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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2649) FieldCache should include a BitSet for matching docs
Date Wed, 22 Sep 2010 17:35:32 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12913675#action_12913675
] 

Uwe Schindler commented on LUCENE-2649:
---------------------------------------

bq. Hmm... I'd rather make an exception to 3.x, ie, allow the addition of this method to the
interface, than confuse the 4.x API, going forward, with 2 classes?

Same here, we already defined the FieldCache "interface" as subject to change. Mabye we should
simply remove it in trunk and only have a class? This interface was never of any use, because
you were not able to supply any other field cache implementation (the DEFAULT field is *final*
because all fields in interfaces are defined as *final* by the Java Language Spec.

> FieldCache should include a BitSet for matching docs
> ----------------------------------------------------
>
>                 Key: LUCENE-2649
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2649
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Ryan McKinley
>             Fix For: 4.0
>
>         Attachments: LUCENE-2649-FieldCacheWithBitSet.patch, LUCENE-2649-FieldCacheWithBitSet.patch,
LUCENE-2649-FieldCacheWithBitSet.patch, LUCENE-2649-FieldCacheWithBitSet.patch, LUCENE-2649-FieldCacheWithBitSet.patch
>
>
> The FieldCache returns an array representing the values for each doc.  However there
is no way to know if the doc actually has a value.
> This should be changed to return an object representing the values *and* a BitSet for
all valid docs.

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