From 63b40b71f749bcd015867e6c93fb82106a7fe956 Mon Sep 17 00:00:00 2001
From: panos <tjzhupan@gmail.com>
Date: Mon, 13 Aug 2012 10:35:51 +0800
Subject: [PATCH] Sharded Performance improvement

'SortedMap.isEmpty()' performance is much higher than
'SortedMap.size()==0'
---
 src/main/java/redis/clients/util/Sharded.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/redis/clients/util/Sharded.java b/src/main/java/redis/clients/util/Sharded.java
index f6065bc..5448fcd 100644
--- a/src/main/java/redis/clients/util/Sharded.java
+++ b/src/main/java/redis/clients/util/Sharded.java
@@ -77,7 +77,7 @@ public class Sharded<R, S extends ShardInfo<R>> {
 
     public S getShardInfo(byte[] key) {
         SortedMap<Long, S> tail = nodes.tailMap(algo.hash(key));
-        if (tail.size() == 0) {
+        if (tail.isEmpty()) {
             return nodes.get(nodes.firstKey());
         }
         return tail.get(tail.firstKey());