Enum PersistenceError 

#[non_exhaustive]
pub enum PersistenceError {
    NotFound(String),
    SerializationError(String),
    DeserializationError(String),
    IoError(String),
    InvalidDefinition(String),
    MongoError(String),
    ConnectionError(String),
}

Persistence error types

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 graph was not found.

SerializationError(String)

Failed to serialize a graph definition.

DeserializationError(String)

Failed to deserialize a graph definition.

IoError(String)

An I/O error occurred while accessing storage.

InvalidDefinition(String)

The graph definition is invalid.

MongoError(String)

A MongoDB operation failed.

ConnectionError(String)

Failed to connect to the persistence backend.

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.