Enum TransactionalProjectionError 

#[non_exhaustive]
pub enum TransactionalProjectionError {
    LeadershipBusy,
    LeadershipLost {
        source: BoxedProjectionError,
    },
    Source {
        source: BoxedProjectionError,
    },
    Decode {
        position: DeliveryPosition,
        source: BoxedProjectionError,
    },
    Application {
        position: DeliveryPosition,
        source: BoxedProjectionError,
    },
    RetryExhausted {
        position: DeliveryPosition,
        attempts: u32,
        source: BoxedProjectionError,
    },
    Progress {
        position: DeliveryPosition,
        source: BoxedProjectionError,
    },
    ProgressStore {
        source: BoxedProjectionError,
    },
    CommitIndeterminate {
        position: DeliveryPosition,
        source: BoxedProjectionError,
    },
    SourceIdentityMismatch {
        projector: ProjectorName,
        persisted: DeliverySourceId,
        configured: DeliverySourceId,
    },
    SelectionIdentityMismatch {
        projector: ProjectorName,
        persisted: ProjectionSelectionId,
        configured: ProjectionSelectionId,
    },
    Configuration {
        source: ProjectionConfigurationError,
    },
    AfterCommitFailed {
        committed_position: DeliveryPosition,
        source: BoxedProjectionError,
    },
}

Terminal failures from a transactional projection run.

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.

LeadershipBusy

Another process owns this projector’s read-model leadership lock.

LeadershipLost

The leader session was lost and can no longer authorize writes.

Fields

source: BoxedProjectionError

Underlying database error.

Source

The event source could not provide a page or high-water mark.

Fields

source: BoxedProjectionError

Underlying source error.

Decode

A selected persisted payload could not decode into the application’s event contract.

Fields

position: DeliveryPosition

Position of the malformed selected envelope.

source: BoxedProjectionError

Underlying deserialization error.

Application

The projector chose the Fatal decision for an application error.

Fields

position: DeliveryPosition

Failed position.

source: BoxedProjectionError

Underlying application error.

RetryExhausted

Retry attempts were exhausted without committing the event effect.

Fields

position: DeliveryPosition

Failed position.

attempts: u32

Total application invocations, including the initial attempt.

source: BoxedProjectionError

Last application error.

Progress

Progress could not be loaded or advanced for the pending delivery position.

Fields

position: DeliveryPosition

Delivery position whose transaction remains pending.

source: BoxedProjectionError

Underlying database error.

ProgressStore

A progress storage operation without a pending delivery position failed.

Fields

source: BoxedProjectionError

Underlying database error.

CommitIndeterminate

PostgreSQL did not acknowledge the commit, so durable state must be inspected on recovery.

Fields

position: DeliveryPosition

Position whose transaction may or may not have committed.

source: BoxedProjectionError

Underlying database error.

SourceIdentityMismatch

Existing progress belongs to a different delivery source.

Fields

projector: ProjectorName

Projector whose durable identity was incompatible.

persisted: DeliverySourceId

Source identity persisted with durable progress.

configured: DeliverySourceId

Source identity configured for this invocation.

SelectionIdentityMismatch

Existing progress belongs to a different projection selection.

Fields

projector: ProjectorName

Projector whose durable identity was incompatible.

persisted: ProjectionSelectionId

Selection identity persisted with durable progress.

configured: ProjectionSelectionId

Selection identity configured for this invocation.

Configuration

Configuration cannot safely start a projection.

Fields

source: ProjectionConfigurationError

Invalid configuration detail.

AfterCommitFailed

A confirmed commit succeeded but its after-commit action failed.

Fields

committed_position: DeliveryPosition

Already committed position.

source: BoxedProjectionError

Underlying hook error.

Trait Implementations

impl Debug for TransactionalProjectionError

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

Formats the value using the given formatter.

impl Display for TransactionalProjectionError

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

Formats the value using the given formatter.

impl Error for TransactionalProjectionError

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.