001/* 002 * Copyright (C) 2013 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package com.google.common.collect.testing.google; 018 019import static com.google.common.collect.testing.Helpers.copyToSet; 020 021import com.google.common.annotations.GwtCompatible; 022import com.google.common.collect.Multimap; 023import com.google.common.collect.testing.features.Feature; 024import com.google.common.collect.testing.features.TesterAnnotation; 025import java.lang.annotation.Inherited; 026import java.lang.annotation.Retention; 027import java.lang.annotation.RetentionPolicy; 028import java.util.Set; 029 030/** 031 * Optional features of classes derived from {@code Multimap}. 032 * 033 * @author Louis Wasserman 034 */ 035@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package? 036@GwtCompatible 037public enum MultimapFeature implements Feature<Multimap> { 038 VALUE_COLLECTIONS_SUPPORT_ITERATOR_REMOVE; 039 040 private final Set<Feature<? super Multimap>> implied; 041 042 MultimapFeature(Feature<? super Multimap>... implied) { 043 this.implied = copyToSet(implied); 044 } 045 046 @Override 047 public Set<Feature<? super Multimap>> getImpliedFeatures() { 048 return implied; 049 } 050 051 @Retention(RetentionPolicy.RUNTIME) 052 @Inherited 053 @TesterAnnotation 054 public @interface Require { 055 MultimapFeature[] value() default {}; 056 057 MultimapFeature[] absent() default {}; 058 } 059}