是否可以遍历Lucene Index中存储的文档? [英] Is it possible to iterate through documents stored in Lucene Index?

问题描述

我有一些文档存储在带有docId字段的Lucene索引中. 我想获取存储在索引中的所有docId.还有一个问题.文档数量大约为300 000，所以我希望以大小为500的块形式获取此docId.是否可以这样做?

I have some documents stored in a Lucene index with a docId field. I want to get all docIds stored in the index. There is also a problem. Number of documents is about 300 000 so I would prefer to get this docIds in chunks of size 500. Is it possible to do so?

推荐答案

IndexReader reader = // create IndexReader
for (int i=0; i<reader.maxDoc(); i++) {
    if (reader.isDeleted(i))
        continue;

    Document doc = reader.document(i);
    String docId = doc.get("docId");

    // do something with docId here...
}

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