Enum RequestAttemptError

#[non_exhaustive]
pub enum RequestAttemptError {
    SerializationError(SerializationError),
    CqlRequestSerialization(CqlRequestSerializationError),
    UnableToAllocStreamId,
    BrokenConnectionError(BrokenConnectionError),
    BodyExtensionsParseError(FrameBodyExtensionsParseError),
    CqlResultParseError(CqlResultParseError),
    CqlErrorParseError(CqlErrorParseError),
    DbError(DbError, String),
    UnexpectedResponse(CqlResponseKind),
    RepreparedIdChanged {
        statement: String,
        expected_id: Vec<u8>,
        reprepared_id: Vec<u8>,
    },
    RepreparedIdMissingInBatch,
    NonfinishedPagingState,
}

An error that occurred during a single attempt of:

• QUERY
• PREPARE
• EXECUTE
• BATCH

requests. The retry decision is made based on this error.

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.

SerializationError(SerializationError)

Failed to serialize query parameters. This error occurs, when user executes a CQL QUERY request with non-empty parameter’s value list and the serialization of provided values fails during statement preparation.

CqlRequestSerialization(CqlRequestSerializationError)

Failed to serialize CQL request.

UnableToAllocStreamId

Driver was unable to allocate a stream id to execute a query on.

BrokenConnectionError(BrokenConnectionError)

A connection has been broken during query execution.

BodyExtensionsParseError(FrameBodyExtensionsParseError)

Failed to deserialize frame body extensions.

CqlResultParseError(CqlResultParseError)

Received a RESULT server response, but failed to deserialize it.

CqlErrorParseError(CqlErrorParseError)

Received an ERROR server response, but failed to deserialize it.

DbError(DbError, String)

Database sent a response containing some error with a message

UnexpectedResponse(CqlResponseKind)

Received an unexpected response from the server.

RepreparedIdChanged

Prepared statement id changed after repreparation.

Fields

statement: String

expected_id: Vec<u8>

reprepared_id: Vec<u8>

RepreparedIdMissingInBatch

Driver tried to reprepare a statement in the batch, but the reprepared statement’s id is not included in the batch.

NonfinishedPagingState

A result with nonfinished paging state received for unpaged query.

Trait Implementations

impl Clone for RequestAttemptError

fn clone(&self) -> RequestAttemptError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RequestAttemptError

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

Formats the value using the given formatter.

impl Display for RequestAttemptError

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

Formats the value using the given formatter.

impl Error for RequestAttemptError

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<BrokenConnectionError> for RequestAttemptError

fn from(source: BrokenConnectionError) -> Self

Converts to this type from the input type.

impl From<CqlErrorParseError> for RequestAttemptError

fn from(source: CqlErrorParseError) -> Self

Converts to this type from the input type.

impl From<CqlRequestSerializationError> for RequestAttemptError

fn from(source: CqlRequestSerializationError) -> Self

Converts to this type from the input type.

impl From<CqlResultParseError> for RequestAttemptError

fn from(source: CqlResultParseError) -> Self

Converts to this type from the input type.

impl From<Error> for RequestAttemptError

fn from(value: Error) -> Self

Converts to this type from the input type.

impl From<FrameBodyExtensionsParseError> for RequestAttemptError

fn from(source: FrameBodyExtensionsParseError) -> Self

Converts to this type from the input type.

impl From<RequestAttemptError> for ExecutionError

fn from(source: RequestAttemptError) -> Self

Converts to this type from the input type.

impl From<RequestAttemptError> for MetadataFetchErrorKind

fn from(source: RequestAttemptError) -> 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<RequestAttemptError> for SchemaAgreementError

fn from(source: RequestAttemptError) -> Self

Converts to this type from the input type.

impl From<RequestAttemptError> for UseKeyspaceError

fn from(source: RequestAttemptError) -> Self

Converts to this type from the input type.

impl From<SerializationError> for RequestAttemptError

fn from(source: SerializationError) -> Self

Converts to this type from the input type.