Class: JayAPI::Elasticsearch::QueryBuilder::QueryClauses::Negator

Inherits:
Object
  • Object
show all
Defined in:
lib/jay_api/elasticsearch/query_builder/query_clauses/negator.rb

Overview

A class capable of negating any QueryClause object

Constant Summary collapse

INVERSE_CLAUSES =

A mapping between QueryClause classes and their corresponding inverse clauses. Only some of the clauses can be directly inverted.

{
  ::JayAPI::Elasticsearch::QueryBuilder::QueryClauses::MatchAll =>
    ::JayAPI::Elasticsearch::QueryBuilder::QueryClauses::MatchNone,
  ::JayAPI::Elasticsearch::QueryBuilder::QueryClauses::MatchNone =>
    ::JayAPI::Elasticsearch::QueryBuilder::QueryClauses::MatchAll
}.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(query_clause) ⇒ Negator

Returns a new instance of Negator.

Parameters:



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# File 'lib/jay_api/elasticsearch/query_builder/query_clauses/negator.rb', line 26

def initialize(query_clause)
  @query_clause = query_clause
end

Instance Attribute Details

#query_clause ⇒ Object (readonly)

Returns the value of attribute query_clause.



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# File 'lib/jay_api/elasticsearch/query_builder/query_clauses/negator.rb', line 22

def query_clause
  @query_clause
end

Instance Method Details

#negate ⇒ JayAPI::Elasticsearch::QueryBuilder::QueryClauses::QueryClause

Returns The negated version of the given QueryClause.

Returns:



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# File 'lib/jay_api/elasticsearch/query_builder/query_clauses/negator.rb', line 32

def negate
  @negate ||= INVERSE_CLAUSES[query_clause.class]&.new ||
              ::JayAPI::Elasticsearch::QueryBuilder::QueryClauses::Bool.new.must_not do |bool_query|
                bool_query << query_clause
              end
end