Enum FunctionalError 

pub enum FunctionalError {
    TaskFailed {
        task: String,
        attempts: u32,
        message: String,
    },
    SchemaValidation {
        field: String,
        expected: String,
        actual: String,
    },
    Suspended {
        continuation_key: String,
        message: String,
    },
    InterruptTypeMismatch {
        task: String,
        message: String,
    },
    Cancelled,
    CheckpointFailed {
        task: String,
        message: String,
    },
    RunTimeout {
        run_id: String,
        timeout_secs: u64,
    },
    InvalidCronExpression {
        expression: String,
        reason: String,
    },
    CronJobNotFound {
        job_id: String,
    },
    RunNotFound {
        run_id: String,
    },
}

Available on crate feature graph only.

Errors specific to the functional API.

Variants

TaskFailed

Task execution failed after all retry attempts.

Fields

task: String

Name of the failed task.

attempts: u32

Number of attempts made.

message: String

Failure message.

SchemaValidation

State schema validation error.

Fields

field: String

The field that failed validation.

expected: String

The expected type or value.

actual: String

The actual type or value.

Suspended

The workflow suspended at an interrupt and needs a resume value.

continuation_key identifies the interrupt site. Supply the value under that key via TaskContext::with_resume_values and re-invoke the entrypoint; the interrupt call then returns the value instead of this error.

Previously an interrupt always produced InterruptTypeMismatch, so a caller could not tell “needs input” from “the value you gave me was the wrong type” — and there was no key to supply the value under.

Fields

continuation_key: String

Key identifying this interrupt site within the thread.

message: String

The message passed to interrupt.

InterruptTypeMismatch

Interrupt deserialization error (wrong type provided on resume).

Fields

task: String

The task that was interrupted.

message: String

Description of the type mismatch.

Cancelled

Workflow was cancelled via cancellation token.

CheckpointFailed

Checkpoint persistence failure.

Fields

task: String

The task whose checkpoint failed.

message: String

Description of the checkpoint failure.

RunTimeout

Background run timeout exceeded.

Fields

run_id: String

The run identifier.

timeout_secs: u64

The timeout duration in seconds.

InvalidCronExpression

Invalid cron expression.

Fields

expression: String

The invalid cron expression.

reason: String

Reason the expression is invalid.

CronJobNotFound

Cron job not found.

Fields

job_id: String

The job identifier that was not found.

RunNotFound

Background run not found.

Fields

run_id: String

The run identifier that was not found.

Trait Implementations

impl Debug for FunctionalError

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

Formats the value using the given formatter.

impl Display for FunctionalError

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

Formats the value using the given formatter.

impl Error for FunctionalError

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<FunctionalError> for GraphError

fn from(e: FunctionalError) -> GraphError

Converts to this type from the input type.