Enum CacheError 

pub enum CacheError {
    KeyNotFound(String),
    InvalidCommand(String),
    ParseError(String),
    IoError(Error),
    CapacityExceeded {
        current: usize,
        max: usize,
    },
    InvalidKey(String),
    InvalidValue(String),
    LockError(String),
}

The main error type for cache operations.

This enum covers all possible error conditions that can occur when interacting with the cache, from key-not-found conditions to I/O errors.

Variants

KeyNotFound(String)

The requested key was not found in the cache.

InvalidCommand(String)

The command received was invalid or malformed.

ParseError(String)

Failed to parse the input buffer or protocol message.

IoError(Error)

An I/O error occurred (network, file, etc.).

CapacityExceeded

The cache has reached its maximum capacity.

Fields

current: usize

max: usize

InvalidKey(String)

The provided key is invalid (empty, too long, etc.).

InvalidValue(String)

The provided value is invalid (too large, etc.).

LockError(String)

A lock could not be acquired (poisoned mutex).

Trait Implementations

impl Debug for CacheError

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

Formats the value using the given formatter.

impl Display for CacheError

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

Formats the value using the given formatter.

impl Error for CacheError

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.

impl From<Error> for CacheError

fn from(err: Error) -> Self

Converts to this type from the input type.