Struct UnknownLeaderEpochError 

pub struct UnknownLeaderEpochError { /* private fields */ }

The leader epoch in the request is newer than the epoch on the broker.

Corresponds to Java’s UnknownLeaderEpochException, error code Errors::UnknownLeaderEpoch.

Java extends chain: UnknownLeaderEpochException -> RetriableException -> ApiException -> KafkaException

Implementations

impl UnknownLeaderEpochError

pub fn new(message: impl Into<String>) -> Self

Create the error with the given message and no cause, mirroring Java’s (String message) constructor.

This keeps the plain name under CLAUDE.md §2: the dominant Java shape among the classes this macro declares is (String message) + (String message, Throwable cause), whose parameter-name intersection is {message} — matched exactly by (String message).

pub fn with_source(message: impl Into<String>, source: Error) -> Self

Create the error with the given message and an underlying cause, mirroring Java’s (String message, Throwable cause) constructor.

Suffixed with the one parameter beyond the {message} intersection (CLAUDE.md §2) — see new.

pub fn with_default_message() -> Self

Create the error with the default message for its error code, mirroring Java’s Errors.exception().

Not a constructor overload, so CLAUDE.md §2’s suffixing does not apply: it translates the Errors static factory, which fills in Errors.message() and has no Java constructor counterpart.

pub fn message(&self) -> &str

The error message.

pub fn source(&self) -> Option<&Error>

The underlying cause, if any. Mirrors Java’s getCause().

Trait Implementations

impl Clone for UnknownLeaderEpochError

fn clone(&self) -> UnknownLeaderEpochError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnknownLeaderEpochError

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

Formats the value using the given formatter.

impl Display for UnknownLeaderEpochError

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

Formats the value using the given formatter.

impl Error for UnknownLeaderEpochError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.