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bleve/search/query/query_match_none.go

65 lines
1.7 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package query
import (
"encoding/json"
"github.com/blevesearch/bleve/index"
"github.com/blevesearch/bleve/mapping"
"github.com/blevesearch/bleve/search"
"github.com/blevesearch/bleve/search/searchers"
)
type MatchNoneQuery struct {
BoostVal float64 `json:"boost,omitempty"`
}
// NewMatchNoneQuery creates a Query which will not
// match any documents in the index.
func NewMatchNoneQuery() *MatchNoneQuery {
return &MatchNoneQuery{
BoostVal: 1.0,
}
}
func (q *MatchNoneQuery) Boost() float64 {
return q.BoostVal
}
func (q *MatchNoneQuery) SetBoost(b float64) Query {
q.BoostVal = b
return q
}
func (q *MatchNoneQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
return searchers.NewMatchNoneSearcher(i)
}
func (q *MatchNoneQuery) Validate() error {
return nil
}
func (q *MatchNoneQuery) Field() string {
return ""
}
func (q *MatchNoneQuery) SetField(f string) Query {
return q
}
func (q *MatchNoneQuery) MarshalJSON() ([]byte, error) {
tmp := map[string]interface{}{
"boost": q.BoostVal,
"match_none": map[string]interface{}{},
}
return json.Marshal(tmp)
}