Enum StorageError 

#[non_exhaustive]
pub enum StorageError {
    NotFound {
        id: String,
    },
    ConnectionFailed {
        backend: String,
        message: String,
        source: Option<Box<dyn Error + Send + Sync>>,
    },
    SerializationFailed {
        message: String,
        source: Option<Box<dyn Error + Send + Sync>>,
    },
    BackendError {
        backend: String,
        message: String,
        source: Option<Box<dyn Error + Send + Sync>>,
    },
    MigrationFailed {
        backend: String,
        message: String,
        source: Option<Box<dyn Error + Send + Sync>>,
    },
    DataCorruption {
        field: String,
        message: String,
        source: Option<Box<dyn Error + Send + Sync>>,
    },
}

Errors produced by storage backends.

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

Requested entity was not found.

Fields

id: String

Identifier of the missing entity.

ConnectionFailed

Failed to connect to the storage backend.

Fields

backend: String

Backend identifier (e.g., “postgres”, “redis”).

message: String

Human-readable failure description.

source: Option<Box<dyn Error + Send + Sync>>

Lower-level error, if available.

SerializationFailed

Serialization or deserialization failed.

Fields

message: String

Description of the serialization failure.

source: Option<Box<dyn Error + Send + Sync>>

Lower-level error, if available.

BackendError

Backend-specific operational error.

Fields

backend: String

Backend identifier.

message: String

Human-readable error description.

source: Option<Box<dyn Error + Send + Sync>>

Lower-level error, if available.

MigrationFailed

Schema migration failed.

Fields

backend: String

Backend identifier.

message: String

Human-readable failure description.

source: Option<Box<dyn Error + Send + Sync>>

Lower-level error, if available.

DataCorruption

Stored data is malformed or corrupted and cannot be interpreted.

Fields

field: String

Name of the corrupted field (e.g., “session.id”, “message.metadata”).

message: String

Human-readable description of the corruption.

source: Option<Box<dyn Error + Send + Sync>>

Underlying parse or deserialization error, if available.

Trait Implementations

impl Debug for StorageError

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

Formats the value using the given formatter.

impl Display for StorageError

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

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.

impl From<StorageError> for Error

fn from(source: StorageError) -> Self

Converts to this type from the input type.