Enum ApplicationLifecycleError 

#[non_exhaustive]
pub enum ApplicationLifecycleError {
    InvalidComponentLabel(String),
    DuplicateComponent(String),
    UnknownComponent(String),
    TooManyComponents,
    InvalidTransition {
        from: ApplicationPhase,
        to: ApplicationPhase,
    },
    StateUnavailable,
    InvalidDrainWait,
    DrainTimedOut {
        in_flight: usize,
    },
    RequestCapacityExhausted,
    RequestNotAdmitted {
        phase: ApplicationPhase,
    },
}

Typed lifecycle construction, transition, and drain failures.

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.

InvalidComponentLabel(String)

A readiness component label is empty, too long, or ambiguous.

DuplicateComponent(String)

A readiness component was registered more than once.

UnknownComponent(String)

The readiness component is not part of the immutable registry.

TooManyComponents

Too many readiness components were requested.

InvalidTransition

A transition would move the lifecycle backwards.

Fields

from: ApplicationPhase

Current phase.

to: ApplicationPhase

Requested phase.

StateUnavailable

The readiness registry lock was poisoned and is denied rather than trusted.

InvalidDrainWait

A drain wait must have a bounded, non-zero deadline.

DrainTimedOut

Accepted requests remained active until the configured deadline.

Fields

in_flight: usize

Number of requests still executing when the deadline elapsed.

RequestCapacityExhausted

The in-flight counter cannot safely accept another request.

RequestNotAdmitted

Startup, a dependency gate, or draining currently denies admission.

Fields

phase: ApplicationPhase

Phase observed when admission was denied.

Trait Implementations

impl Clone for ApplicationLifecycleError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ApplicationLifecycleError

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

Formats the value using the given formatter.

impl Display for ApplicationLifecycleError

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

Formats the value using the given formatter.

impl Eq for ApplicationLifecycleError

impl Error for ApplicationLifecycleError

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<ApplicationLifecycleError> for ServerError

fn from(source: ApplicationLifecycleError) -> Self

Converts to this type from the input type.

impl PartialEq for ApplicationLifecycleError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ApplicationLifecycleError