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From "Woody Anderson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2543) expose position information in SegmentReader, add method getPosition(term)
Date Sun, 18 Jul 2010 06:12:50 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12889572#action_12889572
] 

Woody Anderson commented on LUCENE-2543:
----------------------------------------

i took a quite peek at making a patch for this for the lucene/trunk branch. SegmentReader
has changed quite a lot with the codec stuff. If someone familiar with that new code knows
the quick/easy way to have a... i guess a FieldProducer impl for the SegmentReader that can
expose position information, that'd be great.
I would imagine that for a single segment we're still very capable of knowing the position
of term.

I have code that depends on this functionality, i would like to be able to try it all out
against lucene/trunk as it moves forward.

> expose position information in SegmentReader, add method getPosition(term)
> --------------------------------------------------------------------------
>
>                 Key: LUCENE-2543
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2543
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>    Affects Versions: 3.0.2
>            Reporter: Woody Anderson
>             Fix For: 3.0.2, 4.0
>
>         Attachments: LUCENE-2543.patch
>
>
> add public long getPosition(Term) to SegmentReader.
> Also, update the impl of getPosition in TermInfosReader (called by new method) to use
enumerator.scanTo() to avoid creating many intermediate Term objects.

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