From 6cad0eaa4219aaed1737379528d39bc9ede5ff99 Mon Sep 17 00:00:00 2001
From: chenson42 <chenson42@gmail.com>
Date: Wed, 4 Jun 2014 18:41:57 +0000
Subject: [PATCH] 0001738: Introduce a new columntransform type that returns
 both new and old data. use it for the copy transform

---
 .../symmetric/io/data/transform/TransformedData.java   | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/symmetric-io/src/main/java/org/jumpmind/symmetric/io/data/transform/TransformedData.java b/symmetric-io/src/main/java/org/jumpmind/symmetric/io/data/transform/TransformedData.java
index 1e472aedab..c43c4fe678 100644
--- a/symmetric-io/src/main/java/org/jumpmind/symmetric/io/data/transform/TransformedData.java
+++ b/symmetric-io/src/main/java/org/jumpmind/symmetric/io/data/transform/TransformedData.java
@@ -325,7 +325,15 @@ public CsvData buildTargetCsvData() {
 
     public String[] getOldColumnValues() {
         List<String> list = retrieve(targetOldValuesByIncludeOnType, false);
-        return list.toArray(new String[list.size()]);
+        boolean use = false;
+        for (String string : list) {
+            use |= string != null;
+        }
+        if (use) {
+            return list.toArray(new String[list.size()]);
+        } else {
+            return null;
+        }
     }
 
 }