More progress.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3849 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/presents/dobj/DObject.as

@@ -2,7 +2,12 @@ package com.threerings.presents.dobj {
 
 import flash.events.EventDispatcher;
 
+import com.threerings.io.ObjectInputStream;
+import com.threerings.io.ObjectOutputStream;
+import com.threerings.io.Streamable;
+
 public class DObject extends EventDispatcher
+    implements Streamable
 {
     public function getOid ():int
     {
@@ -14,6 +19,18 @@ public class DObject extends EventDispatcher
 
     }
 
+    // documentation inherited from interface Streamable
+    public function writeObject (out :ObjectOutputStream) :void
+    {
+        out.writeInt(_oid);
+    }
+
+    // documentation inherited from interface Streamable
+    public function readObject (ins :ObjectInputStream) :void
+    {
+        _oid = ins.readInt();
+    }
+
     protected var _oid :int;
 }
 }