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doc_info.go
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doc_info.go
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// Copyright 2013 Hui Chen
// Copyright 2016 ego authors
//
// 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 types
import (
"sync"
)
// DocInfosShard 文档信息[id]info
type DocInfosShard struct {
DocInfos map[string]*DocInfo
NumDocs uint64 // 这实际上是总文档数的一个近似
sync.RWMutex
}
// DocInfo document info
type DocInfo struct {
Fields interface{}
TokenLens float32
}
/// inverted_index.go
// InvertedIndexShard 反向索引表([关键词]反向索引表)
type InvertedIndexShard struct {
InvertedIndex map[string]*KeywordIndices
TotalTokenLen float32 //总关键词数
sync.RWMutex
}
// KeywordIndices 反向索引表的一行,收集了一个搜索键出现的所有文档,
// 按照 DocId 从小到大排序。
type KeywordIndices struct {
// 下面的切片是否为空,取决于初始化时 IndexType 的值
DocIds []uint64 // 全部类型都有
Frequencies []float32 // IndexType == FrequenciesIndex
Locations [][]int // IndexType == LocsIndex
}