[jira] Commented: (LUCENENET-183) SegmentTermVector IndexOf method always fails

["Digy (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENENET-183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715244#action_12715244 ] 

Digy commented on LUCENENET-183:
--------------------------------

Shouldn't we also fix QueryTermVector#IndexOf?  Has anyone tested it?

DIGY

> SegmentTermVector IndexOf method always fails
> ---------------------------------------------
>
>                 Key: LUCENENET-183
>                 URL: https://issues.apache.org/jira/browse/LUCENENET-183
>             Project: Lucene.Net
>          Issue Type: Bug
>            Reporter: Franklin Simmons
>         Attachments: SegmentTermVector-2.patch, SegmentTermVector.patch
>
>
> At index time term vectors are sorted using String.CompareOrdinal. However method IndexOf of class SegmentTermVector invokes System.Array.BinarySearch, which is using String.Compare.
> {noformat}public virtual int IndexOf(System.String termText)
> {
> 	if (terms == null)
> 		return - 1;
>     int res = System.Array.BinarySearch(terms, termText);
> 	return res >= 0 ? res : - 1;
> }
> {noformat}
> The effect is that the IndexOf method always returns a negative number (no match) because the sort order is incompatible with the default comparer.

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