Enum CommittedOperationReadError 

#[non_exhaustive]
pub enum CommittedOperationReadError {
    Limit {
        limit: usize,
        max: usize,
    },
    Store(DurabilityError),
    Retired {
        conversation_id: u64,
    },
    RoutedStream(RoutedStreamRefusal),
    MissingFlatRow {
        sequence: u64,
        native_head: u64,
    },
    Sequence {
        expected: u64,
        actual: u64,
    },
    SequenceOverflow {
        from_sequence: u64,
    },
}

Why a page of committed operations could not be read.

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.

Limit

The page limit is zero or above COMMITTED_OPERATION_PAGE_MAX.

Fields

limit: usize

The limit asked for.

max: usize

The largest limit a page accepts.

Store(DurabilityError)

The durable store refused a read.

Retired

The conversation is retired; its log is never reopened (DUR-027 R4).

Fields

conversation_id: u64

The retired conversation.

RoutedStream(RoutedStreamRefusal)

The routed tail’s head or a routed row was refused.

MissingFlatRow

A flat row below the native head was absent.

Fields

sequence: u64

The first sequence the read asked for.

native_head: u64

The flat stream’s exclusive head.

Sequence

A row answered out of order.

Fields

expected: u64

The sequence the page required next.

actual: u64

The sequence the store answered.

SequenceOverflow

A sequence in the page does not fit its encoded width.

Fields

from_sequence: u64

The page’s first sequence.

Trait Implementations

impl Debug for CommittedOperationReadError

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

Formats the value using the given formatter.

impl Display for CommittedOperationReadError

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

Formats the value using the given formatter.

impl Error for CommittedOperationReadError

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<DurabilityError> for CommittedOperationReadError

fn from(source: DurabilityError) -> Self

Converts to this type from the input type.