Enum cdrs_tokio::compression::Compression
source · pub enum Compression {
Lz4,
Snappy,
None,
}
Expand description
Enum which represents a type of compression. Only non-startup frame’s body can be compressed.
Variants§
Implementations§
source§impl Compression
impl Compression
sourcepub fn encode(&self, bytes: &[u8]) -> Result<Vec<u8>, CompressionError>
pub fn encode(&self, bytes: &[u8]) -> Result<Vec<u8>, CompressionError>
It encodes bytes
basing on type of Compression
..
§Examples
use cassandra_protocol::compression::Compression;
let snappy_compression = Compression::Snappy;
let bytes = String::from("Hello World").into_bytes().to_vec();
let encoded = snappy_compression.encode(&bytes).unwrap();
assert_eq!(snappy_compression.decode(encoded).unwrap(), bytes);
sourcepub fn is_compressed(self) -> bool
pub fn is_compressed(self) -> bool
Checks if current compression actually compresses data.
source§impl Compression
impl Compression
sourcepub fn to_protocol_string(self) -> String
pub fn to_protocol_string(self) -> String
It converts Compression
into String
. If compression is None
then empty string will be
returned
pub fn from_protocol_string( protocol_string: &str ) -> Result<Compression, String>
Trait Implementations§
source§impl Clone for Compression
impl Clone for Compression
source§fn clone(&self) -> Compression
fn clone(&self) -> Compression
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for Compression
impl Debug for Compression
source§impl Display for Compression
impl Display for Compression
source§impl<'a> From<&'a str> for Compression
impl<'a> From<&'a str> for Compression
source§fn from(compression_str: &'a str) -> Compression
fn from(compression_str: &'a str) -> Compression
It converts str
into Compression
. If string is neither lz4
nor snappy
then
Compression::None
will be returned
source§impl From<String> for Compression
impl From<String> for Compression
source§fn from(compression_string: String) -> Compression
fn from(compression_string: String) -> Compression
It converts String
into Compression
. If string is neither lz4
nor snappy
then
Compression::None
will be returned
source§impl Hash for Compression
impl Hash for Compression
source§impl Ord for Compression
impl Ord for Compression
source§fn cmp(&self, other: &Compression) -> Ordering
fn cmp(&self, other: &Compression) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl PartialEq for Compression
impl PartialEq for Compression
source§fn eq(&self, other: &Compression) -> bool
fn eq(&self, other: &Compression) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for Compression
impl PartialOrd for Compression
source§fn partial_cmp(&self, other: &Compression) -> Option<Ordering>
fn partial_cmp(&self, other: &Compression) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moreimpl Copy for Compression
impl Eq for Compression
impl StructuralPartialEq for Compression
Auto Trait Implementations§
impl Freeze for Compression
impl RefUnwindSafe for Compression
impl Send for Compression
impl Sync for Compression
impl Unpin for Compression
impl UnwindSafe for Compression
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more