Enum StorageError 

#[non_exhaustive]
pub enum StorageError {
    NotFound(String),
    Backend(String),
    Serialization(String),
    Conflict(String),
}

Failure modes common to all storage backends.

Backends map their native errors (a sqlx::Error, a redis::RedisError, a tonic::Status, …) onto these variants so callers never depend on a concrete backend’s error type. The string payloads carry backend-specific detail for logging without leaking the backend’s types into this crate’s public API.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NotFound(String)

The requested entity does not exist in the backend.

Backend(String)

The backend is unreachable or returned a transport/connection failure.

Serialization(String)

Stored bytes could not be encoded to or decoded from the domain type.

Conflict(String)

The write conflicts with existing state (optimistic-concurrency or uniqueness violation).

Trait Implementations

impl Debug for StorageError

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

Formats the value using the given formatter.

impl Display for StorageError

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

Formats the value using the given formatter.

impl Error for StorageError

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.