From 4d7488ccf67a88df0b06533f8c4b3a3a3b80c7f9 Mon Sep 17 00:00:00 2001
From: Tommaso Teofili <tommaso@apache.org>
Date: Tue, 20 Oct 2015 07:54:15 +0000
Subject: [PATCH] LUCENE-6631 - added missing javadoc for kNN classifier

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1709529 13f79535-47bb-0310-9956-ffa450edef68
---
 .../KNearestNeighborClassifier.java           | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/lucene/classification/src/java/org/apache/lucene/classification/KNearestNeighborClassifier.java b/lucene/classification/src/java/org/apache/lucene/classification/KNearestNeighborClassifier.java
index 6b49243bc84..b957dca1531 100644
--- a/lucene/classification/src/java/org/apache/lucene/classification/KNearestNeighborClassifier.java
+++ b/lucene/classification/src/java/org/apache/lucene/classification/KNearestNeighborClassifier.java
@@ -48,11 +48,34 @@ import org.apache.lucene.util.BytesRef;
  */
 public class KNearestNeighborClassifier implements Classifier<BytesRef> {
 
+  /**
+   * a {@link MoreLikeThis} instance used to perform MLT queries
+   */
   protected final MoreLikeThis mlt;
+
+  /**
+   * the name of the fields used as the input text
+   */
   protected final String[] textFieldNames;
+
+  /**
+   * the name of the field used as the output text
+   */
   protected final String classFieldName;
+
+  /**
+   * an {@link IndexSearcher} used to perform queries
+   */
   protected final IndexSearcher indexSearcher;
+
+  /**
+   * the no. of docs to compare in order to find the nearest neighbor to the input text
+   */
   protected final int k;
+
+  /**
+   * a {@link Query} used to filter the documents that should be used from this classifier's underlying {@link LeafReader}
+   */
   protected final Query query;
 
   /**