Enum QueryError 

pub enum QueryError {
    InvalidState {
        expected: &'static str,
        actual: QueryState,
    },
    Bridge(PipelineBridgeError),
    PipelineError {
        pipeline_idx: usize,
    },
    IncompatibleSchemas(String),
    NoPipelines,
    Build(String),
}

Errors from streaming query operations.

Variants

InvalidState

The query is in the wrong state for this operation.

Fields

expected: &'static str

The expected state description.

actual: QueryState

The actual state.

Bridge(PipelineBridgeError)

Bridge error during event submission or control message send.

PipelineError

Pipeline execution failed.

Fields

pipeline_idx: usize

Index of the failed pipeline.

IncompatibleSchemas(String)

Schemas are incompatible (e.g., during hot-swap).

NoPipelines

No pipelines were added to the builder.

Build(String)

Build-time error.

Trait Implementations

impl Debug for QueryError

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

Formats the value using the given formatter.

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<PipelineBridgeError> for QueryError

fn from(source: PipelineBridgeError) -> Self

Converts to this type from the input type.