Struct tantivy::query::Explanation

pub struct Explanation { /* fields omitted */ }

Object describing the score of a given document. It is organized in trees.

.to_pretty_json() can be useful to print out a human readable representation of this tree when debugging a given score.

Implementations

impl Explanation

pub fn new<T: ToString>(description: T, value: Score) -> Explanation

Creates a new explanation object.

pub fn value(&self) -> Score

Returns the value associated to the current node.

pub fn add_detail(&mut self, child_explanation: Explanation)

Add some detail, explaining some part of the current node formula.

Details are treated as child of the current node.

pub fn add_context(&mut self, context: String)

Adds some extra context to the explanation.

pub fn add_const<T: ToString>(&mut self, name: T, value: Score)

Shortcut for self.details.push(Explanation::new(name, value));

pub fn to_pretty_json(&self) -> String

Returns an indented json representation of the explanation tree for debug usage.

Trait Implementations

impl Clone for Explanation

fn clone(&self) -> Explanation

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Explanation

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

Formats the value using the given formatter.

impl Serialize for Explanation

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.