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From Anuj Bhatt <>
Subject Doc IDs via IndexReader?
Date Thu, 23 Jul 2009 02:58:28 GMT

I'm relatively new to Lucene. I have the following case: I have
indexed a bunch of documents. I then, query the index using
IndexSearcher and retrieve the documents using Hits (I do know this is
deprecated -- I'm using v 2.4.1). So, I do this for a set of queries
and maintain which documents are returned to each one. In the end of
it all, I have a list of documents maintained (more specifically, the associated with the doc). Now, I wish to
delete the documents which have not been returned for any query, from
the index. How can I do this?

My initial assumption was that I could retrieve all the doc ids from
IndexReader and just traverse the list that I have maintained, if it
is in the list, I don't delete it otherwise I do. Looking around
didn't yield anything, and hence the mail.

Any suggestions?


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