From 2933147f53d43377613e9d51d51f9a55df75346e Mon Sep 17 00:00:00 2001
From: Patrick Linskey <pcl@apache.org>
Date: Thu, 10 Jan 2008 20:37:36 +0000
Subject: [PATCH] proxy collection optimization for adding to the end of a list
 vs. adding elsewhere

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@610922 13f79535-47bb-0310-9956-ffa450edef68
---
 .../main/java/org/apache/openjpa/util/ProxyCollections.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/openjpa-kernel/src/main/java/org/apache/openjpa/util/ProxyCollections.java b/openjpa-kernel/src/main/java/org/apache/openjpa/util/ProxyCollections.java
index b5f54cb25..eee99d684 100644
--- a/openjpa-kernel/src/main/java/org/apache/openjpa/util/ProxyCollections.java
+++ b/openjpa-kernel/src/main/java/org/apache/openjpa/util/ProxyCollections.java
@@ -38,7 +38,11 @@ public class ProxyCollections
      */
     public static void beforeAdd(ProxyCollection coll, int index, Object value){
         assertAllowedType(value, coll.getElementType());
-        dirty(coll, true);
+        if (index == coll.size())
+            // optimize for adding to the end
+            beforeAdd(coll, value);
+        else
+            dirty(coll, true);
     }
 
     /**