Trait tantivy::query::Scorer

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

    fn collect(
        &mut self, 
        collector: &mut Collector, 
        delete_bitset_opt: Option<&DeleteBitSet>
    ) { ... }
}

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,
    delete_bitset_opt: Option<&DeleteBitSet>
)

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 R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?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 R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?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<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?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 R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?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 R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?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<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?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,     delete_bitset: Option<&DeleteBitSet> )

Implementors

• impl Scorer for AllScorer

• impl<TScorer, TDocSetExclude> Scorer for Exclude<TScorer, TDocSetExclude> where     TScorer: Scorer,     TDocSetExclude: DocSet + 'static,

• impl<TScorer, TOtherScorer> Scorer for Intersection<TScorer, TOtherScorer> where     TScorer: Scorer,     TOtherScorer: Scorer,

• impl<TReqScorer, TOptScorer, TScoreCombiner> Scorer for RequiredOptionalScorer<TReqScorer, TOptScorer, TScoreCombiner> where     TReqScorer: Scorer,     TOptScorer: Scorer,     TScoreCombiner: ScoreCombiner,

• impl Scorer for EmptyScorer

• impl<TDocSet: DocSet + 'static> Scorer for ConstScorer<TDocSet>

• impl<TScorer, TScoreCombiner> Scorer for Union<TScorer, TScoreCombiner> where     TScoreCombiner: ScoreCombiner,     TScorer: Scorer,