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query_term.go
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query_term.go
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// 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 bleve
import (
"github.com/blevesearch/bleve/index"
"github.com/blevesearch/bleve/search"
"github.com/blevesearch/bleve/search/searchers"
)
type termQuery struct {
Term string `json:"term"`
FieldVal string `json:"field,omitempty"`
BoostVal float64 `json:"boost,omitempty"`
}
// NewTermQuery creates a new Query for finding an
// exact term match in the index.
func NewTermQuery(term string) *termQuery {
return &termQuery{
Term: term,
BoostVal: 1.0,
}
}
func (q *termQuery) Boost() float64 {
return q.BoostVal
}
func (q *termQuery) SetBoost(b float64) Query {
q.BoostVal = b
return q
}
func (q *termQuery) Field() string {
return q.FieldVal
}
func (q *termQuery) SetField(f string) Query {
q.FieldVal = f
return q
}
func (q *termQuery) Searcher(i index.IndexReader, m *IndexMapping, explain bool) (search.Searcher, error) {
field := q.FieldVal
if q.FieldVal == "" {
field = m.DefaultField
}
return searchers.NewTermSearcher(i, q.Term, field, q.BoostVal, explain)
}
func (q *termQuery) Validate() error {
return nil
}