Module query 

Query DSL: AST types, JSON parser, and execution framework.

Implements the Query → BoundQuery → ScorerSupplier → Scorer pipeline from [[architecture-query-execution]]. Queries are parsed from JSON, bound to index-level statistics, then per-segment scorers are built.

See [[query-dsl]] and [[architecture-query-execution|milestone-2]].

Modules

ast

Query expression types — the output of JSON parsing and input to execution.

boolean

BoolQuery: boolean combination of sub-queries.

boost

Boost wrapper: multiplies inner query’s score by a constant factor.

boosting

Boosting query: positive query with score demotion for negative matches.

constant_score

ConstantScoreQuery: wrap a query with a fixed score.

convert

Convert ScoringExpression trees to executable [Query] objects.

dis_max

dis_max query: returns the score from the best-matching sub-query, plus tie_breaker * sum of other matching scores.

exists

ExistsQuery: match documents where a field has a value.

function_score

Function score query: modify query scores using scoring functions.

fuzzy

Fuzzy query: match terms within edit distance (Levenshtein).

match_query

MatchQuery: analyze query text, build bool of term queries.

multi_term

Shared per-segment supplier for constant-score multi-term queries.

nested

Nested query: search within nested object arrays with cross-object isolation.

parser

JSON query parser — converts ES-compatible JSON to ScoringExpression trees.

phrase

MatchPhraseQuery: terms must appear in order at consecutive positions.

prefix

PrefixQuery: match documents containing terms with a given prefix.

range

Range query: match documents where a numeric field falls within a range.

regex_automaton

Adapter from regex_automata::dfa::dense::DFA to fst::Automaton.

regexp

Regexp query: match terms against a regular expression.

script_score

Script score query: custom scoring via compiled expressions.

span

Span queries: positional matching with configurable distance and ordering.

term

TermQuery: exact term match on a field.

wildcard

Wildcard query: match terms using * (any chars) and ? (single char).

Traits

ScorerSupplier

Knows the estimated cost of scoring before a scorer is built.