From 28d0b3c1737ba38759f84ee9fdbb769f903dbf0e Mon Sep 17 00:00:00 2001
From: "Brian S. O'Neill" <bronee@gmail.com>
Date: Sat, 8 Jan 2011 01:18:58 +0000
Subject: Add option to disable reverse splits.

---
 .../carbonado/repo/sleepycat/BDBRepositoryBuilder.java      | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/main/java/com/amazon/carbonado/repo/sleepycat')

diff --git a/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java b/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java
index 562572f..7605b30 100644
--- a/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java
+++ b/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java
@@ -98,6 +98,7 @@ public final class BDBRepositoryBuilder extends AbstractRepositoryBuilder {
     private boolean mTxnNoSync;
     private boolean mTxnWriteNoSync;
     private Boolean mDatabasesTransactional = null;
+    private boolean mReverseSplitOff;
     private Map<Class<?>, Integer> mDatabasePageSizes;
     private boolean mPrivate;
     private boolean mMultiversion;
@@ -570,6 +571,18 @@ public final class BDBRepositoryBuilder extends AbstractRepositoryBuilder {
         return mDatabasesTransactional;
     }
 
+    /**
+     * Pass true to disable reverse split of B-tree nodes to reduce deadlocks.
+     * This setting has no effect for BDB-JE.
+     */
+    public void setReverseSplitOff(boolean off) {
+        mReverseSplitOff = off;
+    }
+
+    public boolean isReverseSplitOff() {
+        return mReverseSplitOff;
+    }
+
     /**
      * Sets the desired page size for a given type. If not specified, the page
      * size applies to all types.
-- 
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