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From "Chris Harris (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-1903) Incorrect ShingleFilter behavior when outputUnigrams == false
Date Tue, 08 Sep 2009 21:55:57 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Harris updated LUCENE-1903:
---------------------------------

    Attachment: LUCENE-1903_testcases_lucene2_4_1_version.patch

Here is the equivalent patch for lucene 2.4.1. The six tests all pass.

> Incorrect ShingleFilter behavior when outputUnigrams == false
> -------------------------------------------------------------
>
>                 Key: LUCENE-1903
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1903
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: contrib/analyzers
>            Reporter: Chris Harris
>         Attachments: LUCENE-1903_testcases.patch, LUCENE-1903_testcases_lucene2_4_1_version.patch,
TEST-org.apache.lucene.analysis.shingle.ShingleFilterTest.xml
>
>
> ShingleFilter isn't working as expected when outputUnigrams == false. In particular,
it is outputting unigrams at least some of the time when outputUnigrams==false.
> I'll attach a patch to ShingleFilterTest.java that adds some test cases that demonstrate
the problem.
> I haven't checked this, but I hypothesize that the behavior for outputUnigrams == false
got changed when the class was upgraded to the new TokenStream API?

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