Struct CompressionInfo 

pub struct CompressionInfo {
    pub algorithm: String,
    pub parameters: HashMap<String, String>,
    pub chunk_length: u32,
    pub data_length: u64,
    pub chunks: Vec<ChunkInfo>,
}

CompressionInfo.db metadata parser for Cassandra SSTable compression info

Fields

algorithm: String

Compression algorithm name

parameters: HashMap<String, String>

Compression parameters

chunk_length: u32

Chunk length (block size)

data_length: u64

Data length (uncompressed)

chunks: Vec<ChunkInfo>

Compressed chunks information

Implementations

impl CompressionInfo

pub fn parse(data: &[u8]) -> Result<Self>

Parse CompressionInfo.db file content

pub fn parse_binary(data: &[u8]) -> Result<Self>

Parse legacy binary CompressionInfo.db format (Cassandra 5.0 format)

pub fn get_algorithm(&self) -> CompressionAlgorithm

Get compression algorithm enum from string

pub fn chunk_count(&self) -> usize

Get total number of chunks

pub fn compressed_size(&self) -> u64

Get total compressed size

pub fn compression_ratio(&self) -> f64

Get compression ratio

Trait Implementations

impl Clone for CompressionInfo

fn clone(&self) -> CompressionInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CompressionInfo

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CompressionInfo

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CompressionInfo

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.