Enum QueryError 

pub enum QueryError {
    AuthorizationFailed {
        reason: String,
    },
    MissingCapability {
        capability: String,
    },
    ExecutionError {
        reason: String,
    },
    ParseError(QueryParseError),
    SubscriptionNotFound {
        query_id: String,
    },
    JournalError {
        reason: String,
    },
    HandlerUnavailable,
    Internal {
        reason: String,
    },
    ConsensusTimeout {
        consensus_id: ConsensusId,
    },
    SnapshotNotAvailable {
        prestate_hash: Hash32,
    },
    IsolationNotSupported {
        reason: String,
    },
}

Error type for query operations

Variants

AuthorizationFailed

Authorization failed

Fields

reason: String

MissingCapability

Missing required capability

Fields

capability: String

ExecutionError

Datalog execution error

Fields

reason: String

ParseError(QueryParseError)

Result parsing error

SubscriptionNotFound

Query not found (for subscriptions)

Fields

query_id: String

JournalError

Journal access error

Fields

reason: String

HandlerUnavailable

Handler not available

Internal

Internal error

Fields

reason: String

ConsensusTimeout

Consensus wait timeout

Fields

consensus_id: ConsensusId

SnapshotNotAvailable

Snapshot not available (garbage collected)

Fields

prestate_hash: Hash32

IsolationNotSupported

Isolation level not supported

Fields

reason: String

Implementations

impl QueryError

pub fn authorization_failed(reason: impl Into<String>) -> Self

Create an authorization failed error

pub fn missing_capability(cap: &QueryCapability) -> Self

Create a missing capability error

pub fn execution_error(reason: impl Into<String>) -> Self

Create an execution error

pub fn journal_error(reason: impl Into<String>) -> Self

Create a journal error

pub fn internal(reason: impl Into<String>) -> Self

Create an internal error

pub fn consensus_timeout(consensus_id: ConsensusId) -> Self

Create a consensus timeout error

pub fn snapshot_not_available(prestate_hash: Hash32) -> Self

Create a snapshot not available error

pub fn isolation_not_supported(reason: impl Into<String>) -> Self

Create an isolation not supported error

Trait Implementations

impl Clone for QueryError

fn clone(&self) -> QueryError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QueryError

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for QueryError

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

Formats the value using the given formatter.

impl Error for QueryError

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<QueryError> for AuraError

fn from(err: QueryError) -> Self

Converts to this type from the input type.

impl From<QueryParseError> for QueryError

fn from(source: QueryParseError) -> Self

Converts to this type from the input type.

impl Serialize for QueryError

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

where __S: Serializer,

Serialize this value into the given Serde serializer.