Update #0 - First Release

sources/main/java/com/google/common/collect/ForwardingMultimap.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2007 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 java.util.Collection;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import javax.annotation.Nullable;
+
+import com.google.common.annotations.GwtCompatible;
+
+/**
+ * A multimap which forwards all its method calls to another 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 Robert Konigsberg
+ * @since 2.0 (imported from Google Collections Library)
+ */
+@GwtCompatible
+public abstract class ForwardingMultimap<K, V> extends ForwardingObject implements Multimap<K, V> {
+
+	/** Constructor for use by subclasses. */
+	protected ForwardingMultimap() {
+	}
+
+	@Override
+	protected abstract Multimap<K, V> delegate();
+
+	@Override
+	public Map<K, Collection<V>> asMap() {
+		return delegate().asMap();
+	}
+
+	@Override
+	public void clear() {
+		delegate().clear();
+	}
+
+	@Override
+	public boolean containsEntry(@Nullable Object key, @Nullable Object value) {
+		return delegate().containsEntry(key, value);
+	}
+
+	@Override
+	public boolean containsKey(@Nullable Object key) {
+		return delegate().containsKey(key);
+	}
+
+	@Override
+	public boolean containsValue(@Nullable Object value) {
+		return delegate().containsValue(value);
+	}
+
+	@Override
+	public Collection<Entry<K, V>> entries() {
+		return delegate().entries();
+	}
+
+	@Override
+	public Collection<V> get(@Nullable K key) {
+		return delegate().get(key);
+	}
+
+	@Override
+	public boolean isEmpty() {
+		return delegate().isEmpty();
+	}
+
+	@Override
+	public Multiset<K> keys() {
+		return delegate().keys();
+	}
+
+	@Override
+	public Set<K> keySet() {
+		return delegate().keySet();
+	}
+
+	@Override
+	public boolean put(K key, V value) {
+		return delegate().put(key, value);
+	}
+
+	@Override
+	public boolean putAll(K key, Iterable<? extends V> values) {
+		return delegate().putAll(key, values);
+	}
+
+	@Override
+	public boolean putAll(Multimap<? extends K, ? extends V> multimap) {
+		return delegate().putAll(multimap);
+	}
+
+	@Override
+	public boolean remove(@Nullable Object key, @Nullable Object value) {
+		return delegate().remove(key, value);
+	}
+
+	@Override
+	public Collection<V> removeAll(@Nullable Object key) {
+		return delegate().removeAll(key);
+	}
+
+	@Override
+	public Collection<V> replaceValues(K key, Iterable<? extends V> values) {
+		return delegate().replaceValues(key, values);
+	}
+
+	@Override
+	public int size() {
+		return delegate().size();
+	}
+
+	@Override
+	public Collection<V> values() {
+		return delegate().values();
+	}
+
+	@Override
+	public boolean equals(@Nullable Object object) {
+		return object == this || delegate().equals(object);
+	}
+
+	@Override
+	public int hashCode() {
+		return delegate().hashCode();
+	}
+}