressionCodec

pub const UNCOMPRESSED: CompressionCodec = _

pub const SNAPPY: CompressionCodec = _

pub const GZIP: CompressionCodec = _

pub const LZO: CompressionCodec = _

pub const BROTLI: CompressionCodec = _

pub const LZ4: CompressionCodec = _

pub const ZSTD: CompressionCodec = _

pub const LZ4_RAW: CompressionCodec = _

pub const ENUM_VALUES: &'static [Self] = _

Trait Implementations

impl Clone for CompressionCodec

fn clone(&self) -> CompressionCodec

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CompressionCodec

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

Formats the value using the given formatter.

impl From<&CompressionCodec> for i32

fn from(e: &CompressionCodec) -> i32

Converts to this type from the input type.

impl From<&i32> for CompressionCodec

fn from(i: &i32) -> Self

Converts to this type from the input type.

impl From<Compression> for CompressionCodec

fn from(value: Compression) -> Self

Converts to this type from the input type.

impl From<CompressionCodec> for i32

fn from(e: CompressionCodec) -> i32

Converts to this type from the input type.

impl From<i32> for CompressionCodec

fn from(i: i32) -> Self

Converts to this type from the input type.

impl Hash for CompressionCodec

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 CompressionCodec

fn cmp(&self, other: &CompressionCodec) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for CompressionCodec

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

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl TSerializable for CompressionCodec

fn write_to_out_protocol<T: TOutputProtocol>( &self, o_prot: &mut T ) -> Result<()>

fn read_from_in_protocol<T: TInputProtocol>( i_prot: &mut T ) -> Result<CompressionCodec>

impl TryFrom<CompressionCodec> for Compression

type Error = ParquetError

The type returned in the event of a conversion error.

fn try_from(value: CompressionCodec) -> Result<Self>

Performs the conversion.

impl Copy for CompressionCodec

impl Eq for CompressionCodec

impl StructuralPartialEq for CompressionCodec