Lucene学习总结 - forfuture1978的专栏 - 博客频道 - CSDN.NET



Lucene学习总结之三:Lucene的索引文件格式(2)

 四、具体格式上面曾经交代过,Lucene保存了从Index到Segment到Document到Field一直到Term的正向信息,也包括了从Term到Document映射的反向信息,还有其他一些Lucene特有的信息。下面对这三种信息一一介绍。4.1. 正向信息Index �> Segments (segments.gen, segments_N) �> Field(fn...
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Lucene学习总结之二:Lucene的总体架构

Lucene总的来说是: 一个高效的,可扩展的,全文检索库。 全部用Java实现,无须配置。 仅支持纯文本文件的索引(Indexing)和搜索(Search)。 不负责由其他格式的文件抽取纯文本文件,或从网络中抓取文件的过程。 在Lucene in action中,Lucene 的构架和过程如下图, 说明Lucene是有索引和搜索的两个过程,包...
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[置顶] Lucene学习总结之一:全文检索的基本原理

一、总论根据http://lucene.apache.org/java/docs/index.html 定义:Lucene 是一个高效的,基于Java 的全文检索库。 所以在了解Lucene之前要费一番工夫了解一下全文检索。那么什么叫做全文检索呢?这要从我们生活中的数据说起。我们生活中的数据总体分为两种:结构化数据 和非结构化数据 。结构化数据:...

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