As Charlie points out, that makes more sense being abstract. Shame on me for copying

NamedSetAdapter on autopilot; there you have multiple things that you might not want
to bother with, but here you damned well BETTER implement that one method yourself.

Also, while I'm at it, make that protected since I really doubt you're going to find
yourself sitting on top of an EntryAddedEvent that you're REALLY SURE is the right
one & want to pass it in to one of these by hand. And if you do, suck it up and let
the string compare burn the couple extra cycles to make sure. (I feel like making
the same change to the other Named* things here real quick, but I should really 
double check that I don't break anybody's stuff/change anything I see using it that
would now be making the named versions more visible for now good reason)


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6004 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/dobj/NamedElementUpdateListener.java

@@ -25,7 +25,7 @@ package com.threerings.presents.dobj;
  * An ElementUpdateListener that listens for changes with a given name and calls
  * namedElementUpdated when they occur.
  */
-public class NamedElementUpdateListener
+public abstract class NamedElementUpdateListener
     implements ElementUpdateListener
 {
     /**
@@ -43,10 +43,7 @@ public class NamedElementUpdateListener
         }
     }
 
-    public void namedElementUpdated (ElementUpdatedEvent event)
-    {
-        // Override to provide functionality
-    }
+    abstract protected void namedElementUpdated (ElementUpdatedEvent event);
 
     protected final String _name;
 }