Patch: FYI: java.sql update

[Tom Tromey]

Inspired by Erik Poupaert, I looked at our java.sql comparison.
It turns out we were just a couple methods away from 100% conformance,
so I wrote this patch.

This is going in 3.3, 3.4, and Classpath.

Tom

Index: ChangeLog
from  Tom Tromey  <tromey@redhat.com>

	* java/sql/Timestamp.java (compareTo(Object)): New method.
	(compareTo(Timestamp)): Likewise.
	(serialVersionUID): Updated.

Index: java/sql/Timestamp.java
===================================================================
RCS file: /cvsroot/classpath/classpath/java/sql/Timestamp.java,v
retrieving revision 1.6
diff -u -r1.6 Timestamp.java
--- java/sql/Timestamp.java 21 Jun 2002 05:34:12 -0000 1.6
+++ java/sql/Timestamp.java 10 Feb 2003 19:41:09 -0000
@@ -1,5 +1,5 @@
 /* Time.java -- Wrapper around java.util.Date
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2003 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -52,7 +52,7 @@
  */
 public class Timestamp extends java.util.Date
 {
-  static final long serialVersionUID = 3581463369166924961L;
+  static final long serialVersionUID = 2745179027874758501L;
 
   /**
    * Used for parsing and formatting this date.
@@ -237,19 +237,37 @@
   }
 
   /**
+   * Compare two Timestamp
+   * @param when the other Timestamp.
+   * @return 0, if the date represented
+   * by obj is exactly the same as the time represented by this
+   * object, a negative if this Timestamp is before the other Timestamp, and
+   * a positive value otherwise.  
    * @since 1.2
    */
-   /*
   public int compareTo(Timestamp ts)
   {
-    
-  }*/
-  
+    int s = super.compareTo((java.util.Date) ts);
+    if (s != 0)
+      return s;
+    // If Date components were equal, then we check the nanoseconds.
+    return nanos - ts.nanos;
+  }
+
   /**
+   * Compares this Timestamp to another.  This behaves like
+   * <code>compareTo(Timestamp)</code>, but it may throw a
+   * <code>ClassCastException</code>
+   * @param obj the other Timestamp.
+   * @return 0, if the Timestamp represented
+   * by obj is exactly the same as the time represented by this
+   * object, a negative if this Timestamp is before the other Timestamp, and
+   * a positive value otherwise.  
+   * @exception ClassCastException if obj is not of type Timestamp.
    * @since 1.2
-   *//*
+   */
   public int compareTo(Object obj)
   {
     return compareTo((Timestamp) obj);
-  }*/
+  }
 }