Enum MaterializationError 

#[non_exhaustive]
pub enum MaterializationError<Error> {
    RequestExceedsLimit {
        field: &'static str,
        requested: usize,
        limit: usize,
    },
    DuplicateCandidate {
        first_index: usize,
        duplicate_index: usize,
    },
    NonMonotonicOrder {
        previous_index: usize,
        index: usize,
    },
    InvalidDropTaxonomy {
        message: &'static str,
    },
    UnexpectedLoaderKey,
    DuplicateLoaderKey,
    LoaderReturnedTooManyRows {
        returned: usize,
        requested: usize,
    },
    Caller(Error),
}

Structural or caller failure from ranked-prefix materialization.

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.

RequestExceedsLimit

One request dimension exceeds its consumer-specific limit.

Fields

field: &'static str

Request dimension.

requested: usize

Requested value.

limit: usize

Consumer limit.

DuplicateCandidate

A candidate key occurs more than once.

Fields

first_index: usize

First occurrence.

duplicate_index: usize

Duplicate occurrence.

NonMonotonicOrder

Caller-provided order keys are not strictly increasing.

Fields

previous_index: usize

Previous index.

index: usize

Current index.

InvalidDropTaxonomy

The caller’s drop taxonomy is not a complete ordinal sequence.

Fields

message: &'static str

Stable validation explanation.

UnexpectedLoaderKey

A loader returned a key outside its requested batch.

DuplicateLoaderKey

A loader returned one key more than once.

LoaderReturnedTooManyRows

A loader returned more rows than the requested batch could contain.

Fields

returned: usize

Number of keyed rows returned by the loader.

requested: usize

Number of keys supplied to the loader.

Caller(Error)

Candidate validation, loading, or classification failed.

Trait Implementations

impl<Error: Debug> Debug for MaterializationError<Error>

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

Formats the value using the given formatter.

impl<Error> Display for MaterializationError<Error>

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

Formats the value using the given formatter.

impl<Error: Eq> Eq for MaterializationError<Error>

impl<Error> Error for MaterializationError<Error>

where Self: Debug + Display,

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<Error: PartialEq> PartialEq for MaterializationError<Error>

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

Equality operator ==.

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

Inequality operator !=.

impl<Error: PartialEq> StructuralPartialEq for MaterializationError<Error>