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List:       lucene-dev
Subject:    [jira] [Resolved] (LUCENE-4273) Fix DocsEnum freq flag consistent with DocsAndPositionsEnum flags
From:       "Robert Muir (JIRA)" <jira () apache ! org>
Date:       2012-07-31 16:07:34
Message-ID: 1947121891.121915.1343750854878.JavaMail.jiratomcat () issues-vm
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     [ https://issues.apache.org/jira/browse/LUCENE-4273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel \
]

Robert Muir resolved LUCENE-4273.
---------------------------------

       Resolution: Fixed
    Fix Version/s: 5.0
    
> Fix DocsEnum freq flag consistent with DocsAndPositionsEnum flags
> -----------------------------------------------------------------
> 
> Key: LUCENE-4273
> URL: https://issues.apache.org/jira/browse/LUCENE-4273
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
> Fix For: 4.0, 5.0
> 
> Attachments: LUCENE-4273.patch, LUCENE-4273.patch, LUCENE-4273.patch
> 
> 
> Followup from LUCENE-4230
> Currently today to pull freq() from a docsEnum, you have to pass a boolean \
> 'needsFreqs=true'. If the field omitsTF, then it returns null (and you need to call \
> it again, with 'needsFreqs=false', in which case you are not supposed to call \
> freq(). We fixed this in D&PEnum in 4230: as you can tell from the fieldinfos \
> whether they are there or not, there is no need to return null, it makes consumer \
> code complicated. So this issue is just to have docs(Bits, reuse) which calls \
> docs(Bits, reuse, FLAG_FREQS) by default. if they arent there, the docsenum returns \
> 1 for freq().  So calling docs(Bits, reuse, 0) is just an optimization hint to the \
> codec that you never need them (same as the payload/offset flags for \
> docsAndPositions)

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