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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 35456] - NGramFilter -- construct n-grams from a TokenStream
Date Fri, 29 Jul 2005 12:57:01 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=35456





------- Additional Comments From apache-bugzilla@sebastian-kirsch.org  2005-07-29 14:56 -------
Created an attachment (id=15818)
 --> (http://issues.apache.org/bugzilla/attachment.cgi?id=15818&action=view)
JUnit test class for NGramAnalyzerWrapper

The tests in this class are concerned with the interaction between QueryParser
and an NGramAnalyzer, and whether searching works as expected on an index
constructed with an NGramAnalyzer.

One of the test cases throws an exception that I haven't investigated yet. So
proceed with caution if you use the QueryParser with NGramAnalyzer. 

..E....
Time: 1.771
There was 1 error:
1)
testNGramAnalyzerWrapperPhraseQueryParsingFails(org.apache.lucene.analysis.NGramAnalyzerWrapperTest)java.lang.NullPointerException

	at
org.apache.lucene.index.MultipleTermPositions.skipTo(MultipleTermPositions.java:178)

	at
org.apache.lucene.search.PhrasePositions.skipTo(PhrasePositions.java:47)
	at org.apache.lucene.search.PhraseScorer.doNext(PhraseScorer.java:73)
	at org.apache.lucene.search.PhraseScorer.next(PhraseScorer.java:66)
	at org.apache.lucene.search.Scorer.score(Scorer.java:47)
	at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:102)
	at org.apache.lucene.search.Hits.getMoreDocs(Hits.java:65)
	at org.apache.lucene.search.Hits.<init>(Hits.java:44)
	at org.apache.lucene.search.Searcher.search(Searcher.java:40)
	at org.apache.lucene.search.Searcher.search(Searcher.java:32)
	at
org.apache.lucene.analysis.NGramAnalyzerWrapperTest.queryParsingTest(NGramAnalyzerWrapperTest.java:75)

	at
org.apache.lucene.analysis.NGramAnalyzerWrapperTest.testNGramAnalyzerWrapperPhraseQueryParsingFails(NGramAnalyzerWrapperTest.java:100)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at
org.apache.lucene.analysis.NGramAnalyzerWrapperTest.main(NGramAnalyzerWrapperTest.java:36)


FAILURES!!!
Tests run: 6,  Failures: 0,  Errors: 1


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