Enum PersistenceError 

pub enum PersistenceError {
    Io(Error),
    Serde(Error),
    NotFound(String),
    Backend(String),
}

Error returned by a SessionPersistence backend.

Variants

Io(Error)

Filesystem or network I/O failed.

Serde(Error)

A snapshot could not be encoded or decoded.

NotFound(String)

No snapshot is stored under the given session id (for backends that distinguish this from an empty load).

Backend(String)

A backend-specific failure (Redis, Firestore, DynamoDB, …).

Trait Implementations

impl Debug for PersistenceError

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

Formats the value using the given formatter.

impl Display for PersistenceError

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

Formats the value using the given formatter.

impl Error for PersistenceError

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 PersistenceError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for PersistenceError

fn from(source: Error) -> Self

Converts to this type from the input type.