Enum RequestError

#[non_exhaustive]
pub enum RequestError {
    EmptyPlan,
    ConnectionPoolError(ConnectionPoolError),
    RequestTimeout(Duration),
    LastAttemptError(RequestAttemptError),
}

An error that occurred during execution of

• QUERY
• PREPARE
• EXECUTE
• BATCH

request. This error represents a definite request failure, unlike RequestAttemptError which represents a failure of a single attempt.

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.

EmptyPlan

Load balancing policy returned an empty plan.

ConnectionPoolError(ConnectionPoolError)

Selected node’s connection pool is in invalid state.

RequestTimeout(Duration)

Failed to run a request within a provided client timeout.

LastAttemptError(RequestAttemptError)

Failed to execute request.

Implementations

impl RequestError

pub fn into_execution_error(self) -> ExecutionError

Trait Implementations

impl Clone for RequestError

fn clone(&self) -> RequestError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RequestError

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

Formats the value using the given formatter.

impl Display for RequestError

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

Formats the value using the given formatter.

impl Error for RequestError

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<ConnectionPoolError> for RequestError

fn from(source: ConnectionPoolError) -> Self

Converts to this type from the input type.

impl From<RequestAttemptError> for RequestError

fn from(source: RequestAttemptError) -> Self

Converts to this type from the input type.

impl From<RequestError> for NextPageError

fn from(source: RequestError) -> Self

Converts to this type from the input type.