From ce557ee4b379aba5aab3cdb649d3c7a9896afa9f Mon Sep 17 00:00:00 2001
From: Otis Gospodnetic <otis@apache.org>
Date: Thu, 22 May 2008 06:47:36 +0000
Subject: [PATCH] LUCENE-852: Let the SpellChecker caller specify IndexWriter
 mergeFactor and RAM buffer size.

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@659021 13f79535-47bb-0310-9956-ffa450edef68
---
 CHANGES.txt                                   |  3 +++
 .../lucene/search/spell/SpellChecker.java     | 21 ++++++++++++++-----
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/CHANGES.txt b/CHANGES.txt
index b23defaf75d..93386dc28a9 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -64,6 +64,9 @@ API Changes
     replacement character U+FFFD.  This is a change to the index file
     format.  (Marvin Humphrey via Mike McCandless)
 
+ 8. LUCENE-852: Let the SpellChecker caller specify IndexWriter mergeFactor
+    and RAM buffer size.  (Otis Gospodnetic)
+
 Bug fixes
     
  1. LUCENE-1134: Fixed BooleanQuery.rewrite to only optimize a single 
diff --git a/contrib/spellchecker/src/java/org/apache/lucene/search/spell/SpellChecker.java b/contrib/spellchecker/src/java/org/apache/lucene/search/spell/SpellChecker.java
index 014c5004176..9274b26c2cf 100755
--- a/contrib/spellchecker/src/java/org/apache/lucene/search/spell/SpellChecker.java
+++ b/contrib/spellchecker/src/java/org/apache/lucene/search/spell/SpellChecker.java
@@ -303,14 +303,16 @@ public class SpellChecker {
   }
 
   /**
-   * Index a Dictionary
-   * @param dict the dictionary to index
+   * Indexes the data from the given {@link Dictionary}.
+   * @param dict Dictionary to index
+   * @param mergeFactor mergeFactor to use when indexing
+   * @param ramMB the max amount or memory in MB to use
    * @throws IOException
    */
-  public void indexDictionary(Dictionary dict) throws IOException {
+  public void indexDictionary(Dictionary dict, int mergeFactor, int ramMB) throws IOException {
     IndexWriter writer = new IndexWriter(spellIndex, true, new WhitespaceAnalyzer());
-    writer.setMergeFactor(300);
-    writer.setMaxBufferedDocs(150);
+    writer.setMergeFactor(mergeFactor);
+    writer.setRAMBufferSizeMB(ramMB);
 
     Iterator iter = dict.getWordsIterator();
     while (iter.hasNext()) {
@@ -338,6 +340,15 @@ public class SpellChecker {
     searcher = new IndexSearcher(this.spellIndex);
   }
 
+  /**
+   * Indexes the data from the given {@link Dictionary}.
+   * @param dict the dictionary to index
+   * @throws IOException
+   */
+  public void indexDictionary(Dictionary dict) throws IOException {
+    indexDictionary(dict, 300, 10);
+  }
+
   private int getMin(int l) {
     if (l > 5) {
       return 3;