Enum ScoreMode 

pub enum ScoreMode {
    Complete,
    CompleteNoScores,
    TopScores,
}

Controls whether and how scoring is performed during query execution.

Propagated from the query context down through Weight → ScorerSupplier → Scorer. Implementations use this to skip expensive scoring work when scores aren’t needed. See [[architecture-query-execution#ScoreMode]].

Variants

Complete

Full scoring required. Default for must/should clauses.

CompleteNoScores

No scores needed. Used in filter context (filter/must_not). Implementations skip TF lookup, BM25 computation, and norm loading.

TopScores

Only top-K scores needed. Enables WAND/MaxScore optimizations: skip documents whose max possible contribution cannot enter the top-K heap. See [[architecture-query-execution#Disjunction Execution (Should Clauses)]].

Implementations

impl ScoreMode

pub fn needs_scores(self) -> bool

Whether this mode requires score computation.

Trait Implementations

impl Clone for ScoreMode

fn clone(&self) -> ScoreMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ScoreMode

impl Debug for ScoreMode

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

Formats the value using the given formatter.

impl Eq for ScoreMode

impl PartialEq for ScoreMode

fn eq(&self, other: &ScoreMode) -> 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 ScoreMode