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.Retention;
20 import java.lang.annotation.RetentionPolicy;
21 import java.lang.annotation.Target;
22
23 import org.apache.ibatis.mapping.FetchType;
24
25 /**
26 * The annotation that specify the nested statement for retrieving single object.
27 *
28 * @see Result
29 * @see Results
30 *
31 * @author Clinton Begin
32 */
33 @Documented
34 @Retention(RetentionPolicy.RUNTIME)
35 @Target({})
36 public @interface One {
37 /**
38 * Returns the columnPrefix.
39 *
40 * @return the columnPrefix.
41 *
42 * @since 3.5.5
43 */
44 String columnPrefix() default "";
45
46 /**
47 * Returns the result map id used to map single object.
48 *
49 * @return the result map id
50 *
51 * @since 3.5.5
52 */
53 String resultMap() default "";
54
55 /**
56 * Returns the statement id that retrieves single object.
57 *
58 * @return the statement id
59 */
60 String select() default "";
61
62 /**
63 * Returns the fetch strategy for nested statement.
64 *
65 * @return the fetch strategy
66 */
67 FetchType fetchType() default FetchType.DEFAULT;
68
69 }