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From "mailtojiangmingyuan" <>
Subject Re: how to get all documents in the results ?
Date Tue, 22 Mar 2011 14:21:50 GMT
yes,i think the "MatchAllDocsQuery" should feed your need.
------------------ Original ------------------
From: "Anshum"; 
Date: 2011年3月22日(星期二) 晚上7:40
To: "java-user"; 
Subject: Re: how to get all documents in the results ?

Hi Patrick,
You may have a look at this, perhaps this will help you with it. Let me know
if you're still stuck up.

Anshum Gupta

On Tue, Mar 22, 2011 at 4:10 PM, <> wrote:

> Not sure what your use case actually is, but it sounds like you may be
> unclear how Lucene works.
> Each query clause you have will produce an iterator that walks over the
> documents that match that clause.  All the documents from the entire, root
> query get scored.  The scoring evaluation per document is also related to
> the form of your query expression hierarchy.
> So, MatchAllDocsQuery is exactly what you want if you want a document
> iterator that includes all documents in the index.  You can change how this
> is scored by extending MatchAllDocsQuery and writing a custom scorer.
> Karl
> -----Original Message-----
> From: ext Patrick Diviacco []
> Sent: Tuesday, March 22, 2011 4:23 AM
> To:
> Subject: how to get all documents in the results ?
> I'm using the following code because I want to see the entire collection in
> my query results:
> //adding wildcards-term to see all results
> rest = new TermQuery(new Term("*","*"));
> booleanQuery.add(rest, BooleanClause.Occur.SHOULD);
> But it doesn't work, I only see the relevant docs and not all the other
> ones.
> How can I get all documents ordered by relevance instead ?
> ps. MatchAllDocsQuery is not a solution because I need to specify my own
> custom query.
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