Required


1   /*
2    * Copyright 2002-2006 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  
17  package org.springframework.beans.factory.annotation;
18  
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   * Marks a method (typically a JavaBean setter method) as being 'required' (i.e. the
26   * (setter) method must be configured to be dependency injected with a value).
27   * 
28   * <p>Please do consult the Javadoc for the {@link RequiredAnnotationBeanPostProcessor}
29   * class (which, by default, checks for the presence of this annotation).
30   *
31   * @author Rob Harrop
32   * @since 2.0
33   * @see RequiredAnnotationBeanPostProcessor
34   */
35  @Retention  (RetentionPolicy.RUNTIME)
36  @Target  (ElementType.METHOD)
37  public @interface Required {
38  
39  }
40

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