optimizations to IntPairMap.java

[sbp.git] / src / edu / berkeley / sbp / util / IntegerTopology.java

diff --git a/src/edu/berkeley/sbp/util/IntegerTopology.java b/src/edu/berkeley/sbp/util/IntegerTopology.java
index 73de988..55ac082 100644 (file)
--- a/src/edu/berkeley/sbp/util/IntegerTopology.java
+++ b/src/edu/berkeley/sbp/util/IntegerTopology.java
@@ -1,3 +1,5 @@
+// Copyright 2006-2007 all rights reserved; see LICENSE file for BSD-style license
+
 package edu.berkeley.sbp.util;
 import java.io.*;
 import java.util.*;
@@ -7,7 +9,7 @@ import edu.berkeley.sbp.*;
 import edu.berkeley.sbp.util.*;
 
 /** implementation of <tt>Topology</tt> for any class for which there is a mapping to the <tt>int</tt>s */
-public class IntegerTopology<V> implements Topology<V> {
+public class IntegerTopology<V> implements Topology<V>, Serializable {
 
     private final Range.Set rs;
     private final Functor<V,Integer> f;