diff --git a/src/java/com/threerings/presents/dobj/SettedObject.java b/src/java/com/threerings/presents/dobj/SettedObject.java
new file mode 100644
index 000000000..79f262f1b
--- /dev/null
+++ b/src/java/com/threerings/presents/dobj/SettedObject.java
@@ -0,0 +1,45 @@
+//
+// $Id: SettedObject.java,v 1.1 2004/06/03 16:34:07 ray Exp $
+
+package com.threerings.presents.dobj;
+
+/**
+ * Allows manipulation of DSets in generic ways.
+ */
+public interface SettedObject
+{
+    /**
+     * Get the specified set.
+     */
+    public DSet getSet (String name);
+
+    /**
+     * Add the item to the set.
+     */
+    public void addToSet (String setName, DSet.Entry entry);
+
+    /**
+     * Update an item in the set.
+     */
+    public void updateSet (String setName, DSet.Entry entry);
+
+    /**
+     * Remove the item from set.
+     */
+    public void removeFromSet (String setName, Comparable key);
+
+    /**
+     * See {@link DObject#getOid}.
+     */
+    public int getOid ();
+
+    /**
+     * See {@link DObject#addListener}.
+     */
+    public void addListener (ChangeListener listener);
+
+    /**
+     * See {@link DObject#removeListener}.
+     */
+    public void removeListener (ChangeListener listener);
+}