lucene-相干概念与定义

lucene-相关概念与定义

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• 原文：http://wiki.apache.org/lucene-java/ConceptsAndDefinitions
• 导航：Lucene-java Wiki-》1?Overview-》1.1?Informational-》 1.1.2?ConceptsAndDefinitions
• 注意：“ 红色?”，表示不知道、不确定怎么翻译。??“ 蓝色”自己的描述。

  See?LuceneFAQ,?How do I retrieve all the values of a particular field that exists within an index, across all documents??which also includes sample code.

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  TermDocs

  不像TermEnum?(see above),?TermDocs?通常用于确定哪些文档包括给定的Term。另外，TermDocs?也提供了term?在文档中出现的频率。

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  TermFreqVector

  A?TermFreqVector?(aka Term Frequency Vector or just Term Vector) is a data structure containing a given Document's term and frequency information and can be retrieved from the?IndexReader?only when Term Vectors are stored during indexing.

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  TermFreqVector?是一个包含given Document's term?和**的数据结构。

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  ?原文A?TermFreqVector?(aka Term Frequency Vector or just Term Vector) is a data structure containing a given Document's term and frequency information and can be retrieved from the?IndexReader?only when Term Vectors are stored during indexing.?Directory

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  IndexReader

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  IndexSearcher

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