Struct tantivy::query::EmptyWeight

pub struct EmptyWeight;

EmptyWeight is a dummy Weight in which no document matches.

It is useful for tests and handling edge cases.

Trait Implementations

impl Weight for EmptyWeight

fn scorer(&self, _reader: &SegmentReader) -> Result<Box<Scorer>>

Returns the scorer for the given segment. See Query.

fn count(&self, reader: &SegmentReader) -> Result<u32>

Returns the number documents within the given SegmentReader.