Trait tantivy::query::Scorer

pub trait Scorer: Any + DocSet + 'static {
    fn score(&mut self) -> Score;

    fn collect(&mut self, collector: &mut Collector) { ... }
}

Scored set of documents matching a query within a specific segment.

See Query.

Required Methods

fn score(&mut self) -> Score

Returns the score.

This method will perform a bit of computation and is not cached.

Provided Methods

fn collect(&mut self, collector: &mut Collector)

Consumes the complete DocSet and push the scored documents to the collector.

Methods

impl Scorer

pub fn is<_T>(&self) -> bool where
    _T: Any,
    Self: Downcast<_T>, 

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

pub unsafe fn downcast_ref_unchecked<_T>(&self) -> &_T where
    _T: Any,
    Self: Downcast<_T>, 

pub fn downcast_ref<_T>(&self) -> Result<&_T, TypeMismatch> where
    _T: Any,
    Self: Downcast<_T>, 

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

pub unsafe fn downcast_mut_unchecked<_T>(&mut self) -> &mut _T where
    _T: Any,
    Self: Downcast<_T>, 

pub fn downcast_mut<_T>(&mut self) -> Result<&mut _T, TypeMismatch> where
    _T: Any,
    Self: Downcast<_T>, 

Important traits for Box<W>

impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

pub unsafe fn downcast_unchecked<_T>(self: Box<Self>) -> Box<_T> where
    _T: Any,
    Self: Downcast<_T>, 

pub fn downcast<_T>(
    self: Box<Self>
) -> Result<Box<_T>, DowncastError<Box<Self>>> where
    _T: Any,
    Self: Downcast<_T>, 

Trait Implementations

impl<_T: Any> Downcast<_T> for Scorer where
    _T: Any, 

fn is_type(&self) -> bool

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

unsafe fn downcast_ref_unchecked(&self) -> &T

fn downcast_ref(&self) -> Result<&T, TypeMismatch>

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

unsafe fn downcast_mut_unchecked(&mut self) -> &mut T

fn downcast_mut(&mut self) -> Result<&mut T, TypeMismatch>

Important traits for Box<W>

impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

unsafe fn downcast_unchecked(self: Box<Self>) -> Box<T>

fn downcast(self: Box<Self>) -> Result<Box<T>, DowncastError<Box<Self>>>

Implementations on Foreign Types

impl Scorer for Box<Scorer>

fn score(&mut self) -> Score

fn collect(&mut self, collector: &mut Collector)

Implementors

• impl Scorer for EmptyScorer
• impl<TDocSet: DocSet + 'static> Scorer for ConstScorer<TDocSet>
• impl Scorer for AllScorer
• impl<TScorer, TDocSetExclude> Scorer for Exclude<TScorer, TDocSetExclude> where
    TScorer: Scorer,
    TDocSetExclude: DocSet + 'static, 
• impl<TScorer, TScoreCombiner> Scorer for Union<TScorer, TScoreCombiner> where
    TScoreCombiner: ScoreCombiner,
    TScorer: Scorer, 
• impl<TScorer> Scorer for Intersection<TScorer> where
    TScorer: Scorer, 
• impl<TReqScorer, TOptScorer, TScoreCombiner> Scorer for RequiredOptionalScorer<TReqScorer, TOptScorer, TScoreCombiner> where
    TReqScorer: Scorer,
    TOptScorer: Scorer,
    TScoreCombiner: ScoreCombiner,