diff --git a/src/java/org/apache/commons/collections/comparators/TransformingComparator.java b/src/java/org/apache/commons/collections/comparators/TransformingComparator.java
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+++ b/src/java/org/apache/commons/collections/comparators/TransformingComparator.java
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+package org.apache.commons.collections.comparators;
+
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ *    "Apache Commons" must not be used to endorse or promote products
+ *    derived from this software without prior written permission. For
+ *    written permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ *    "Apache Turbine", nor may "Apache" appear in their name, without
+ *    prior written permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+import java.util.Comparator;
+
+import org.apache.commons.collections.Transformer;
+
+/**
+ * Decorates another Comparator with transformation behavior.&nbsp;That is, the
+ * return value from the transform operation will be passed to the decorated
+ * <CODE>Comparator#compare</CODE> method.
+ * <p>
+ * @see org.apache.commons.collections.Transformer
+ * @see org.apache.commons.collections.comparators.ComparableComparator
+ */
+public class TransformingComparator implements Comparator
+{
+    protected Comparator decorated;
+    protected Transformer transformer;
+
+    /**
+     * Constructs an instance with the given Transformer and a ComparableComparator.
+     * @param transformer what will transform the instance.
+     */
+    public TransformingComparator(Transformer transformer)
+    {
+        this(transformer, new ComparableComparator());
+    }
+
+    /**
+     * Constructs an instance with the given Transformer and Comparator
+     * @param decorated  the decorated Comparator
+     * @param getterName    the getter name
+     */
+    public TransformingComparator(Transformer transformer, Comparator decorated)
+    {
+        this.decorated = decorated;
+        this.transformer = transformer;
+    }
+
+    /**
+     * Returns the result of comparing the values from the transform operation.
+     * @return the result of comparing the values from the transform operation
+     */
+    public int compare(Object o1, Object o2)
+    {
+        Object value1 = this.transformer.transform(o1);
+        Object value2 = this.transformer.transform(o2);
+        return this.decorated.compare(value1, value2);
+    }
+
+}
+