Enum ContractError 

pub enum ContractError {
    InvalidInput(String),
    ExternalDispatchRequired,
    InvalidQueueDelivery(String),
    Conflict,
    OwnershipLost,
    UnknownSession,
    SessionExpired,
    ObsoleteOperation,
    OutOfOrder,
    Busy,
    NotFound,
    Unavailable(String),
}

Expected operation rejection or an adapter failure. Backend errors must not be translated into successful empty acquisitions or lost ownership.

Variants

InvalidInput(String)

ExternalDispatchRequired

Integrated acquisition rejected because the queue requires external dispatch. This exact operation granted no authority and committed no consumer-cursor mutation. Existing completed sequences must replay before checking the route. Only a timely confirmed response permits stopping reconciliation; a transport timeout remains an unknown outcome.

InvalidQueueDelivery(String)

A queue receive positively returned invalid transport data, before any targeted claim or cursor mutation was issued. This stops new broker admission without acknowledging the record. Adapters must not use this for timeouts, network failures, or errors from claim/acknowledgment calls.

Conflict

OwnershipLost

UnknownSession

SessionExpired

ObsoleteOperation

OutOfOrder

Busy

NotFound

Unavailable(String)

Trait Implementations

impl Clone for ContractError

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ContractError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ContractError

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ContractError

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

Formats the value using the given formatter.

impl Eq for ContractError

impl Error for ContractError

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 ContractError

fn from(error: Error) -> Self

Converts to this type from the input type.

impl PartialEq for ContractError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ContractError

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ContractError