Struct elasticsearch_dsl::search::highlight::DefaultHighlighter

pub struct DefaultHighlighter { /* fields omitted */ }

Highlighting settings can be set on a global level and overridden at the field level

Implementations

impl DefaultHighlighter

pub fn new() -> Self

Creates a new Highlighter instance

pub fn boundary_chars(self, boundary_chars: impl Into<String>) -> Self

A string that contains each boundary character. Defaults to .,!? \t\n.

pub fn boundary_max_scan(self, boundary_max_scan: u32) -> Self

How far to scan for boundary characters. Defaults to 20.

pub fn encoder(self, encoder: Encoder) -> Self

Indicates if the snippet should be HTML encoded.

pub fn force_source(self, force_source: bool) -> Self

Highlight based on the source even if the field is stored separately. Defaults to false.

pub fn fragment_size(self, fragment_size: u32) -> Self

The size of the highlighted fragment in characters. Defaults to 100.

pub fn highlight_query(self, highlight_query: impl Into<Query>) -> Self

Highlight matches for a query other than the search query. This is especially useful if you use a rescore query because those are not taken into account by highlighting by default.

Warning
Elasticsearch does not validate that highlight_query contains the search query in any way so it is possible to define it so legitimate query results are not highlighted. Generally, you should include the search query as part of the highlight_query.

pub fn no_match_size(self, no_match_size: u32) -> Self

The amount of text you want to return from the beginning of the field if there are no matching fragments to highlight. Defaults to 0 (nothing is returned).

pub fn number_of_fragments(self, number_of_fragments: u32) -> Self

The maximum number of fragments to return. If the number of fragments is set to 0, no fragments are returned. Instead, the entire field contents are highlighted and returned. This can be handy when you need to highlight short texts such as a title or address, but fragmentation is not required. If number_of_fragments is 0, fragment_size is ignored. Defaults to 5.

pub fn order(self, order: Order) -> Self

Sorts highlighted fragments by score when set to score. By default, fragments will be output in the order they appear in the field (order: none). Setting this option to score will output the most relevant fragments first. Each highlighter applies its own logic to compute relevancy scores. See the document How highlighters work internally for more details how different highlighters find the best fragments.

pub fn require_field_match(self, require_field_match: bool) -> Self

By default, only fields that contains a query match are highlighted. Set require_field_match to false to highlight all fields. Defaults to true.

pub fn tags(self, tags: impl Into<Tags>) -> Self

Set to styled to use the built-in tag schema or use custom tags

pub fn fvh(self) -> FastVectorHighlighter

Converts Highlighter to specific highlighter

pub fn plain(self) -> PlainHighlighter

Converts Highlighter to specific highlighter

pub fn unified(self) -> UnifiedHighlighter

Converts Highlighter to specific highlighter

Trait Implementations

impl Clone for DefaultHighlighter

fn clone(&self) -> DefaultHighlighter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DefaultHighlighter

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

Formats the value using the given formatter.

impl Default for DefaultHighlighter

fn default() -> DefaultHighlighter

Returns the “default value” for a type.

impl From<DefaultHighlighter> for Highlighter

fn from(highlighter: DefaultHighlighter) -> Self

Performs the conversion.

impl PartialEq<DefaultHighlighter> for DefaultHighlighter

fn eq(&self, other: &DefaultHighlighter) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &DefaultHighlighter) -> bool

This method tests for !=.

impl Serialize for DefaultHighlighter

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DefaultHighlighter