1/* 2 * Copyright (C) 2010 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 17package com.google.common.collect; 18 19import com.google.common.annotations.GwtCompatible; 20 21import java.util.Comparator; 22import java.util.SortedSet; 23 24import javax.annotation.Nullable; 25 26/** 27 * A sorted set multimap which forwards all its method calls to another sorted 28 * set multimap. Subclasses should override one or more methods to modify the 29 * behavior of the backing multimap as desired per the <a 30 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>. 31 * 32 * @author Kurt Alfred Kluever 33 * @since 3.0 34 */ 35@GwtCompatible 36public abstract class ForwardingSortedSetMultimap<K, V> 37 extends ForwardingSetMultimap<K, V> implements SortedSetMultimap<K, V> { 38 39 /** Constructor for use by subclasses. */ 40 protected ForwardingSortedSetMultimap() {} 41 42 @Override protected abstract SortedSetMultimap<K, V> delegate(); 43 44 @Override public SortedSet<V> get(@Nullable K key) { 45 return delegate().get(key); 46 } 47 48 @Override public SortedSet<V> removeAll(@Nullable Object key) { 49 return delegate().removeAll(key); 50 } 51 52 @Override public SortedSet<V> replaceValues( 53 K key, Iterable<? extends V> values) { 54 return delegate().replaceValues(key, values); 55 } 56 57 @Override public Comparator<? super V> valueComparator() { 58 return delegate().valueComparator(); 59 } 60} 61