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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2008/01/07 22:17:34 UTC
[jira] Resolved: (LUCENE-508) SegmentTermEnum.next() doesn't
maintain prevBuffer at end
[ https://issues.apache.org/jira/browse/LUCENE-508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless resolved LUCENE-508.
---------------------------------------
Resolution: Fixed
Fix Version/s: 2.3
I just committed this. Thanks Steven!
> SegmentTermEnum.next() doesn't maintain prevBuffer at end
> ---------------------------------------------------------
>
> Key: LUCENE-508
> URL: https://issues.apache.org/jira/browse/LUCENE-508
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 1.9, 2.0.0
> Environment: Lucene Trunk
> Reporter: Steven Tamm
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 2.3
>
>
> When you're iterating a SegmentTermEnum and you go past the end of the docs, you end up with a state where the nextBuffer = null and the prevBuffer is the penultimate term, not the last term. This patch fixes it. (It's also required for my Prefetching bug [LUCENE-506])
> Index: java/org/apache/lucene/index/SegmentTermEnum.java
> ===================================================================
> --- java/org/apache/lucene/index/SegmentTermEnum.java (revision 382121)
> +++ java/org/apache/lucene/index/SegmentTermEnum.java (working copy)
> @@ -109,6 +109,7 @@
> /** Increments the enumeration to the next element. True if one exists.*/
> public final boolean next() throws IOException {
> if (position++ >= size - 1) {
> + prevBuffer.set(termBuffer);
> termBuffer.reset();
> return false;
> }
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