Tommaso Teofili created LUCENE-4782:
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Summary: Let the NaiveBayes classifier have a fallback docCount
method if codec doesn't support Terms#docCount()
Key: LUCENE-4782
URL: https://issues.apache.org/jira/browse/LUCENE-4782
Project: Lucene - Core
Issue Type: Bug
Components: modules/classification
Reporter: Tommaso Teofili
Fix For: 4.2, 5.0
In _SimpleNaiveBayesClassifier_ _docsWithClassSize_ variable is initialized to
_MultiFields.getTerms(this.atomicReader, this.classFieldName).getDocCount()_
which may be -1 if the codec doesn't support doc counts, therefore there should
be an alternative way to initialize such a variable with the documents count.
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