From 43e01e5595407db6af2c67a3a666807276a10d7c Mon Sep 17 00:00:00 2001
From: ZhouXY108 <luquanlion@outlook.com>
Date: Mon, 26 Aug 2024 10:41:26 +0800
Subject: [PATCH] =?UTF-8?q?YearQuarter=20=E5=AE=9E=E7=8E=B0=20Comparable?=
 =?UTF-8?q?=20=E5=92=8C=20Serializable=20=E6=8E=A5=E5=8F=A3=EF=BC=9B?=
 =?UTF-8?q?=E6=96=B0=E5=A2=9E=20isBefore=20=E5=92=8C=20isAfter=20=E6=96=B9?=
 =?UTF-8?q?=E6=B3=95=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../plusone/commons/base/YearQuarter.java     | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/main/java/xyz/zhouxy/plusone/commons/base/YearQuarter.java b/src/main/java/xyz/zhouxy/plusone/commons/base/YearQuarter.java
index 12149ea..e0b0bf5 100644
--- a/src/main/java/xyz/zhouxy/plusone/commons/base/YearQuarter.java
+++ b/src/main/java/xyz/zhouxy/plusone/commons/base/YearQuarter.java
@@ -1,5 +1,6 @@
 package xyz.zhouxy.plusone.commons.base;
 
+import java.io.Serializable;
 import java.time.LocalDate;
 import java.time.Month;
 import java.time.YearMonth;
@@ -16,7 +17,8 @@ import com.google.common.base.Preconditions;
  * 
  * @author zhouxy
  */
-public final class YearQuarter {
+public final class YearQuarter implements Comparable<YearQuarter>, Serializable {
+    private static final long serialVersionUID = 3804145964419489753L;
 
     /** 年份 */
     private final int year;
@@ -153,6 +155,25 @@ public final class YearQuarter {
         return year == other.year && quarter == other.quarter;
     }
 
+    // compareTo
+
+    @Override
+    public int compareTo(YearQuarter other) {
+        int cmp = (this.year - other.year);
+        if (cmp == 0) {
+            cmp = (this.quarter.compareTo(other.quarter));
+        }
+        return cmp;
+    }
+
+    public boolean isBefore(YearQuarter other) {
+        return this.compareTo(other) < 0;
+    }
+
+    public boolean isAfter(YearQuarter other) {
+        return this.compareTo(other) > 0;
+    }
+
     // toString
 
     /**