diff --git a/mybatis-flex-codegen/src/main/java/com/mybatisflex/codegen/template/ITemplate.java b/mybatis-flex-codegen/src/main/java/com/mybatisflex/codegen/template/ITemplate.java
index 5b6b7a40..9e562c7d 100644
--- a/mybatis-flex-codegen/src/main/java/com/mybatisflex/codegen/template/ITemplate.java
+++ b/mybatis-flex-codegen/src/main/java/com/mybatisflex/codegen/template/ITemplate.java
@@ -1,25 +1,36 @@
-/**
- * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+/*
+ *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
  */
 package com.mybatisflex.codegen.template;
 
 import java.io.File;
 import java.util.Map;
 
+/**
+ * 模板引擎。
+ */
+@FunctionalInterface
 public interface ITemplate {
 
+    /**
+     * 使用模板引擎生成代码。
+     *
+     * @param params           生成参数
+     * @param templateFilePath 模板文件位置
+     * @param generateFile     生成文件位置
+     */
     void generate(Map<String, Object> params, String templateFilePath, File generateFile);
 
 }