ValidatableStringRecord 实现 Comparable 接口

src/main/java/xyz/zhouxy/plusone/commons/domain/ValidatableStringRecord.java

@@ -31,7 +31,8 @@ import xyz.zhouxy.plusone.commons.util.RegexUtil;
  * @author <a href="https://gitee.com/zhouxy108">ZhouXY</a>
  * @since 0.1.0
  */
-public abstract class ValidatableStringRecord {
+public abstract class ValidatableStringRecord
+        implements Comparable<ValidatableStringRecord> {
     private final String value;
 
     protected ValidatableStringRecord(String value, Pattern pattern) {
@@ -51,6 +52,11 @@ public abstract class ValidatableStringRecord {
         return this.value;
     }
 
+    @Override
+    public int compareTo(ValidatableStringRecord o) {
+        return this.value.compareTo(o.value);
+    }
+
     @Override
     public String toString() {
         return this.value();