1 files changed, 73 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/util/DataObjectUtil.java b/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/util/DataObjectUtil.java
new file mode 100644
index 0000000000..7f96f9aef4
--- /dev/null
+++ b/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/util/DataObjectUtil.java
@@ -0,0 +1,73 @@
+/**
+ *
+ *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.apache.tuscany.das.rdb.util;
+
+import java.util.Iterator;
+import java.util.List;
+
+import commonj.sdo.ChangeSummary;
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.ChangeSummary.Setting;
+import commonj.sdo.helper.DataFactory;
+
+/**
+ */
+public class DataObjectUtil {
+	
+	//Utilities
+	public static DataObject getRestoredCopy(DataObject changedDO) {
+	    DataObject changedCopy = getCopy(changedDO);
+	    restoreAttributeValues(changedCopy, changedDO);
+	    return changedCopy;
+	}
+
+	public static DataObject getCopy(DataObject original) {
+		
+		DataObject copy = DataFactory.INSTANCE.create(original.getType());
+		
+		//Fill in values
+		Iterator i = original.getType().getProperties().iterator();
+		while (i.hasNext()) {
+			Property feature = (Property) i.next();
+			copy.set(feature, original.get(feature));
+		}
+		return copy;
+	}	
+
+	/**
+     * @param changedCopy
+     * @return
+     */
+    private static void restoreAttributeValues(DataObject changedCopy, DataObject changedDO) {
+        
+		ChangeSummary changeSummary = changedDO.getDataGraph().getChangeSummary();
+		List changes = changeSummary.getOldValues(changedDO);
+		if ( changes == null )
+			return;
+		
+		Iterator i = changes.iterator();
+		while (i.hasNext()) {
+		    Setting s = (Setting) i.next();    
+		    if ( s.getProperty().getType().isDataType() )
+		    	changedCopy.set(s.getProperty(), s.getValue());
+		}
+   }
+
+	
+
+}