Created a ResultListenerList that maps the InvocationService.ResultListener

interface to a list of listeners. Also made RootDObjectManager a RunQueue so
that we can pass around references to the interface rather than requiring a
PresentsDObjectMgr.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4789 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/util/ResultListenerList.java

@@ -0,0 +1,50 @@
+//
+// $Id$
+//
+// Narya library - tools for developing networked games
+// Copyright (C) 2002-2007 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.util;
+
+import java.util.ArrayList;
+
+import com.threerings.presents.client.InvocationService;
+
+/**
+ * Maintains a list of result listeners, dispatching the eventual actual result or failure to them
+ * all as if they were a single listener.
+ */
+public class ResultListenerList extends ArrayList<InvocationService.ResultListener>
+    implements InvocationService.ResultListener
+{
+    // from InvocationService.ResultListener
+    public void requestProcessed (Object result)
+    {
+        for (InvocationService.ResultListener listener : this) {
+            listener.requestProcessed(result);
+        }
+    }
+
+    // from InvocationService.ResultListener
+    public void requestFailed (String cause)
+    {
+        for (InvocationService.ResultListener listener : this) {
+            listener.requestFailed(cause);
+        }
+    }
+}