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Date: Sat, 18 Aug 2007 21:01:04 -0700 (PDT)
From: Chris Hostetter <hossman_lucene@fucit.org>
To: java-user@lucene.apache.org
Subject: Re: Deleting the result from a query or a filter and not a documents
 specified by Term
In-Reply-To: <4479cfa0708172339u73c1dbf5ya2ac0b6f6961d9d3@mail.gmail.com>
Message-ID: <Pine.LNX.4.58.0708182058450.14063@hal.rescomp.berkeley.edu>
References: <4479cfa0708172339u73c1dbf5ya2ac0b6f6961d9d3@mail.gmail.com>
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: Is there a way to delete the results from a query or a filter and not
: documents specified by Term. I have seen some explanations here but i do not
: know how to do it:
:
: http://www.nabble.com/Batch-deletions-of-Records-from-index-tf615674.html#a1644740

the simplest approach that will work in a general case:
  1) build you query object
  2) call rewrite on your query
  3) call extractTerms on the rewritten query
  4) iterate over all those terms and delete.

if you have Filter it's even easier...
  1) call the bits method on your filter
  2) iterate over each bit and call the delete method that takes a docid.


-Hoss


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