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1   /*
2    *    Copyright 2009-2021 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    *       http://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.type;
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 jdbc types to map {@link TypeHandler}.
26   *
27   * <p>
28   * <b>How to use:</b>
29   * <pre>
30   * &#064;MappedJdbcTypes({JdbcType.CHAR, JdbcType.VARCHAR})
31   * public class StringTrimmingTypeHandler implements TypeHandler&lt;String&gt; {
32   *   // ...
33   * }
34   * </pre>
35   * @author Eduardo Macarron
36   */
37  @Documented
38  @Retention(RetentionPolicy.RUNTIME)
39  @Target(ElementType.TYPE)
40  public @interface MappedJdbcTypes {
41    /**
42     * Returns jdbc types to map {@link TypeHandler}.
43     *
44     * @return jdbc types
45     */
46    JdbcType[] value();
47  
48    /**
49     * Returns whether map to jdbc null type.
50     *
51     * @return {@code true} if map, {@code false} if otherwise
52     */
53    boolean includeNullJdbcType() default false;
54  }