1 /*
2 * Copyright 2009-2023 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.apache.ibatis.annotations;
17
18 import java.lang.annotation.Documented;
19 import java.lang.annotation.ElementType;
20 import java.lang.annotation.Retention;
21 import java.lang.annotation.RetentionPolicy;
22 import java.lang.annotation.Target;
23
24 /**
25 * The annotation that specify the parameter name.
26 * <p>
27 * <b>How to use:</b>
28 *
29 * <pre>
30 * public interface UserMapper {
31 * @Select("SELECT id, name FROM users WHERE name = #{name}")
32 * User selectById(@Param("name") String value);
33 * }
34 * </pre>
35 *
36 * @author Clinton Begin
37 */
38 @Documented
39 @Retention(RetentionPolicy.RUNTIME)
40 @Target(ElementType.PARAMETER)
41 public @interface Param {
42 /**
43 * Returns the parameter name.
44 *
45 * @return the parameter name
46 */
47 String value();
48 }