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// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
// MatchNoneQuery returns no documents. It is the inverse of
// MatchAllQuery.
//
// For more details, see
// https://www.elastic.co/guide/en/elasticsearch/reference/5.6/query-dsl-match-all-query.html
type MatchNoneQuery struct {
queryName string
}
// NewMatchNoneQuery creates and initializes a new match none query.
func NewMatchNoneQuery() *MatchNoneQuery {
return &MatchNoneQuery{}
}
// QueryName sets the query name.
func (q *MatchNoneQuery) QueryName(name string) *MatchNoneQuery {
q.queryName = name
return q
}
// Source returns JSON for the match none query.
func (q MatchNoneQuery) Source() (interface{}, error) {
// {
// "match_none" : { ... }
// }
source := make(map[string]interface{})
params := make(map[string]interface{})
source["match_none"] = params
if q.queryName != "" {
params["_name"] = q.queryName
}
return source, nil
}
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