com.google.common.collect.ForwardingListMultimap Maven / Gradle / Ivy
/*
* Copyright (C) 2010 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.collect;
import com.google.common.annotations.GwtCompatible;
import java.util.List;
import javax.annotation.Nullable;
/**
* A list multimap which forwards all its method calls to another list multimap.
* Subclasses should override one or more methods to modify the behavior of
* the backing multimap as desired per the decorator pattern.
*
* @author Kurt Alfred Kluever
* @since 3.0
*/
@GwtCompatible
public abstract class ForwardingListMultimap
extends ForwardingMultimap implements ListMultimap {
/** Constructor for use by subclasses. */
protected ForwardingListMultimap() {}
@Override protected abstract ListMultimap delegate();
@Override public List get(@Nullable K key) {
return delegate().get(key);
}
@Override public List removeAll(@Nullable Object key) {
return delegate().removeAll(key);
}
@Override public List replaceValues(K key, Iterable values) {
return delegate().replaceValues(key, values);
}
}