From 0feb2b98eda8d9f4fdc21bf9f02ac128dd51a4ee Mon Sep 17 00:00:00 2001
From: Jackson <361606225@qq.com>
Date: Thu, 4 Feb 2021 13:47:50 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dbug=20,IDGen=20=E5=AE=9E?=
 =?UTF-8?q?=E4=BE=8B=E9=81=BF=E5=85=8D=E9=87=8D=E5=A4=8D=E5=88=9B=E5=BB=BA?=
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双重校验单例模式需要加volatile来避免单例重复创建
---
 .../io/opensharding/keygen/leaf/LeafSnowflakeKeyGenerator.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/io/opensharding/keygen/leaf/LeafSnowflakeKeyGenerator.java b/src/main/java/io/opensharding/keygen/leaf/LeafSnowflakeKeyGenerator.java
index d5b01e1..9c6e870 100644
--- a/src/main/java/io/opensharding/keygen/leaf/LeafSnowflakeKeyGenerator.java
+++ b/src/main/java/io/opensharding/keygen/leaf/LeafSnowflakeKeyGenerator.java
@@ -36,7 +36,7 @@ public final class LeafSnowflakeKeyGenerator implements ShardingKeyGenerator {
     @Setter
     private Properties properties;
 
-    private IDGen idGen;
+    private volatile IDGen idGen;
 
     @Override
     public Comparable<?> generateKey() {