85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package search
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import (
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"github.com/couchbaselabs/bleve/index"
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)
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type TermSearcher struct {
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index index.Index
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query *TermQuery
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reader index.TermFieldReader
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scorer *TermQueryScorer
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}
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func NewTermSearcher(index index.Index, query *TermQuery) (*TermSearcher, error) {
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reader, err := index.TermFieldReader([]byte(query.Term), query.Field)
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if err != nil {
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return nil, err
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}
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scorer := NewTermQueryScorer(query, index.DocCount(), reader.Count(), query.Explain)
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return &TermSearcher{
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index: index,
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query: query,
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reader: reader,
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scorer: scorer,
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}, nil
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}
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func (s *TermSearcher) Count() uint64 {
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return s.reader.Count()
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}
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func (s *TermSearcher) Weight() float64 {
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return s.scorer.Weight()
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}
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func (s *TermSearcher) SetQueryNorm(qnorm float64) {
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s.scorer.SetQueryNorm(qnorm)
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}
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func (s *TermSearcher) Next() (*DocumentMatch, error) {
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termMatch, err := s.reader.Next()
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if err != nil {
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return nil, err
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}
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if termMatch == nil {
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return nil, nil
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}
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// score match
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docMatch := s.scorer.Score(termMatch)
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// return doc match
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return docMatch, nil
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}
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func (s *TermSearcher) Advance(ID string) (*DocumentMatch, error) {
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termMatch, err := s.reader.Advance(ID)
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if err != nil {
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return nil, err
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}
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if termMatch == nil {
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return nil, nil
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}
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// score match
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docMatch := s.scorer.Score(termMatch)
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// return doc match
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return docMatch, nil
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}
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func (s *TermSearcher) Close() {
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s.reader.Close()
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}
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