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From Jason Fennell <jdfenn...@gmail.com>
Subject Re: MatchAllDocsQuery and InstantiatedIndex on Lucene 2.9.1
Date Thu, 10 Dec 2009 20:39:55 GMT
Thanks for the fast reply & patch!

On Thu, Dec 10, 2009 at 12:20 PM, Karl Wettin <karl.wettin@gmail.com> wrote:

> https://issues.apache.org/jira/browse/LUCENE-2144
>
> 9 dec 2009 kl. 23.22 skrev Uwe Schindler:
>
>
>  This is a bug in InstantiatedIndex. The termDoc(null) was added to get all
>> documents. This was never implemented in Instantiated Index. Can you open
>> an
>> issue?
>>
>> There maybe other queries fail because of this (e.g.
>> FieldCacheRangeFilter,...).
>>
>> -----
>> Uwe Schindler
>> H.-H.-Meier-Allee 63, D-28213 Bremen
>> http://www.thetaphi.de
>> eMail: uwe@thetaphi.de
>>
>>  -----Original Message-----
>>> From: Jason Fennell [mailto:jdfennell@gmail.com]
>>> Sent: Wednesday, December 09, 2009 7:48 PM
>>> To: java-user@lucene.apache.org
>>> Subject: MatchAllDocsQuery and InstantiatedIndex on Lucene 2.9.1
>>>
>>> I'm trying to upgrade our application from Lucene 2.4.1 to Lucene 2.9.1.
>>> I've been using an InstantiatedIndex to do a bunch of unit testing, but
>>> am
>>> running into a some problems with Lucene 2.9.1.
>>> In particular, when I try to run a MatchAllDocsQuery on my
>>> InstantiatedIndex
>>> (which worked fine on 2.4.1) a NullPointerException is raised.  I think I
>>> tracked down the problem in the Lucene source.
>>>
>>> In the 2.9.1 MatchAllDocsQuery, the MatchAllScorer retrieves termDocs
>>> from
>>> the IndexReader passed to it with
>>>
>>> reader.termDocs(null)
>>>
>>> which I assume is supposed to return all termDocs.  However, tracing this
>>> call down
>>>
>>> IndexReader.termDocs(term) calls InstantiatedTermDocs.seek(
>>> term) calls InstantiatedIndex.findTerm(term)
>>>
>>> which is implemented as
>>>
>>> InstantiatedTerm findTerm(Term term) {
>>>   return findTerm(term.field(), term.text());
>>> }
>>>
>>> which, since term is null, results in a NullPointerException.  This seems
>>> to
>>> me like an bug either in the MatchAllDocsQuery implementation (the
>>> version
>>> in 2.4.1 did not use termDocs, so did not pass through this null), or a
>>> bug
>>> in the implementation of InstantiatedIndex.
>>>
>>> Any suggestions on what I can do about this?  I definitely can't get rid
>>> of
>>> the MatchAllDocsQuery and don't really want to move back to a slow
>>> RAMDirectory.
>>>
>>
>>
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>
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