From 83148842ce3e677527a12ff95fdcfc702062b870 Mon Sep 17 00:00:00 2001
From: Ray Greenwell <ray@threerings.net>
Date: Fri, 27 Apr 2007 03:13:10 +0000
Subject: [PATCH] Order by random. Probably this isn't very optimal.

---
 src/java/com/samskivert/jdbc/depot/clause/OrderBy.java | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/java/com/samskivert/jdbc/depot/clause/OrderBy.java b/src/java/com/samskivert/jdbc/depot/clause/OrderBy.java
index c7fb4e5..f834e1e 100644
--- a/src/java/com/samskivert/jdbc/depot/clause/OrderBy.java
+++ b/src/java/com/samskivert/jdbc/depot/clause/OrderBy.java
@@ -25,6 +25,7 @@ import java.sql.SQLException;
 
 import com.samskivert.jdbc.depot.ConstructedQuery;
 import com.samskivert.jdbc.depot.expression.ColumnExp;
+import com.samskivert.jdbc.depot.expression.LiteralExp;
 import com.samskivert.jdbc.depot.expression.SQLExpression;
 
 /**
@@ -35,6 +36,14 @@ public class OrderBy extends QueryClause
     /** Indicates the order of the clause. */
     public enum Order { ASC, DESC };
 
+    /**
+     * Creates and returns a random order by clause.
+     */
+    public static OrderBy random ()
+    {
+        return ascending(new LiteralExp("rand()"));
+    }
+
     /**
      * Creates and returns an ascending order by clause on the supplied column.
      */