diff --git a/src/as/com/threerings/presents/dobj/SetAdapter.as b/src/as/com/threerings/presents/dobj/SetAdapter.as
new file mode 100644
index 000000000..000a0ba9f
--- /dev/null
+++ b/src/as/com/threerings/presents/dobj/SetAdapter.as
@@ -0,0 +1,64 @@
+//
+// $Id: SetAdapter.java 4191 2006-06-13 22:42:20Z ray $
+//
+// Narya library - tools for developing networked games
+// Copyright (C) 2002-2004 Three Rings Design, Inc., All Rights Reserved
+// http://www.threerings.net/code/narya/
+//
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.threerings.presents.dobj {
+
+public class SetAdapter
+    implements SetListener
+{
+    public function SetAdapter (
+        addedFn :Function = null, updatedFn :Function = null,
+        removedFn :Function = null)
+    {
+        _addedFn = addedFn;
+        _updatedFn = updatedFn;
+        _removedFn = removedFn;
+    }
+
+    // from SetListener
+    public function entryAdded (event :EntryAddedEvent) :void
+    {
+        if (_addedFn != null) {
+            _addedFn(event);
+        }
+    }
+
+    // from SetListener
+    public function entryUpdated (event :EntryUpdatedEvent) :void
+    {
+        if (_updatedFn != null) {
+            _updatedFn(event);
+        }
+    }
+
+    // from SetListener
+    public function entryRemoved (event :EntryRemovedEvent) :void
+    {
+        if (_removedFn != null) {
+            _removedFn(event);
+        }
+    }
+
+    protected var _addedFn :Function;
+    protected var _updatedFn :Function;
+    protected var _removedFn :Function;
+}
+}