Coverage Summary for Class: SetFeature (com.google.common.collect.testing.features)

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 import com.google.common.collect.testing.Helpers;
21 import java.lang.annotation.Inherited;
22 import java.lang.annotation.Retention;
23 import java.lang.annotation.RetentionPolicy;
24 import java.util.Set;
25 
26 /**
27  * Optional features of classes derived from {@code Set}.
28  *
29  * @author George van den Driessche
30  */
31 // Enum values use constructors with generic varargs.
32 @SuppressWarnings("unchecked")
33 @GwtCompatible
34 public enum SetFeature implements Feature<Set> {
35   GENERAL_PURPOSE(CollectionFeature.GENERAL_PURPOSE);
36 
37   private final Set<Feature<? super Set>> implied;
38 
39   SetFeature(Feature<? super Set>... implied) {
40     this.implied = Helpers.copyToSet(implied);
41   }
42 
43   @Override
44   public Set<Feature<? super Set>> getImpliedFeatures() {
45     return implied;
46   }
47 
48   @Retention(RetentionPolicy.RUNTIME)
49   @Inherited
50   @TesterAnnotation
51   public @interface Require {
52     public abstract SetFeature[] value() default {};
53 
54     public abstract SetFeature[] absent() default {};
55   }
56 }