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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 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 <a
+ * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
+ *
+ * @author Kurt Alfred Kluever
+ * @since 3.0
+ */
+@GwtCompatible
+public abstract class ForwardingListMultimap<K, V>
+ extends ForwardingMultimap<K, V> implements ListMultimap<K, V> {
+
+ /** Constructor for use by subclasses. */
+ protected ForwardingListMultimap() {}
+
+ @Override protected abstract ListMultimap<K, V> delegate();
+
+ @Override public List<V> get(@Nullable K key) {
+ return delegate().get(key);
+ }
+
+ @Override public List<V> removeAll(@Nullable Object key) {
+ return delegate().removeAll(key);
+ }
+
+ @Override public List<V> replaceValues(K key, Iterable<? extends V> values) {
+ return delegate().replaceValues(key, values);
+ }
+}