Grant handy automatic invocation service clearing to place manager delegates.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5738 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/crowd/server/PlaceManagerDelegate.java

@@ -21,7 +21,9 @@
 
 package com.threerings.crowd.server;
 
+import com.threerings.presents.data.InvocationMarshaller;
 import com.threerings.presents.dobj.RootDObjectManager;
+import com.threerings.presents.server.InvocationDispatcher;
 import com.threerings.presents.server.InvocationManager;
 
 import com.threerings.crowd.data.OccupantInfo;
@@ -108,6 +110,15 @@ public class PlaceManagerDelegate
         return _plmgr.where();
     }
 
+    /**
+     * Registers an invocation dispatcher and notes the registration such that it will be
+     * automatically cleared when our parent manager shuts down.
+     */
+    protected <T extends InvocationMarshaller> T registerDispatcher (InvocationDispatcher<T> disp)
+    {
+        return _plmgr.registerDispatcher(disp);
+    }
+
     /** A reference to the manager for which we are delegating. */
     protected PlaceManager _plmgr;