add Serializable to util classes

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

diff --git a/src/edu/berkeley/sbp/util/Range.java b/src/edu/berkeley/sbp/util/Range.java
index 9dae4a3..b803480 100644 (file)
--- a/src/edu/berkeley/sbp/util/Range.java
+++ b/src/edu/berkeley/sbp/util/Range.java
@@ -35,12 +35,13 @@
 package edu.berkeley.sbp.util;
 import java.util.*;
 import java.text.*;
+import java.io.*;
 
 /**
  * This class represents a range of integers (incuding positive and negative 
  * infinity).
  */
-public class Range {
+public class Range implements Serializable {
 
     private boolean negInf, posInf;
     private long min,max;
@@ -269,7 +270,7 @@ public class Range {
      *
      * @author Justin F. Chapweske
      */
-    public static class Set implements Iterable<Range> {
+    public static class Set implements Iterable<Range>, Serializable {
  
         public static final int DEFAULT_CAPACITY = 16;