1   /*
2    * Copyright (C) 2008 The Guava 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 com.google.common.collect.testing.features;
18  
19  import com.google.common.annotations.GwtCompatible;
20  
21  import java.lang.annotation.Documented;
22  import java.lang.annotation.Retention;
23  import java.lang.annotation.RetentionPolicy;
24  import java.lang.annotation.Target;
25  
26  /**
27   * Use this to meta-annotate XxxFeature.Require annotations, so that those
28   * annotations can be used to decide whether to apply a test to a given
29   * class-under-test.
30   * <br>
31   * This is needed because annotations can't implement interfaces, which is also
32   * why reflection is used to extract values from the properties of the various
33   * annotations.
34   *
35   * @see CollectionFeature.Require
36   *
37   * @author George van den Driessche
38   */
39  @Target(value = {java.lang.annotation.ElementType.ANNOTATION_TYPE})
40  @Retention(value = RetentionPolicy.RUNTIME)
41  @Documented
42  @GwtCompatible
43  public @interface TesterAnnotation {
44  }