3

src/main/java/com/ycwl/basic/constant/FreeStatus.java

@@ -0,0 +1,71 @@
+package com.ycwl.basic.constant;
+
+/**
+ * 免费状态枚举
+ * 定义源文件的收费和免费两种状态
+ *
+ * @author Claude
+ * @since 2025-10-31
+ */
+public enum FreeStatus {
+    /**
+     * 收费状态
+     */
+    PAID(0, "收费"),
+
+    /**
+     * 免费状态
+     */
+    FREE(1, "免费");
+
+    private final int code;
+    private final String description;
+
+    FreeStatus(int code, String description) {
+        this.code = code;
+        this.description = description;
+    }
+
+    public int getCode() {
+        return code;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    /**
+     * 根据代码值获取枚举
+     *
+     * @param code 状态代码
+     * @return 对应的枚举值，如果不存在返回 null
+     */
+    public static FreeStatus fromCode(int code) {
+        for (FreeStatus status : values()) {
+            if (status.code == code) {
+                return status;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * 判断给定的代码是否为免费状态
+     *
+     * @param code 状态代码
+     * @return true-免费，false-收费
+     */
+    public static boolean isFree(Integer code) {
+        return code != null && code == FREE.code;
+    }
+
+    /**
+     * 判断给定的代码是否为收费状态
+     *
+     * @param code 状态代码
+     * @return true-收费，false-免费
+     */
+    public static boolean isPaid(Integer code) {
+        return code != null && code == PAID.code;
+    }
+}