Enum ShadowOutcome 

pub enum ShadowOutcome {
    Match,
    Mismatch,
    Superseded,
    Filled,
    FillFenced,
    FillError,
    RedisError,
    SourceError,
    DeserializationError,
    ComparisonError,
    ConfirmationError,
    Timeout,
    Dropped,
}

Terminal outcomes of sampled shadow validation.

Variants

Match

The cached and source values compared equal.

Mismatch

They differed, and a confirmation read found the stored payload unchanged.

Superseded

They differed, but the stored payload changed or disappeared before confirmation.

Filled

A clean shadow miss was populated.

FillFenced

A tracked fill was withheld because its stamp did not exceed the watermark observed by the initial read.

FillError

Preparing (encoding, compression) or writing a clean-miss fill failed.

RedisError

The initial detached remote read failed, including by deadline.

SourceError

The source-of-truth read failed.

DeserializationError

The retained payload could not be decoded for comparison.

ComparisonError

The comparator returned an error or panicked.

ConfirmationError

The confirmation remote read failed.

Timeout

The shadow deadline expired before a verdict.

Dropped

Per-key deduplication or the instance’s in-flight cap rejected the job before it started.

Implementations

impl ShadowOutcome

pub fn as_str(self) -> &'static str

The snake_case label value shared with the TypeScript and Go ports and published by the bundled metric exporters.

Trait Implementations

impl Clone for ShadowOutcome

fn clone(&self) -> ShadowOutcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ShadowOutcome

impl Debug for ShadowOutcome

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

Formats the value using the given formatter.

impl Display for ShadowOutcome

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

Formats the value using the given formatter.

impl Eq for ShadowOutcome

impl Hash for ShadowOutcome

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ShadowOutcome

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ShadowOutcome