Enum mz_testdrive::format::avro::Codec

pub enum Codec {
    Null,
    Deflate,
    Snappy,
}

The compression codec used to compress blocks.

Variants

Null

The Null codec simply passes through data uncompressed.

Deflate

The Deflate codec writes the data block using the deflate algorithm as specified in RFC 1951, and typically implemented using the zlib library. Note that this format (unlike the “zlib format” in RFC 1950) does not have a checksum.

Snappy

The Snappy codec uses Google’s Snappy compression library. Each compressed block is followed by the 4-byte, big-endian CRC32 checksum of the uncompressed data in the block.

Implementations

impl Codec

pub fn compress(self, stream: &mut Vec<u8>) -> Result<(), Error>

Compress a stream of bytes in-place.

pub fn decompress(self, stream: &mut Vec<u8>) -> Result<(), Error>

Decompress a stream of bytes in-place.

Trait Implementations

impl Clone for Codec

fn clone(&self) -> Codec

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Codec

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

Formats the value using the given formatter.

impl FromStr for Codec

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Codec, <Codec as FromStr>::Err>

Parses a string s to return a value of this type.

impl PartialEq for Codec

fn eq(&self, other: &Codec) -> 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 ToAvro for Codec

fn avro(self) -> Value

Transforms this value into an Avro-compatible Value.

impl Copy for Codec

impl StructuralPartialEq for Codec