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javadocs; fix compiler warning 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1531320 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2013-10-11 15:06:31 +00:00
parent 0c6a64493c
commit 2de686ed34
1 changed files with 8 additions and 8 deletions
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16
lucene/queries/src/java/org/apache/lucene/queries/CommonTermsQuery.java
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@ -38,16 +38,16 @@ import org.apache.lucene.util.ToStringUtils;
/**
* A query that executes high-frequency terms in a optional sub-query to prevent
* slow queries due to "common" terms like stopwords. This query basically
* builds 2 queries off the {@link #add(Term) added} terms where low-frequency
* slow queries due to "common" terms like stopwords. This query
* builds 2 queries off the {@link #add(Term) added} terms: low-frequency
* terms are added to a required boolean clause and high-frequency terms are
* added to an optional boolean clause. The optional clause is only executed if
* the required "low-frequency' clause matches. Scores produced by this query
* will be slightly different to plain {@link BooleanQuery} scorer mainly due to
* differences in the {@link Similarity#coord(int,int) number of leave queries}
* in the required boolean clause. In the most cases high-frequency terms are
* the required "low-frequency" clause matches. Scores produced by this query
* will be slightly different than plain {@link BooleanQuery} scorer mainly due to
* differences in the {@link Similarity#coord(int,int) number of leaf queries}
* in the required boolean clause. In most cases, high-frequency terms are
* unlikely to significantly contribute to the document score unless at least
* one of the low-frequency terms are matched such that this query can improve
* one of the low-frequency terms are matched. This query can improve
* query execution times significantly if applicable.
* <p>
* {@link CommonTermsQuery} has several advantages over stopword filtering at
@ -173,7 +173,7 @@ public class CommonTermsQuery extends Query {
if (minNrShouldMatch >= 1.0f || minNrShouldMatch == 0.0f) {
return (int) minNrShouldMatch;
}
return (int) (Math.round(minNrShouldMatch * numOptional));
return Math.round(minNrShouldMatch * numOptional);
}
protected Query buildQuery(final int maxDoc,