Struct KafkaUuid 

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

128-bit UUID with Kafka-specific encoding semantics.

Implementations

impl KafkaUuid

pub const SIZE: usize = 16

Size in bytes (128 bits).

pub const MAX_BASE64_LEN: usize = 24

Maximum length of a base64 representation (16 bytes → 22 chars + slack).

pub const MAX_RANDOM_RETRIES: u32 = 64

Maximum retries for Self::random before giving up.

pub const ZERO: Self

The nil UUID (all zeros).

pub const ONE: Self

UUID with value 1. Reserved — never returned by Self::random.

pub const METADATA_TOPIC_ID: Self = Self::ONE

Metadata topic ID in KRaft mode (alias for Self::ONE).

pub const fn from_uuid(inner: Uuid) -> Self

Wrap a raw uuid::Uuid.

pub const fn from_parts(msb: u64, lsb: u64) -> Self

Construct from two 64-bit halves (most-significant first).

pub fn random() -> Result<Self>

Generate a random non-reserved type-4 UUID whose base64 form does not start with -. Returns UuidError::RandomExhausted if no candidate is found within Self::MAX_RANDOM_RETRIES attempts.

pub const fn inner(&self) -> &Uuid

Borrow the inner uuid::Uuid.

pub const fn most_significant_bits(self) -> u64

Most-significant 64 bits.

pub const fn least_significant_bits(self) -> u64

Least-significant 64 bits.

pub const fn is_reserved(self) -> bool

true for Self::ZERO and Self::ONE.

pub const fn is_nil(self) -> bool

true if this is the nil (all-zero) UUID.

pub const fn to_bytes(self) -> [u8; 16]

Raw 16-byte representation.

pub fn from_base64(s: &str) -> Result<Self>

Parse from a base64 URL-safe string (no padding).

Trait Implementations

impl Clone for KafkaUuid

fn clone(&self) -> KafkaUuid

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KafkaUuid

impl Debug for KafkaUuid

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

Formats the value using the given formatter.

impl Default for KafkaUuid

fn default() -> Self

Returns the “default value” for a type.

impl Display for KafkaUuid

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

Formats the value using the given formatter.

impl Eq for KafkaUuid

impl From<KafkaUuid> for Uuid

fn from(k: KafkaUuid) -> Self

Converts to this type from the input type.

impl From<Uuid> for KafkaUuid

fn from(u: Uuid) -> Self

Converts to this type from the input type.

impl Hash for KafkaUuid

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 KafkaUuid

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 KafkaUuid

fn eq(&self, other: &KafkaUuid) -> 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 KafkaUuid

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 StructuralPartialEq for KafkaUuid