Struct CqlTimeuuid

pub struct CqlTimeuuid(/* private fields */);

Represents timeuuid (uuid V1) value

This type has custom comparison logic which follows ScyllaDB/Cassandra semantics. For details, see Ord implementation.

Implementations

impl CqlTimeuuid

Uuid delegate methods

pub fn nil() -> Self

Creates a new nil CqlTimeuuid. See Uuid::nil for details.

pub fn as_bytes(&self) -> &[u8; 16]

Returns byte representation of the CqlTimeuuid. See Uuid::as_bytes for details.

pub fn as_u128(&self) -> u128

Returns a u128 representation of the CqlTimeuuid. See Uuid::as_u128 for details.

pub fn as_fields(&self) -> (u32, u16, u16, &[u8; 8])

Returns a representation of the CqlTimeuuid as a list of its logical fields. See Uuid::as_fields for details.

pub fn as_u64_pair(&self) -> (u64, u64)

Returns a representation of the CqlTimeuuid as a pair of u64 values. See Uuid::as_u64_pair for details.

pub fn from_slice(b: &[u8]) -> Result<Self, Error>

Creates a new CqlTimeuuid from a big-endian byte representation. See Uuid::from_slice for details.

pub fn from_slice_le(b: &[u8]) -> Result<Self, Error>

Creates a new CqlTimeuuid from a little-endian byte representation. See Uuid::from_slice_le for details.

pub fn from_bytes(bytes: [u8; 16]) -> Self

Creates a new CqlTimeuuid from a big-endian byte representation. See Uuid::from_bytes for details.

pub fn from_bytes_le(bytes: [u8; 16]) -> Self

Creates a new CqlTimeuuid from a little-endian byte representation. See Uuid::from_bytes_le for details.

pub fn from_fields(d1: u32, d2: u16, d3: u16, d4: &[u8; 8]) -> Self

Creates a new CqlTimeuuid from a big-endian byte representation of its fields. See Uuid::from_fields for details.

pub fn from_fields_le(d1: u32, d2: u16, d3: u16, d4: &[u8; 8]) -> Self

Creates a new CqlTimeuuid from a little-endian byte representation of its fields. See Uuid::from_fields_le for details.

pub fn from_u128(v: u128) -> Self

Creates a new CqlTimeuuid from a big-endian u128 value. See Uuid::from_u128 for details.

pub fn from_u128_le(v: u128) -> Self

Creates a new CqlTimeuuid from a little-endian u128 value. See Uuid::from_u128_le for details.

pub fn from_u64_pair(high_bits: u64, low_bits: u64) -> Self

Creates a new CqlTimeuuid from a pair of u64 values. See Uuid::from_u64_pair for details.

Trait Implementations

impl AsRef<Uuid> for CqlTimeuuid

fn as_ref(&self) -> &Uuid

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for CqlTimeuuid

fn clone(&self) -> CqlTimeuuid

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CqlTimeuuid

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

Formats the value using the given formatter.

impl<'frame, 'metadata> DeserializeValue<'frame, 'metadata> for CqlTimeuuid

fn type_check(typ: &ColumnType<'_>) -> Result<(), TypeCheckError>

Checks that the column type matches what this type expects.

fn deserialize( typ: &'metadata ColumnType<'metadata>, v: Option<FrameSlice<'frame>>, ) -> Result<Self, DeserializationError>

Deserialize a column value from given serialized representation.

impl Display for CqlTimeuuid

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

Formats the value using the given formatter.

impl From<CqlTimeuuid> for Uuid

fn from(value: CqlTimeuuid) -> Self

Converts to this type from the input type.

impl From<Uuid> for CqlTimeuuid

fn from(value: Uuid) -> Self

Converts to this type from the input type.

impl FromStr for CqlTimeuuid

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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

impl Hash for CqlTimeuuid

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 CqlTimeuuid

Compare two values of timeuuid type.

Cassandra legacy requires:

• converting 8 most significant bytes to date, which is then compared.
• masking off UUID version from the 8 ms-bytes during compare, to treat possible non-version-1 UUID the same way as UUID.
• using signed compare for least significant bits.

fn cmp(&self, other: &Self) -> 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,

Restrict a value to a certain interval.

impl PartialEq for CqlTimeuuid

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for CqlTimeuuid

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl SerializeValue for CqlTimeuuid

fn serialize<'b>( &self, typ: &ColumnType<'_>, writer: CellWriter<'b>, ) -> Result<WrittenCellProof<'b>, SerializationError>

Serializes the value to given CQL type.

impl Copy for CqlTimeuuid

impl Emptiable for CqlTimeuuid

impl Eq for CqlTimeuuid