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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.rat.config.parameters;
20  
21  import java.lang.annotation.ElementType;
22  import java.lang.annotation.Retention;
23  import java.lang.annotation.RetentionPolicy;
24  import java.lang.annotation.Target;
25  
26  /**
27   * An annotation that marks a configuration component.
28   * 
29   */
30  @Target({ElementType.FIELD, ElementType.TYPE, ElementType.METHOD})
31  @Retention(RetentionPolicy.RUNTIME)
32  public @interface ConfigComponent {
33      /**
34       * The common name for the component. If not specified the name of the field or class is used.
35       * @return the component name.
36       */
37      String name() default "";
38  
39      /**
40       * The description of the component.
41       * @return the component description.
42       */
43      String desc() default "";
44      /**
45       * The component type
46       * @return the component type.
47       */
48      ComponentType type();
49      
50      /**
51       * For collections defines the enclosed type.
52       * @return the enclosed type.
53       */
54      Class<?> parameterType() default void.class;
55      
56      /**
57       * if {@code true} this component can be child of the containing component
58       * @return {@code true} if this component can be child of the containing component
59       */
60      boolean required() default false;
61  }