vivat grendel!

git-svn-id: svn://10.0.0.236/trunk@9581 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/grendel/storage/MessageExtraFactory.java

@@ -0,0 +1,37 @@
+/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.0 (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.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 the Grendel mail/news client.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1997
+ * Netscape Communications Corporation.  All Rights Reserved.
+ *
+ * Created: Terry Weissman <terry@netscape.com>, 27 Oct 1997.
+ */
+
+package grendel.storage;
+
+import javax.mail.Message;
+
+/** If you want to call any of the MessageExtra methods on a Message, you
+  should get the MessageExtra object using this call.  Some Message objects
+  will implement that interface directly; the rest need to have them
+  painfully computed. */
+
+public class MessageExtraFactory {
+  static public MessageExtra Get(Message m) {
+    if (m instanceof MessageExtra) return (MessageExtra) m;
+    return new MessageExtraWrapper(m);
+  }
+}
+