Enum ExecuteError 

#[non_exhaustive]
pub enum ExecuteError<DecideErr, StoreErr> {
    Decide(DecideErr),
    Store(StoreErr),
}

Error from a command execute. Two failure domains kept distinct (CLAUDE.md rule 3 — one variant = one domain).

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.

Decide(DecideErr)

The aggregate rejected the command (a domain invariant). Nothing persisted.

Store(StoreErr)

save failed (adapter / codec / conflict / version overflow).

Implementations

impl<DecideErr, StoreErr: ConflictPredicate> ExecuteError<DecideErr, StoreErr>

pub fn is_conflict(&self) -> bool

true iff the save failed on an optimistic-concurrency conflict. Decide is never a conflict (rule 3 — rejection is not retryable).

Trait Implementations

impl<DecideErr: Debug, StoreErr: Debug> Debug for ExecuteError<DecideErr, StoreErr>

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

Formats the value using the given formatter.

impl<DecideErr, StoreErr> Display for ExecuteError<DecideErr, StoreErr>

where DecideErr: Display, StoreErr: Display,

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

Formats the value using the given formatter.

impl<DecideErr, StoreErr> Error for ExecuteError<DecideErr, StoreErr>

where DecideErr: Error + 'static, StoreErr: Error, Self: Debug + Display,

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.