elasticsearch_dsl/search/queries/
match_none_query.rs

1use super::Query;
2use crate::util::*;
3
4/// This is the inverse of the [`match_all`](crate::queries::MatchAllQuery)
5/// query, which matches no documents.
6///
7/// To create match_none query:
8/// ```
9/// # use elasticsearch_dsl::queries::*;
10/// # use elasticsearch_dsl::queries::params::*;
11/// # let query =
12/// Query::match_none()
13///     .boost(2)
14///     .name("matches_nothing");
15/// ```
16/// <https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-all-query.html>
17#[derive(Debug, Clone, PartialEq, Serialize, Default)]
18#[serde(remote = "Self")]
19pub struct MatchNoneQuery {
20    #[serde(skip_serializing_if = "ShouldSkip::should_skip")]
21    boost: Option<f32>,
22
23    #[serde(skip_serializing_if = "ShouldSkip::should_skip")]
24    _name: Option<String>,
25}
26
27impl Query {
28    /// Creates an instance of [`MatchNoneQuery`]
29    pub fn match_none() -> MatchNoneQuery {
30        MatchNoneQuery::default()
31    }
32}
33
34impl MatchNoneQuery {
35    add_boost_and_name!();
36}
37
38serialize_with_root!("match_none": MatchNoneQuery);
39
40impl ShouldSkip for MatchNoneQuery {}
41
42#[cfg(test)]
43mod tests {
44    use super::*;
45
46    #[test]
47    fn serialization() {
48        assert_serialize_query(Query::match_none(), json!({"match_none": {} }));
49
50        assert_serialize_query(
51            Query::match_none().boost(2).name("test"),
52            json!({ "match_none": { "boost": 2.0, "_name": "test" } }),
53        );
54    }
55}
elasticsearch_dsl/search/queries/match_none_query.rs

elasticsearch_dsl/search/queries/
match_none_query.rs
