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/*
 * 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 com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Map.Entry;
import java.util.Set;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A set multimap which forwards all its method calls to another set multimap. Subclasses should
 * override one or more methods to modify the behavior of the backing multimap as desired per the decorator pattern.
 *
 * 

{@code default} method warning: This class does not forward calls to {@code * default} methods. Instead, it inherits their default implementations. When those implementations * invoke methods, they invoke methods on the {@code ForwardingSetMultimap}. * * @author Kurt Alfred Kluever * @since 3.0 */ @GwtCompatible public abstract class ForwardingSetMultimap extends ForwardingMultimap implements SetMultimap { @Override protected abstract SetMultimap delegate(); @Override public Set> entries() { return delegate().entries(); } @Override public Set get(@Nullable K key) { return delegate().get(key); } @CanIgnoreReturnValue @Override public Set removeAll(@Nullable Object key) { return delegate().removeAll(key); } @CanIgnoreReturnValue @Override public Set replaceValues(K key, Iterable values) { return delegate().replaceValues(key, values); } }





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