e188fe35f7
instead of separate DocumentMatch/DocumentMatchInternal rules are simple, everything operates on the IndexInternalID field until the results are returned, then ID is set correctly the IndexInternalID field is not exported to JSON
89 lines
2.5 KiB
Go
89 lines
2.5 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 searchers
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import (
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"github.com/blevesearch/bleve/index"
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"github.com/blevesearch/bleve/search"
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)
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type TermPrefixSearcher struct {
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indexReader index.IndexReader
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prefix string
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field string
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explain bool
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searcher *DisjunctionSearcher
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}
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func NewTermPrefixSearcher(indexReader index.IndexReader, prefix string, field string, boost float64, explain bool) (*TermPrefixSearcher, error) {
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// find the terms with this prefix
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fieldDict, err := indexReader.FieldDictPrefix(field, []byte(prefix))
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// enumerate all the terms in the range
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qsearchers := make([]search.Searcher, 0, 25)
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tfd, err := fieldDict.Next()
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for err == nil && tfd != nil {
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var qsearcher *TermSearcher
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qsearcher, err = NewTermSearcher(indexReader, string(tfd.Term), field, 1.0, explain)
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if err != nil {
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return nil, err
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}
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qsearchers = append(qsearchers, qsearcher)
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tfd, err = fieldDict.Next()
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}
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err = fieldDict.Close()
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if err != nil {
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return nil, err
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}
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// build disjunction searcher of these ranges
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searcher, err := NewDisjunctionSearcher(indexReader, qsearchers, 0, explain)
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if err != nil {
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return nil, err
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}
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return &TermPrefixSearcher{
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indexReader: indexReader,
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prefix: prefix,
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field: field,
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explain: explain,
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searcher: searcher,
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}, nil
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}
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func (s *TermPrefixSearcher) Count() uint64 {
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return s.searcher.Count()
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}
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func (s *TermPrefixSearcher) Weight() float64 {
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return s.searcher.Weight()
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}
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func (s *TermPrefixSearcher) SetQueryNorm(qnorm float64) {
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s.searcher.SetQueryNorm(qnorm)
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}
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func (s *TermPrefixSearcher) Next(preAllocated *search.DocumentMatch) (*search.DocumentMatch, error) {
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return s.searcher.Next(preAllocated)
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}
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func (s *TermPrefixSearcher) Advance(ID index.IndexInternalID, preAllocated *search.DocumentMatch) (*search.DocumentMatch, error) {
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return s.searcher.Advance(ID, preAllocated)
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}
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func (s *TermPrefixSearcher) Close() error {
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return s.searcher.Close()
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}
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func (s *TermPrefixSearcher) Min() int {
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return 0
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}
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