Enum StoreError 

pub enum StoreError {
    Backend(String),
    ChainBroken {
        stream: String,
        writer: String,
        seq: u64,
        detail: String,
    },
    NonMonotonicGeneration {
        key: String,
        current: u64,
        attempted: u64,
    },
    MalformedRow(String),
}

Errors raised by the store substrate.

Backend-specific failures (rusqlite, and later postgres) are flattened into StoreError::Backend with a stringified detail, so callers never have to match on a backend’s concrete error type — the substrate is the boundary.

Variants

Backend(String)

A backend (SQLite / Postgres) returned an error.

ChainBroken

A crate::WriterLog chain failed verification — the log has been reordered, truncated, or tampered with.

Fields

stream: String

writer: String

seq: u64

detail: String

NonMonotonicGeneration

A generation counter was asked to move backwards. Generations are monotonic by contract — wall-clock time is never a coordination primitive here.

Fields

key: String

current: u64

attempted: u64

MalformedRow(String)

A stored value had an unexpected shape (e.g. a hash column that was not exactly 32 bytes).

Trait Implementations

impl Debug for StoreError

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

Formats the value using the given formatter.

impl Display for StoreError

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

Formats the value using the given formatter.

impl Error for StoreError

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 StoreError

fn from(e: Error) -> Self

Converts to this type from the input type.