diff --git a/calendar/base/src/calAttributeHelpers.h b/calendar/base/src/calAttributeHelpers.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla 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/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Oracle Corporation code.
+ *
+ * The Initial Developer of the Original Code is
+ *  Oracle Corporation
+ * Portions created by the Initial Developer are Copyright (C) 2004
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Vladimir Vukicevic <vladimir.vukicevic@oracle.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef CALATTRIBUTEHELPERS_H_
+#define CALATTRIBUTEHELPERS_H_
+
+/**
+ ** A few helpers for declaring simple attribute getters and setters in
+ ** calItemBase derivatives
+ **/
+
+// helpers for string types
+#define CAL_STRINGTYPE_ATTR_GETTER(cname,mtype,name) \
+NS_IMETHODIMP \
+cname::Get##name (mtype &_retval) { \
+    _retval.Assign(m##name); \
+    return NS_OK; \
+}
+
+#define CAL_STRINGTYPE_ATTR_SETTER(cname,mtype,name) \
+NS_IMETHODIMP \
+cname::Set##name (const mtype &aValue) { \
+    m##name.Assign(aValue); \
+    return NS_OK; \
+}
+
+#define CAL_STRINGTYPE_ATTR(cname,mtype,name) \
+    CAL_STRINGTYPE_ATTR_GETTER(cname,mtype,name) \
+    CAL_STRINGTYPE_ATTR_SETTER(cname,mtype,name)
+
+// helpers for value types
+#define CAL_VALUETYPE_ATTR_GETTER(cname,mtype,name) \
+NS_IMETHODIMP \
+cname::Get##name (mtype *_retval) { \
+    *_retval = m##name; \
+    return NS_OK; \
+}
+
+#define CAL_VALUETYPE_ATTR_SETTER(cname,mtype,name) \
+NS_IMETHODIMP \
+cname::Set##name (mtype aValue) { \
+    if (m##name != aValue) { \
+        m##name = aValue; \
+        mLastModifiedTime = PR_Now(); \
+    } \
+    return NS_OK; \
+}
+
+#define CAL_VALUETYPE_ATTR(cname,mtype,name) \
+    CAL_VALUETYPE_ATTR_GETTER(cname,mtype,name) \
+    CAL_VALUETYPE_ATTR_SETTER(cname,mtype,name)
+
+// helpers for interface types
+#define CAL_ISUPPORTS_ATTR_GETTER(cname,mtype,name) \
+NS_IMETHODIMP \
+cname::Get##name (mtype **_retval) { \
+    NS_IF_ADDREF (*_retval = m##name); \
+    return NS_OK; \
+}
+
+#define CAL_ISUPPORTS_ATTR_SETTER(cname,mtype,name) \
+NS_IMETHODIMP \
+cname::Set##name (mtype *aValue) { \
+    if (m##name != aValue) { \
+        m##name = aValue; \
+        mLastModifiedTime = PR_Now(); \
+    } \
+    return NS_OK; \
+}
+
+#define CAL_ISUPPORTS_ATTR(cname,mtype,name) \
+    CAL_ISUPPORTS_ATTR_GETTER(cname,mtype,name) \
+    CAL_ISUPPORTS_ATTR_SETTER(cname,mtype,name)
+
+
+#endif