Enum CacheError 

pub enum CacheError {
    BackendError(String),
    SerializationError(String),
    InvalidationError(String),
    ConfigError(String),
    NotFound,
    InternalError(String),
}

Strongly-typed error enum for multi-tier-cache

Variants

BackendError(String)

Error from a cache backend (Redis, Memcached, etc.)

SerializationError(String)

Error during serialization/deserialization

InvalidationError(String)

Error during cross-instance invalidation

ConfigError(String)

Configuration or initialization error

NotFound

Key not found in cache

InternalError(String)

Internal logic error or unexpected state

Trait Implementations

impl Clone for CacheError

fn clone(&self) -> CacheError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

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.

impl From<RedisError> for CacheError

Available on crate feature redis only.

fn from(err: RedisError) -> Self

Converts to this type from the input type.

impl From<TryFromIntError> for CacheError

fn from(err: TryFromIntError) -> Self

Converts to this type from the input type.