diff --git a/mozilla/js/rhino/src/org/mozilla/javascript/ClassRepository.java b/mozilla/js/rhino/src/org/mozilla/javascript/ClassRepository.java
new file mode 100644
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+++ b/mozilla/js/rhino/src/org/mozilla/javascript/ClassRepository.java
@@ -0,0 +1,55 @@
+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (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.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1997-2000 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ * Kemal Bayram
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU Public License (the "GPL"), in which case the
+ * provisions of the GPL are applicable instead of those above.
+ * If you wish to allow use of your version of this file only
+ * under the terms of the GPL and not to allow others to use your
+ * version of this file under the NPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL.  If you do not delete
+ * the provisions above, a recipient may use your version of this
+ * file under either the NPL or the GPL.
+ */
+package org.mozilla.javascript;
+
+import java.io.*;
+
+/**
+ * This interface provides a means to store generated class and to
+ * allow selective class loading.
+ *
+ * @see Context
+ * @author Kemal Bayram
+ */
+public interface ClassRepository {  
+    /**
+     * @param className the name of the class.
+     * @param classBytes a byte array of the generated class.
+     * @param isTopLevel if true, represents the top-level script being compiled.
+     * @return true if the class should be loaded, false otherwise. 
+     */
+    public boolean storeClass(String className, byte[] classBytes, 
+                           boolean isTopLevel) throws IOException;
+}